向投资传奇学习以迎战2020年(富达官方实录)
TRANSCRIPT
TRANSCRIPT
向投资大师学习,迎战 2020 年
Learn from investing legends for 2020
贾斯汀·卡博诺:大家好。我感到非常激动,也深感荣幸能在此。
Justin Carbonneau: Hello, everyone. I’m excited and I feel very privileged to be
今天这次网络研讨会上,由我来做介绍。我叫贾斯汀·卡博诺,担任副总裁。
presenting to you on today’s webinar. My name is Justin Carbonneau, vice
Validea 的总裁。在今天的演讲“从投资中学习”中,
president at Validea. In today’s presentation, “Learning from Investing
到 2020 年及以后的神话传奇,”我们将讨论相关理念及已披露的
Legends for 2020 and Beyond,” we’ll discuss the philosophies and disclosed
伟大投资者的策略和其它可验证的选股方法
strategies of great investors and other demonstratable stock selection
方法。为了最大化我们今天的时间,并帮助您获得最充分的收益
methods. In order to maximize our time today and help you get the most out
出于这一点,我想直接开始演讲。
of this, I want to jump right into the presentation.
所以,今天演讲的核心思想,用 163 个字就能讲清楚。我来把它读一遍。
So, here is the big idea of today’s presentation in 163 words. I want to read it
向你们说明这个挑战,同时也说明当今的机遇,这样就会非常清楚。
to you so it’s very clear of the challenge, but also the opportunity in today’s
对于主动型股票投资者而言,市场就是如此,而这也是我希望我们能够达成的目标。
market for the active stock investor and what I hope we will accomplish in
今天的演讲提到:“持有个股依然是长期投资中至关重要的一环。”
today’s presentation. “Holding individual stocks remains a vital piece of long-
term wealth creation. 但寻找和分析具体创意则不然。
term wealth creation. Sourcing and analyzing specific ideas, however, can be
耗时长、风险高且复杂。面对超过 15000 只股票和共同基金
time-consuming, risky & complicated. With over 15,000 stocks, mutual funds
单是在美国就有数千只股票和 ETF,你花一辈子也分析不完。
and ETFs in the U.S. alone, you could spend a lifetime analyzing the set of
可投资的想法。在当今快节奏的世界里,许多人没有时间去
investable ideas. In today's fast-paced world, many people lack the time to
连坐下来吃顿饭的时间都没有,所以必须找到高效的股票分析方法,
even sit down for dinner, so finding efficient methods for stock analysis and
想法的产生对于当今主动选股的投资者来说至关重要。那么,你如何
idea generation is essential for today’s active stock investor. So, how do you
能够有效且系统地识别并研究优质机会吗?我们
effectively and systematically identify and research good opportunities? We
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我相信那些来自传奇投资者、经得起时间考验的成熟方法论。
believe proven, time-tested methodologies from legendary investors like
沃伦·巴菲特、彼得·林奇、本·格雷厄姆以及其他拥有可验证业绩的人
Warren Buffett, Peter Lynch, Ben Graham and others with demonstrable
从公开披露的著述中提炼出的方法,提供了有用的
approaches extracted from publicly disclosed writings provide a useful
构建一个能够发挥重要作用的股票挖掘和分析框架
framework for sourcing and analyzing stocks that can play an important role in
长期财富积累。以下报告献给
long-term wealth accumulation. The following presentation is dedicated to
我们是怎样利用并效仿这些策略来发现稳妥的投资的
how we leverage and emulate these strategies to find sound investments
所以,你可以从他们身上学到一些东西。”
ideas and what active investors like yourself can learn from them.” So, you can
请看我们今天的展示将走向何处,以及我们将如何尝试解决这个问题。
see where we are going in today’s presentation and how we’ll try to tackle that
big idea.
big idea.
以下是本次演示的概述:首先,由
Here’s an overview of the presentation: we’ll get some opening remarks from
一位传奇选股高手。我会谈谈我们如何识别这类公司。
a legendary stock picker. I’ll talk about how we go about identifying these
我们在 Validea 建模的导师策略。我来告诉你是谁,这些导师和
guru strategies that we model at Validea. I’ll tell you who the gurus and the
策略是什么,以及它们基于什么。然后,我会给你们一个概述
strategies are, and what they’re based on. Then, I’ll give you an overview of
五种不同的投资风格策略。我们将考察这些策略。
five different approaches across investing styles. We’ll look at strategy, give
您将看到支撑该策略模型的证据和来源。然后我们会
you the evidence and the source behind the strategy model. And then we’ll
为每一只股票在当前市场上确立投资逻辑。我来逐一说明。
establish the investment thesis for each one in today’s market. I’ll walk you
通过这五位大师的详细投资方法论,我们将逐一审视
through the detailed investment methodologies of these five, and we’ll look at
下面是一些具体的股票实例。最后,我会总结几个关键经验。
some concrete, stock-specific examples. I’ll conclude with a few key lessons
以及其他一些我希望能够帮助你成为更成功投资者的建议
and other tips that I hope can help you become a more successful investor and
帮助您完善选股流程和策略。
helping your stock selection process and strategy.
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好的,在 12 月 21 日的《巴伦周刊》上,他们刊登了两篇专题报道,内容是
OK, so, on December 21st in Barron’s Magazine, they had two features with
富达基金的前任传奇基金经理彼得·林奇。那些文章里满是
Fidelity’s former legendary fund manager, Peter Lynch. The pieces were full of
知识和投资智慧。我想做的是重点谈几点
knowledge and investing wisdom. What I wanted to do is highlight a few
我认为与今天演讲高度相关的几个方面。首先是
things that I thought were highly relevant to today’s presentation. In the first
那篇文章的标题是“选股大师彼得·林奇:如果你只投资于”
piece, which was titled “Master Stockpicker, Peter Lynch: If You Only Invest in
“指数基金,你永远跑不赢它,”作者写道,“林奇让投资不再神秘。”
an Index, You’ll Never Beat It,” the author wrote, “Lynch demystified investing.
他反复强调,要寻找那些能够实现盈利增长的公司。
He emphasized searching for companies that could deliver earnings growth 20
最多达到 50%。他推崇市盈增长比率(PEG ratio),即一家公司的市盈率。
to 50 percent. He espoused a PEG ratio, a company’s price earning’s ratio
用长期增长率去除市盈率。PEG 低于 1 意味着该股票
divided by its long-term growth rate. A PEG of less than one means the stock
值得细看。林奇相信,个人投资者拥有一种优势。
is worth a closer look. Lynch believed that individual investors have an edge
超越基金经理,因为他们能在股票成为热门之前就识别出趋势。
over fund managers because they could spot trends before a stock became
受欢迎。在第二篇文章中,林奇所接受的那场专访,其标题是
popular. In the second piece, where it’s an interview that Lynch did, the title of
那篇文章的标题是“彼得·林奇凭借 50 年选股经验,寻找
that piece was “Peter Lynch Draws on 50 Years of Stock-Picking to Find
林奇说:“当今市场的增长机会,如果你打算……
Growth Opportunities in Today’s Market,” Lynch says, “if you’re going to
投资的时候,你必须遵循一些特定的规则。有一件事我希望每位参与投资的人都能做到——
invest, you have to follow certain rules. The one thing I want everybody who is
买入个股的人必须明白这家公司的故事,这五
buying individual stocks to get is they have to understand the story, the five
他们之所以这么想,是因为觉得公司出了什么问题。要是你不能
reasons they think something’s going right for the company. If you can’t
如果你没法让一个八岁小孩明白你为什么持有这家公司,那你可能就不该持有它。
convince an eight-year-old why you own this thing, you probably shouldn’t
拥有它。在查看财务数据之前,不要投资一家公司。如果你
own it. Don’t invest in a company before you look at the financials. If you
“如果你读完了五年级,你就能搞定这些数学。”所以,这些概念,
made it through fifth grade, you can handle the math.” So, these concepts,
持有个股、关注基本面与估值,
owning individual stocks, looking at the fundamentals and valuations, having a
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虽然拥有一套规则、甚至了解你所持有股票背后的故事,这些都……
set of rules, even knowing the story behind the stocks you own, these are all
重要,并且很大程度上与我们今天的讨论相关。
important, and to a large extent, will relate to our discussion today.
第一个问题是:“我们如何识别成功的投资者?”
So, the first question is, “How do we go about identifying successful investors
以及其他投资策略?”在 Validea,我们关注的核心是三个方面。
and other investment strategies?” At Validea, we look at really three things
在物色管理者时,我们希望看到长期的市场业绩记录。
when sourcing one. One, we want to see a long-term track record of market
在现实世界或回溯测试中提升业绩。该策略需要
up performance, either in the real world or back tested. The strategy needs to
这些信息会在书籍、学术论文或其他公开资料中披露。
be publicly disclosed in books, academic papers, or other sources. And then
那么第三点,这种方法需要能够在很大程度上自动化运行。
then number three, the methodology needs to be able to be run largely
通过计算机编程和建模进行量化分析,这意味着要审视
quantitatively via computer programming and modeling, which means looking
在对基本面、定价等要素进行分析时,我需要先说明——
at things like fundamentals and pricing in order to do the analysis. Before I tell
我来告诉你们谁是权威,先给你们读一段重要的免责声明:“以上内容中,没有任何一项可以……”
you who the gurus are, let me just read you this important disclaimer: “None of
今天演示中提到的个人赞同其中任何一项
the individuals mentioned in today’s presentation endorse any of the
关于我们的策略或策略实施。Validea 的模型是
strategies or our implementation of these strategies. Validea’s models are
从公开来源(巴菲特本人所著的书籍或研究论文)中摘录
extracted from publicly available sources (a book or research paper by or
关于所提及的每一位个人(的情况),并且并不旨在代表
about each of the individuals mentioned) and are not meant to represent the
“大师们”或个人,在任何方面均不适用。所有这些策略都
‘gurus’ or individuals themselves in any way. All of the strategies are
从性质上讲是量化的,而这些大师们自己可能已经改变、调整或
quantitative in nature and the gurus themselves may have changed, altered or
从未遵循过这些具体策略。今天提供的信息
never followed these exact strategies. The information presented in today’s
这份演示旨在让你了解主动型
presentation is intended to give you an understanding of active and
量化选股策略仅此而已。此外,个股
quantitative stock selection strategies only. In addition, individual stock
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选择可能风险极高,而他讨论的材料中没有一项是……
selection can be very risky and none of the material discussed in his
本演示内容不应被视为投资建议或个股推荐。
presentation should be construed as investment advice or as individual stock
recommendations.”
recommendations.”
所以,从 2003 年开始,我们就一直在用计算机来构建投资策略。
So, since 2003, we’ve been building computerized investment strategies by or
关于以下个人和投资者。我们把这些策略
about the following individuals and investors. We capture these strategies and
在量化股票分析系统中的模型投资组合。我要快速……
model portfolios in a quantitative stock analysis system. I’m going to quickly
我来向你们介绍这些人是谁,以及我们作为依据的来源。
walk you through who these individuals are and the source that we base our
我来从左到右、从上到下依次介绍这些模式。
models on. I’m going to go from left to right and top to bottom, and I’m going
为了快速推进——因为还有很多人要提问。
to do this quickly because there’s a lot of people to get through.
所以我们运行的模型基于彼得·林奇的“合理价格增长”理念。
So, we run a model based on Peter Lynch’s “growth at a reasonable price”
投资方法,他在自己的书《笑傲华尔街》中做过阐述。
investing approach, which he outlined in his book, One Up on Wall Street.
众所周知,彼得·林奇是史上最成功的基金经理之一。
Peter Lynch, as many know, is one of the most successful fund managers of all
时间。我们奉行逆向投资策略,其依据是戴维·德雷曼的
time. We run a contrarian investment strategy based on David Dreman’s
他在《逆向投资策略》中阐述的方法,就是一种策略。
approach he outlined in Contrarian Investment Strategies. There’s a strategy
根据约翰·聂夫在《约翰·聂夫谈投资》一书中概述的价值选股标准,
based on John Neff’s value screen, which he outlined in John Neff on
投资。有些人可能知道,奈夫管理温莎基金长达十年之久。
Investing. Some may know that Neff managed the Windsor Fund for a decade
并且能够每年跑赢市场约三个百分点,持续了很长一段时期。
and was able to beat the market by about three percent annually over a very
基于本·格雷厄姆的价值投资模型,我们在很长一段时间里一直沿用。
long period of time. We have a value investing model based on Ben Graham’s
本杰明·格雷厄姆在《聪明的投资者》中阐述的深度价值方法。他以这一方法而闻名。
deep value approach he outlined in The Intelligent Investor. Graham is known
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作为价值投资之父,他对最伟大的投资者产生了巨大影响
as the father of value investing and had a huge influence on the greatest
沃伦·巴菲特,全球投资者。我们运行一个基于肯·费雪(Ken Fisher)的模型。
investor in the world, Warren Buffett. We run a model based on Ken Fisher’s
他在《超级强势股》中讨论的方法,正是他推广了价格-
approach that he discussed in Super Stocks, where he popularized the price-
致销售比率。乔尔·格林布拉特的神奇公式,我们从中提取出了
to-sales ratio. The magic formula by Joel Greenblatt, which we extracted from
他的那本书,《战胜市场的小书》(The Little Book that Beats the Market)。这是一门组合
his book, The Little Book that Beats the Market. This is a combination of
格雷厄姆的价值投资方法与巴菲特对品质的专注。这两者结合在一起。
Graham’s value approach and Buffett’s focus on quality. It brings these two
将这些概念整合到一个简单的系统模型中。取消方法,
concepts together in one simple systematic model. The cancel method, which
由威廉·欧奈尔(William O’Neil)总结并写入其著作《如何赚钱》(How to Make)中。
was developed by William O’Neil and written about in his book, How to Make
投资股票的金钱,是一种旨在通过复制沃伦·巴菲特策略的模型。
Money in Stocks, a model that seeks to replicate Warren Buffet’s strategy by
我们寻找的是定价有吸引力的优质蓝筹股。
looking for high-quality blue-chip stocks that are attractively priced. We base
在《巴菲特学》那本书里,我们提出了巴菲特模型。我们接下来会实际演练一遍。
our Buffett model on the book Buffettology. We’ll actually walk through that in
几分钟。一种基于马丁·茨威格《制胜》一书的增长型投资模型。
a few minutes. A growth investing model based on Martin Zweig in Winning
在华尔街曾一度,茨威格拥有排名第一的投资。
on Wall Street. At one point, Zweig had the number one ranked investment
根据赫伯特金融数据基于风险调整后收益的投资简报
newsletter based on risk adjusted returns according to the Hulbert Financial
回顾。一个基于梅布·费伯在其著作中所做研究的模型,
Digest. A model based on the research done by Meb Faber in his book,
股东收益率。股东收益率涵盖了公司能够影响股东财富的所有途径——
Shareholder Yield. Shareholder Yield captures all the ways a company can
向股东返还现金。这一指标近年来变得流行得多。
return cash to shareholders. It’s become a much more popular metric over the
过去 10 年里,基于詹姆斯的工作和回测的多种策略。
last 10 years. Multiple strategies based on work and back testing of James
奥肖内西在《华尔街致胜之道》一书中。
O’Shaughnessy in What Works on Wall Street. What Works on Wall Street is
在简单、系统、量化的策略方面,最具开创性的著作是
the seminal book in terms of simple systematic, quantitative strategies and the
从长期来看,哪些策略表现最好?我们来看看其中之一。
ones that have worked best over the long term? We’ll look at one of the
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奥肖内西几分钟就建好了模型。一个小盘成长型投资者的模型。
O’Shaughnessy models in a few minutes. A small cap growth investor model
基于汤姆和大卫合著的《傻瓜投资指南》
based on the Motley Fool Investment guide written by Tom and David
加德纳,Motley Fool 的创始人。另一种深度价值模型被提取出来。
Gardner, the founders of Motley Fool. Another deep value model extracted
最近有一本书叫《收购者倍数》(The Acquirers Multiple),作者是托比亚斯·卡莱尔(Tobias Carlisle)。书里提到了一位叫韦恩(Wayne)的人。
from a recent book, The Acquirers Multiple, written by Tobias Carlisle. Wayne
索普,这位 AAII 的分析师,曾撰写并检验过一项关于盈利修正的研究。
Thorp, an analyst at AAII, he wrote about and tested an earnings revision
模型。那份研究报告的标题是《如何从修正中获利》。
model. The name of that research report is How to Profit from Revisions in
分析师们的盈利预测。有一种成长股投资策略就是基于这个的。
Analysts’ Earnings Estimates. There’s a growth investing strategy based on the
帕塔·莫汉拉姆(Partha Mohanram)的学术研究。那篇论文的题目是《区分……》
academic research of Partha Mohanram. The name of that paper is Separating
使用财务指标在低账面市值比股票中筛选赢家与输家
Winners from Losers Among Low Book-to-Market Stocks Using Financial
陈述分析。另一个基于学术的模型来自约瑟夫·皮奥特罗斯基。
Statement Analysis. Another academic-based model from Joseph Piotroski.
这就是价值策略。一种基于帕特里克·奥肖内西(Patrick O'Shaughnessy)研究的策略。
That’s Value Strategy. A strategy using Patrick O’Shaughnessy’s research and
长期测试来自他的书《千禧一代的金钱》。双动量。
long-term testing from his book, Millennial Money. A dual momentum
按照学术研究“双动量:基本面”(Twin Momentum: Fundamental)的方法来操作。
approach modelled after the academic study Twin Momentum: Fundamental
投资趋势的黄大山。该策略将价格
Trends Matter by Dashan Huang. That strategy combines both price
趋势型动量与基本面型动量结合在一起。纯粹的动量模型。
momentum and fundamental momentum together. A pure momentum model
摘自韦斯·格雷的《量化动量》一书。这是一种策略。
extracted from Wes Gray’s book, Quantitative Momentum. That is a strategy
我们再过几分钟就会看到。最后,还有一个多因子和低波动性因素。
we’ll look at in a few minutes. And then lastly, a multi-factor and low volatility
Pim van Vliet 在其著作《High》中阐述的方法
method developed by Pim van Vliet and written about in his book, High
低风险回报与以下研究论文。我们也会看看那个。
Returns from Low Risk and following research paper. We’ll also look at that
MODEL 的详细情况。
model in some detail.
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所以,这里我确实想提两点。第一点是,每一位
So, there’s really two points I want to mention here. One is that every one of
我刚才提到的这些策略,在书籍和学术文献里都能读到。
these strategies I just mentioned can be read about in books and/or academic
你可以买这些资料作为参考和学习。
papers. These sources exist for you to reference and learn from. You can buy
亚马逊上的书,差不多一键就能搞定,所有研究也一样。
the books on Amazon pretty much with like one click, and all of the research
我提到的那些论文可以在 SSRM 上免费下载。第二件事是——
papers that I mentioned are free for download on SSRM. The second thing is
我们竭尽全力贯彻这些书中所阐述的模式。
we do our best to implement the models as they were outlined in these
但我们是多个渠道在找,所以不用从头开始。我们想做的
sources, so we’re not trying to reinvent the wheel here. What we’re trying to
——而我今天希望能向各位展示的是,选股中的某些部分
do -- and hopefully I’ll show you today -- is that parts of these stock selection
1. 以下方法可用于帮助分析股票和寻找新的投资思路
approaches can be used to help analyze stocks and find new investment ideas
稍加努力。每种投资模式都不同……所以,
with a little bit of effort. With each investment model, they’re differen… so, the
第一类是我认为的价值导向型模式。
first grouping is what I would consider value-focused models. These are
那些寻找基于盈利折价交易的股票模型,
models that are seeking stocks that trade at a discount based on earnings,
账面价值,或其他价值指标。绝大多数(即便不是全部)都把这些指标与价值挂钩。
book value, or some other value metric. Most of if not all couple the value
的标准与其他基本面因素相结合。接下来是我称之为价值的那一点。
criteria with other fundamental factors. The next is what I would call our value
在品质类别中。这些是既强调价值又强调品质的模范企业。
in quality category. These are models that emphasize both value and quality
特点。所以,这里的想法是:以合理的价格买入好公司。
characteristics. So, the idea here is buying good companies at reasonable
按照沃伦·巴菲特式投资风格来定价。还有另一类,我
prices a la the Warren Buffett style of investing. There’s another category that I
通话质量和收益率。这有点独特,但本质上讲,质量
call quality and yield. This is a bit unique, but basically there’s a quality
仅作单一一段落翻译如下:
其中包含一个组成部分,然后,它将这个部分与其他基本标准相结合。
component to it, and then it couples that with other fundamental criteria that
成长性,或者说成长性对选股至关重要。
are important in stock selection. We then have our growth or growth at a
合理价格组。这些策略旨在识别那些
reasonable price grouping. These are strategies that look to identify firms that
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增长型公司,同时也具备其他吸引人的基本面特征。
are growth-like companies that have other attractive fundamentals or
那些使它们符合你理想中成长股特征的特质
characteristics that make them the type of growth stocks you want to be
看看这些模型。还有动量模型,这类模型就是——
looking at. And then there’s the momentum models, which are models that
奖励那些股价走势强劲的公司。在多数情况下,动量就是
reward companies with strong price strength. In most cases, momentum is
但并非在所有情况下都如此。所以,我们正在
combined with other fundamental factors, but not in all cases. So, what we’re
我们要做的是,在每一类中各选一个模型,仔细看看。
going to do is we’re going to look at one model in each category in detail, and
我来跟你们说说这个。但我也觉得很重要的一点是,而且我希望
I’ll walk you through that. But what I also thought was important, and I wanted
我想强调的是,对于希望运用这些策略的投资者而言,我认为
to emphasize, was that for investors looking to utilize these strategies, I believe
找到与你的信念相一致的策略至关重要。因此,如果你
it’s important to find strategies that align with what you believe in. So, if you’re
作为一个价值投资的坚定信徒,你大概不想一头扎进那些……
a big believer in value investing, you probably want to be not going into the
增长或动量类模型。或者如果你极为看重股息,你
growth or momentum type of models. Or if you highly value dividends, you
你可能会想更多关注质量和收益型的策略。比如
may want to focus on more of the quality and yield type of strategies. Like
沃伦·巴菲特和查理·芒格喜欢说:“留在你的能力圈内。”
Warren Buffett and Charlie Munger like to say, “Stay within your circle of
才能。专注于你所了解并相信的事情,并且
competence. Stay focused on what you know and what you believe in, and
不要离开这个圈子太远。
don’t go too far outside that circle.”
所以,我认为投资者运用此类策略有两种方式。
So, there’s two ways, I think, that investors can utilize strategies like this. The
首先是个股分析,这样你就可以利用基本面标准来……
first is an individual stock analysis so you can utilize the fundamental criteria in
这些策略并将其应用于个股研究。通过学习了解
these strategies and apply it to individual stock research. By learning about
你将能够理解这些策略的关键点、财务状况和估值。
the strategies, you’ll be able to understand the key, financials, valuation
metrics, and technical variables that have been deemed important and robust.
那些被视为重要且稳健的指标和技术变量。
metrics, and technical variables that have been deemed important and robust.
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然后你就可以开始在自身操作中融入更多规则和阈值。
You can then start to incorporate more rules and thresholds in your own
随着你熟悉这些策略的过程,你还可以这样做。
process as you familiarize yourself with each of these strategies. You can also
使用这样的一些策略来生成投资想法。所以,与其创造(新的投资想法),不如(从已有的想法中筛选)。
use strategies like this for investment idea generation. So rather than creating
从零开始筛选,你可以提取出基本标准,然后…
a screen from scratch, you can extract the fundamental criteria outlined and
这些投资者通过筛选来寻找新的股票思路。显然,筛选过程
tested by these investors and screen for new stock ideas. Screens, obviously,
正如许多人知道的,这为寻找新的投资想法提供了一种不错且高效的方式。
as many know, provide a nice, efficient way to source new investment ideas
你可以通过筛选,从成百上千只股票中挑出符合条件的。
and you can screen for or screen through hundreds or thousands of stocks all
一旦确定了自己的判断足够自信,你就能立刻行动。
at once. What you can then do, if you feel comfortable enough, is you can
整合你自己的基础变量,进一步精炼并排序清单
integrate your own fundamental variables and further refine and sort the list of
stocks.
stocks.
那么,今天我们要逐一探讨的就是以下五个模型。
So, here are the five models we’re going to walk through today. We’re going
首先,从基于詹姆斯·奥肖内西的价值模型开始。
to start with the value model based on James O’Shaughnessy’s value
综合方法。接下来,我们将审视基于沃伦·巴菲特的模型。
composite approach. We’ll then look at the Warren Buffett based model,
基于《巴菲特之道》这本书。这将成为我们的价值与质量模型。
based on the book Buffettology. This will be our value and quality model.
在品质与收益率类别下,我们来看看 Pim van Vliet 的多因素
Under the quality and yield category, we’ll look at the Pim van Vliet multi-
在成长型投资阵营里,我们采用了……
factor and conservative stock selection method. In the growth camp, we’ll
看看帕塔·莫汉拉姆关于如何识别成长股的研究,
look at Partha Mohanram’s research on how to identify growth stocks that
有潜力继续表现良好。至于动量投资,我们会关注它。
have the potential to go on and perform well. And for momentum, we’ll look
韦斯·格雷在其著作《量化动量》中提出的方法。
at the method developed by Wes Gray and his book Quantitative Momentum.
当然,我明白这些名字不一定都有帮助,但是
Now, I understand that not all of these are necessarily helpful names, but with
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每个模型,我们都要逐一详细讲解。
each of the models, what we’re going to do is we’re going to walk through
我来给你们一个关键的根本性的投资洞见。
them. I’m going to give you the key fundamental investing insight of what I
希望你能记住并能带着这个演讲的收获离开。
hope you can remember and walk away from this presentation with. What
我们接下来对每个模型要做的就是确定那个关键洞察是什么。我来举个例子。
we’ll then do for each model is we’ll establish what that key insight is. I’ll give
我给你做一个简要的战略概述。我会披露信息来源和长期情况。
you a brief strategy overview. I’ll disclose the source and the long-term
这一策略背后的证据。然后我会提供我认为可能是一个
evidence behind the strategy. And then I’ll provide you what I think could be a
2020 年针对这类策略的合理投资论点。我们会逐步分析。
reasonable investment thesis for this type of strategy in 2020. We’ll walk
我详细解读其中一部分模型,并给出具体例子。
through a subset of the models in detail and I’ll provide concrete examples
用一只具体的股票及其基本面来演示这些方法是如何
using a specific stock and the fundamentals to demonstrate how these
策略确实奏效。
strategies actually work.
那么,我们首先要看的第一种模型是价值复合模型,
So, the first model we’re going to look at is the value composite model, which
基于詹姆斯·奥肖内西在《什么策略有效》中的研究与著述。
is based on the research and writing of James O’Shaughnessy in What Works
在华尔街。《华尔街制胜之道》一书中,奥肖内西对 45 个
on Wall Street. In What Works on Wall Street, O’Shaughnessy back-tested 45
多年来的股市数据,来自全面的标准普尔公司(Standard & Poor’s)。
years of stock market data from the comprehensive Standard & Poor’s
我对定量研究的热爱,就是那种用 Compustat 数据库去挖掘哪些定量策略行得通的劲头——我至今乐此不疲。
Compustat database to find out which quantitative strategies have worked
多年来,哪些做法行之有效,哪些并非如此。这本书首次出版时
over the years and which haven’t. The original publication of the book was
1996 年,那是很久以前了。但自那以后,奥肖内西继续
1996, so quite a long time ago. But since the, O’Shaughnessy has continued
出版包含更新策略和更长期数据的新版本。我确实
to publish new editions with updated strategies and longer-term data. I really
我认为,如果有人对这类量化模型感兴趣,那么这
think if anyone’s interest in sort of these type of quantitative models, this is
这真是一本必读之书。书中包含了大量关于各类因素的优质长期数据。
really a must-have book. It’s packed full of great long-term data on factors and
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这些因素同时发挥作用时会是什么情形。大多数投资者
how these factors worked when combined together. When most investors
听到“价值投资”这个词,很多人以为我们是在寻找低
hear the word “value investing,” many think we’re looking for stocks with low
市盈率、低市净率或市销率——这些指标当然可能构成一个
PE ratios, low price-to-book, or price-to-sales ratios, and that can certainly be a
但奥肖内西的研究表明,你可以提升
start, but what O’Shaughnessy’s research showed is that you can improve the
同时使用多项价值指标对价值因子进行测试的结果。
results of the values factor by using multiple value metric simultaneously. So
我们不想只用一个,而是要用多个。我们想把它们结合起来。
rather than just one, we want to use more than one. We want to combine
把两者结合起来。所以,策略的第一步是剔除质量最低的标的。
them together. So, the strategy starts out by filtering out the lowest quality
市场中剩下最便宜的股票。然后,它会从中选出股价最低的股票。
stocks in the market. It then selects the least expensive stocks remaining using
一个价值综合排名,我来解释给你听。其来源及
a value composite ranking, which I’ll explain to you. The source and the
正如我解释过的,证据来自《华尔街致胜法则》(What Works on Wall Street)一书。
evidence, as I explained, is based on What Works on Wall Street, where
奥肖内西把这一方法回溯测试到了 1964 年。那么,从 1964 年到 2009 年,他的
O’Shaughnessy tested this approach back to 1964. So, from 1964 to 2009, his
价值复合投资组合在回测中取得了 18% 的回报率,而同期仅为 11.2%。
value composite portfolio returned 18 percent in the back test versus 11.2
对所有股票而言,百分比是……在 Validea 上,我们也追踪一个非常集中的、
percent for the all stock universe. On Validea, we also track a very focused,
价值复合型模拟投资组合,而从 2008 年开始,这是我能追溯到的年份。
value-composite model portfolio, and since ’08, which is how far we’re able to
你回去追踪一下就会发现,这个投资组合实际上是我们表现最好的价值类持仓之一。
go back and track it, the portfolio is actually one of our better-performing value
模型,且在此期间的年均增长率达到 18%。投资逻辑
models and is up 18 percent annually over that time. The investment thesis
在这里,我认为,原因在于很多价值股和价值策略已经
here, I think, for this is that many value stocks and value strategies have
在过去十年中颇为挣扎。尽管我们所依据并执行的策略是
struggled over the last 10 years. Even though the strategy we base and we run
基于价值投资策略表现优异,许多价值投资策略和价值股…
based on the value composite has done well, many value strategies and stocks
但我们同样清楚,价值与市场表现之间存在周期性。
have not. But we also know that there’s a cyclicality between value over
增长和增长压倒价值,自 2019 年夏末秋初以来,
growth and growth over value, and since the late summer, early fall of 2019,
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我们实际上已经开始看到价值股阵营表现得更好了。
we’ve actually started to see better performance out of the value cohort of
股票,所以如果这种情况继续成为现实,我认为这类策略可能会
stocks, and so if that continues to materialize, I think this type of strategy could
成为这种价值逆转的受益者。
be a beneficiary of that turn in value.
那么,现在开始谈谈策略,价值综合要素的第一部分。
So, kind of moving into the strategy now, the first part of the value composite
方法是剔除最垃圾的股票。所以,我们要做的就是
method is to remove the junkiest stocks. So, what we want to do here is we
我们要剔除那些可能是价值陷阱的股票,那些看起来像
want to remove the stocks that could be value tracks, stocks that look like
它们的价值还在,但出于这样那样的原因,价值已经被永久性地损害了。
they’re value, but they’re permanently impaired for one reason or another. In
为了实现这一点,我们层层叠加了多重检查机制,包括降低预期……
order to do this, we layer in a number of checks, including declining expected
未来的盈利,与盈利增长不匹配的现金流,高水平的
future earnings, cashflow that’s not keeping up with earnings, high levels of
债务水平很高,相对实力非常弱。在这之后,排名垫底的那 10% 的公司,
debt, and very low relative strength. From there, the bottom 10 percent,
基于我们的综合质量评分,不合格的无法进入下一步。
based on our combined quality score are not eligible to go onto the next step.
剩下的这些股票,我们会用多种价值视角来审视。
Those stocks that remain are then looked at through multiple lenses of value.
所以,这个模型考察的是市净率、市销率、
So, this model is looking at the price to book, the price to sales, price to
收益、市值与现金流之比,以及企业价值/息税折旧摊销前利润(EV/EBITDA),然后它会整合这些数据。
earnings, price to cashflow, and an EV/EBITDA, and then it does integrate
股东收益率旨在提升该策略的表现。
shareholder yield to improve the performance of the strategy. And
奥肖内西在他的书里指出,当你审视这些价值因子时——
O’Shaughnessy points out in his book, when you look at these value factors
随着时间推移,表现最佳的价值因子会不断变化,某一年可能是
over time, the best performing value factor changes, and one year it might be
价格与销售收入的比率,在另一个时期,也可能是企业价值与息税折旧摊销前利润的比率(EV/EBITDA)。
the price-to-sales ratio, in another period it might be enterprise EV/EBITDA.
所以,这种复合型价值模型通过以下方式处理这种博弈——
So, the combined value composite type of model manages this jockeying by
通过这一系列不同的价值标准来给股票打分。你还会注意到,
scoring stocks through this series of distinct value criteria. You’ll also notice,
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我认为这一点非常重要——不同的财务报表是
and this is I believe very important, that the different financial statements are
体现在这些比率上的就是如此。所以,通过市净率来看资产负债表,
represented here in these ratios. So, the balance sheet via price-to-book,
损益表通过市销率和市盈率来衡量,现金流,企业
income statement via price-to-sales and price-to-earnings, cashflow, enterprise
价值、企业价值/息税折旧摊销前利润(EV/EBITDA)和市现率。股东收益率也被纳入其中。
value, EV/EBITDA, and price-to-cashflow. Shareholder yield was included
因为这有助于优化策略的表现,就像我说过的。
because it helped improve the performance of the strategy, as I mentioned.
这些因素在筛选和构建中的运用方式
The way that these factors can be used in terms of screening and building a
你重点关注的可投资股票集合,本质上就是打分——构建一个组合。
focus investible set of stocks is you basically score -- you create a composite
好了,那么你要做的就是算平均分,然后按分数从高到低排个序。
score. So, what you do is you average the score, you order rank all of the
价值指标——比如市净率、市销率——你可以构建一个综合指标。
value metrics -- so price-to-book, price-to-sales -- you can create a composite
得分。那么你接下来要做的,就是只挑选出最好的一个到两个。
score. And then what you do is you only want to select the best one to two
在综合评分中得分最高的股票所占的百分比。所以,
percent of stocks that score highest according to that composite score. So,
你真正要做的是把精力集中在那些最优质的、回报最好的机会上。
you’re really trying to focus in on the very best opportunities that get the best
在所有那些价值指标的得分上,我们平均排在中间。
scores on average across all of those value metrics.
我们来看一个例子。这里很快地看一下大都会人寿。
Let’s look at an example. We’re going to look at MetLife here very quickly.
美国大都会人寿在其所处数据库的质量排名中处于第 58 百分位。
MetLife is in the 58th percentile of our database in quality. So, it meets that
质量筛选完成,这样我们就可以进入策略的下一部分。然后我们
quality screen, so we can move on to the next part of the strategy. We then
看一下市净率、市销率、市盈率、市现率以及股价。
look at price-to-book, price-to-sales, PE, price-to-cashflow, and price
EV/EBITDA、股东收益率(shareholder yield)。在此基础上,我们得出一个综合排名。
EV/EBITDA, shareholder yield. From there, we get a combined ranking based
以上所有因素的综合考量,本质上就是复合评级的含义。
on all of the factors above. That’s essentially what a composite ranking is, and
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当我们在那样做时,大都会人寿(MetLife)实际上排在我们所有持股的收益率的第一个百分位里。
when we do that, MetLife is actually in the first percentile of all stocks in our
价值股领域。
value stock universe.
进入下一个类别,我们要看一下我们的执行情况。
Moving into the next category, we are going to look at our implementation of
我们基于《巴菲特学》(Buffettology)这本书,构建了这个以沃伦·巴菲特为原型的模型。
the Warren Buffett-based model, which we based on the book Buffettology.
当然,沃伦·巴菲特其实从未完全公开过他确切的投资细节。
Of course, Warren Buffett has never really fully disclosed his exact investment
方法,而且他大概也没有一套精确的公式化投资
approach, and he probably doesn’t have an exact formulaic investment
方法。但如果我们真的想效仿并抓住它,我们又该怎么做呢?
approach. But if we did try to emulate and capture it, how might we do that?
我们知道他是在买入上市股票还是直接收购公司。巴菲特
We know whether he’s buying public stocks or companies outright. Buffett is
我们真正想做的,是用合理且公道的价格买入优秀的企业。
really trying to buy great companies at a reasonable and fair price with the
希望它们能成为长期的复利机器。如果我们试图
hope that these will be long-term, compounding machines. If we were to try
为了从量化角度捕捉伟大公司的概念,我们该如何着手呢?
to capture the concept of great companies quantitatively, how might we go
关于如何做到这一点?我们怎样才能发现具有这些特征的公司
about doing that? How could we uncover companies with the characteristics
那些业务周围有竞争护城河的公司?为了找到这样的公司
that have competitive moats around their business? In order to find those
公司——我认为这是我希望你们从中获取的核心洞见
companies -- and I think this is the key insight I’d like you to take from this
模型——在于你可以观察到增长的长期一致性,以及
model -- is that you can look at the long-term consistency in growth and
我们可以参考每股收益以及长期净资产收益率和资本回报率来辅助判断。
earnings along with the long-term returns on equity and capital to try to help
我们希望找到那些业务周围有竞争护城河的公司。所以,
us find companies that have competitive moats around their business. So, to
出发时,这一策略寻求的是长期可预测盈利性的企业。
start out, this strategy looks for firms with long-term predictable profitability
以及相对于利润而言负债较低、估值合理的公司。
and low debt relative to profits that trade at reasonable valuations. The model
他会回溯长达十年的公司历史,从中挖掘出那些信息。
goes back as far as a decade to look into a company’s history to uncover those
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拥有业务护城河的股票。这些护城河的来源是什么
stocks with competitive moats around their business. What is the source and
这一说法的证据何在?自 1965 年以来,巴菲特创造出了最为非凡的投资业绩之一。
evidence for this? Well, since 1965, Buffett has one of the most phenomenal
过去形成的业绩记录,在长达 53 年的时间里,以 20.5% 的年化复合增长率增长。
track records ever generated, compounded at 20.5 percent over the last 53
年。有意思的是,我们那套受巴菲特启发的策略,确实取得了成绩。
years. Interestingly enough, our Buffett-inspired strategy actually scored
2015 年苹果公司(的股价上涨了)100%,那是在巴菲特买入之前整整两年。
Apple 100 percent in 2015, which was two full years before Buffet and
伯克希尔当时正在买入这只股票。很多人或许知道,苹果现在
Berkshire were buying the stock. As many people may know, Apple is now
伯克希尔最大的公开持股。我们依据巴菲特模式运行的投资组合,
Berkshire’s largest public holding. Our Buffett-based model that we run,
2019 年 Validea 上最优策略的收益率是 36%。伯克希尔
which is the optimal strategy on Validea in 2019 was up 36 percent. Berkshire
哈撒韦这只股票本身去年表现并不好,我不是
Hathaway itself, that stock, didn’t have a great year last year, and I’m not
我绝不是说这个模式可以替代伯克希尔·哈撒韦的股东们。
saying this model is a substitute whatsoever for Berkshire Hathaway holders,
但在策略能够实现的成果上,仍然存在巨大差异。
but still there was a big difference in terms of what our strategy was able to
采用巴菲特这个模式,以及伯克希尔·哈撒韦的表现
pick up using this Buffett model and the performance of Berkshire Hathaway in
2019.
2019.
投资逻辑,你可以说,采用这样的策略,你就是在
The investment thesis, you could say that using a strategy like this, you’re
以折扣价买入优质股票,这能让你获得一条波动更小的投资路径。
buying high quality stocks at a discount, and it gives you a less volatile way to
看一看价值股长期跑赢市场的表现,也许你会发现,你正在
access the outperformance of value stocks over time, and maybe if you’re
运气——也许我们在苹果上确实走了运。这里面当然有运气的成分。
lucky -- which maybe we got lucky with Apple. There was certainly some luck
但那套系统确实识别出了它。或许遵循这样的策略——
in there, but the system was picking it up. Maybe fallowing a strategy like this
会让你在巴菲特实际买入之前,就找到类似巴菲特风格的股票。
will allow you to find Buffett-like stocks before he actually buys in.
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现在,让我们更详细地审视这个实际模型。第一步,正如我
So now, let’s look at the actual model in some detail. The first step, as I
如上所述,巴菲特希望看到的是长期、稳定、可预测的盈利。
mentioned, Buffett wants to see consistent long-term predictable earnings.
所以,这个模型会回溯过去 10 年,看利润是否在随时间增长。
So, the model goes back 10 years to see if profits are growing over time and
一致的。在多个十年期的时间段里,你会看到经济扩张和
consistent. Over many 10-year periods, you’ll see economic expansions and
经济收缩,所以我们会让你了解一家公司的利润如何应对
contractions, so we’ll give you a sense of how a company’s profits react to
经济衰退与竞争。通过审视过去 10 年的
economic downturns and competition. By looking at 10 years worth of
收益,有助于让巴菲特对其未来的盈利能力更有信心。
earnings, it helps give Buffett confidence in the future earnings power of the
公司。巴菲特直到最近才避开科技股的一个原因是
company. One reason Buffett avoided technology stocks up until recently is
他不仅无法完全理解这些业务,而且它们的盈利也高度
that he didn’t fully understand them, but also that their earnings were highly
不稳定的,而他希望看到的是更稳定的盈利。其次,他想要的是……
variable, and what he likes to see is more consistent earnings. Next, wants to
所以我们更看好那些能够持续获得高于平均水平的长期净资产收益率和资本回报率的公司。
see higher-than-average long-term returns on equity and capital. So, the
模型考察的是 10 年的净资产收益率(ROE)和资本回报率(ROC),对于金融类公司则看资产回报率。如果一家
model looks at 10 years of ROE and ROC or return on assets for financials. If a
如果一家公司长期拥有高于平均水平的净资产收益率和资本回报率,这就说明……
company has long-term, above-average return on equity and capital, this
这表明该公司周围存在一定程度的竞争护城河。
indicates that there’s a competitive moat to some extent around the business.
护城河可能是一个强大的品牌,也可能体现在低成本优势上。
It could be a strong brand name. They could be a low-cost producer. They
可能是那种收费桥式的公司。但关键在于他们做的业务和
could be a toll bridge type company. But something about what they do and
公司保护了利润,并使其高于平均水平。
the company has protected profits and allowed them to get above-average
回报率。巴菲特也不喜欢过高的债务。他希望看到收益
returns. Buffett also doesn’t like too much debt. He wants to see the earnings
能够在合理的时间内还清。所以,如果债务能够还清
can be paid off in a reasonable amount of time. So, if debt can be paid off
用五年的盈利就能回本,那已经很不错了。这个模型倾向于这种模式。
with five years worth of earnings, that’s good. The model favors that.
需要投入过多资本开支的企业,其回报往往并不如人意。
Businesses that have to invest too much in capital expenditures aren’t as
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那些不具备这种特征的便相形见绌,因此,这一模式会奖励正向的自由现金流。
appealing as those that don’t, so as a result, this model rewards positive free
现金生成能力。回购是另一个积极因素。所以,这个模型想要……
cash generation. Share buybacks are another positive. So, the model wants to
我看到有些公司在回购股票,希望它们是在公平合理的价位上进行的。
see that companies are buying back shares at hopefully fair and reasonable
价格。接着它会审视留存收益,它希望看到这些留存
prices. It then looks at retained earnings, and it wants to see that retained
收益一直为利润做出贡献。因此,我们运行的模型以总额为基础
earnings have contributed to profits. So, the model we run takes the total and
过去 10 年的留存收益,并将其与总收益进行比较
retained earnings over the past 10 years and compares it to the total gain and
在那同一时期,每股收益(EPS)。然后判断价格是否合理,运用
EPS over that same period. And then to determine if the price is right, using
两种不同的方法,即 ROA 和 EPS 方法,它正在试图
two different methods, the ROA and the EPS method, and it’s trying to
计算预期未来回报。而这个模型本质上寻找的是
calculate the expected future return. And what this model essentially looks for
是那些有潜力实现至少 12% 年化复利增长的股票。
is stocks that are going to have the potential to compound out at at least 12
随着时间的推移,年化复合增长率达到……
percent annually over time.
下面是一个巴菲特模型的例子,我就拿苹果公司来说吧。
So, here’s an example of the Buffett model, and I’m going to stick with Apple
因为我们的模型仍给苹果很高的评价,实际上是非常高。我不认为它是百分之百。
because our model still rates Apple, actually, very highly. I don’t think it’s 100
百分比。大概是 93% 吧。在 0 到 100% 的区间内。
percent. It might be like 93 percent. It’s on a scale of zero to 100 percent that
我们给每只股票打分。所以,在这个案例中,我们可以在这里看到过去 10 年的表现。
we score each stock. So, in this case, we can see here’s the 10 years of
苹果的盈利。该模型确实考虑到了盈利下滑的情况,事实也的确如此。
earnings for Apple. The model does allow for a dip in earnings, and there was
最近有所回落,但这没关系。增长率依然相当、相当不错,而且
a recent dip, and that’s OK. The growth rate is still really, really good, and
根据三年、四年和五年每股收益增长率的平均值计算,大约为 10%。
based on the average three-, four-, and five-year EPS growth rate, it’s about 10
来审视过去整整十年的情况。
percent. But it does look at the full decade, the last decade’s worth of
利润,而且它希望看到持续增长且稳定的利润。然后它继续往下看。
earnings, and it wants to see growing, consistent earnings. It then goes down
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巴菲特:要说“好,那这家企业有没有护城河,看看净资产收益率就知道了”
to say, “OK, is there a moat around the business looking at return on equity
以及资本回报率”,这两项指标均远高于股市的平均水平。
and return on capital,” which are well above what the average is in the stock
市场大约在 12% 到 13% 左右。我的意思是,我们……
market, which is around maybe 12 percent or 13 percent. I mean, we’re
关于净资产收益率和资本回报率,这里分别提到 49% 和 28%。
talking 49 percent, 28 percent on ROE and ROC respectively here, so that’s
确实不错。它接着说,你知道,“盈利能否偿还债务?”所以,苹果
really good. It then says, you know, “can earnings pay down debt?” So, Apple
有 920 亿美元的债务,每年能产生 530 亿美元的利润,所以这个
has 92 billion in debt, and it’s generating 53 billion a year in earnings, so that
可以在不到两年的时间内还清,这非常不错。它正在产生
can be paid down in less than two years, which is very good. It’s generating
正的自由现金流。这是利好。已发行股份实际上
positive free cashflow. That’s a positive. Shares outstanding has actually
下降了,因此苹果已将其流通股数量从 55 亿股减少至 45 亿股。
fallen, so Apple has reduced the share count from 5.5 billion to 4.5 billion over
过去 5 年。那么问题就是,“管理层是否做得很好
the last five years. And then the question is, “Has management done a good
问题在于:留存收益能否带来回报?基于我们的分析,
job in generating returns on retained earnings?” And based on our analysis
该模型所反映的情况,似乎表明管理层已经展现出其有能力……
and what’s captured in this model, looks like management has shown it can
在留存收益上产生 16.4% 的回报。最后,使用
generate a 16.4 percent return on retained earnings. And then lastly, using
你之前提到的那两种方法,它说,你知道,“什么样的
those two methods I talked about before, it says, you know, “What type of
给定这些历史基本面数据和增长率,我能预期获得怎样的回报?
return could I expect given these past fundamentals, and growth rates, and
未来盈利预期是多少?而我们的模型预测的是 13.7。
earnings expectations in the future?” And our model is predicting a 13.7
我的一段译文如下:
在苹果上获得的百分比回报,足以让它通过这一策略的检验。
percent return on Apple, which is enough for it to pass this strategy very
Strongly. 所以,这就是巴菲特策略的一些细节。
strongly. So that’s the Buffett strategy in some detail.
下面我想带你们看的第二个模型,是关于我们的质量和良率。
The next model that I’d like to walk you through is in our quality and yield
类别,我们要做的是看一个模型,它
category, and what we’re going to do is we’re going to look at a model that
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奖励低波动性和保守的股票。所以,这很有趣。
rewards low volatility and conservative stock. So, this is interesting. The
这里的基本洞见是:将低波动率股票与其他股票组合在一起,
fundamental insight here is that by combining low volatility stocks with other
像动量、高股东收益率或净派息收益率这类指标,你可以
things like momentum and high shareholder yield or net payout yield, you can
实际上,你能获得一种更稳健、持续的投资策略,这种策略依然表现出——
actually get a more robust, consistent investment strategy that still exhibits
该业绩潜力。因此,策略概述是:该模型寻找
that performance potential. So, the strategy overview is this model seeks out
低波动率股票,同时具备强劲的动能和高派息率。
low volatility stocks that have strong momentum and high payout yields. The
这一策略的根源与证据——由一位
source and the evidence behind this strategy -- this was developed by a
欧洲有一位基金经理,名叫皮姆·范弗利特。他写了一本书,书名是
European money manager. His name is Pim van Vliet. He wrote a book called
低风险高回报:一个令人瞩目的股市悖论及其后续启示
High Returns from Low Risk: A Remarkable Stock Market Paradox and a follow-
在研究报告中,保守公式:定量投资之道
on research paper, “The Conservative Formula: Quantitative Investment Made
“简单。” 你可以在 SSRN 上下载这篇内容,并在那里阅读更多。
Easy.” That is available for download on SSRN, where you can read more
关于这个模型。但在范弗利特的著作以及他后续的研究中,他能够
about the model. But in van Vliet’s book and his follow on study, he was able
为了对这种方法进行回测并建立 100 只保守型股票模型
to back-test this approach and develop 100 conservative stock model
投资组合,而且他能从 1929 年到 2016 年间对它进行回溯测试。
portfolio, and he was able to test it from 1929 to 2016, and his back-tested
结果显示,年化收益率为 15.1%,而同期标普 500 指数的年化收益率为 9.3%。
results showed a 15.1 percent annualized return versus 9.3 percent for the
基于回测的市场表现。我们还运行了一个更聚焦的模型组合,该组合基于
market in the back test. We also run a more focused model portfolio based on
在 Validea 上采用这种方法。自 2009 年以来,我们的模拟投资组合产生了
this approach on Validea. Since 2009, our model portfolio has produced a
假设每年 16.7% 的回报率,而后者是每年 13.2%
hypothetical return of 16.7 percent per year versus 13.2 percent per year for
在市场上。我认为这一项背后的投资逻辑是,你知道的,
the market. I think the investment thesis behind this one is, you know,
与人们的普遍看法相反,研究表明,投资低波动股票可以
contrary to belief, research shows that investing in low volatility stocks can
除了降低风险之外,还能提升回报,我想说我们一直——股票
enhance returns in addition to reducing risk, and I say we’ve been -- stocks
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2018 年末的市场波动确实很大。我是说,这种波动……
have not -- well, they were volatility at the end of 2018. I mean, the volatility
最近这个声音似乎有些沉寂了,但我们作为投资者知道,这种情况随时都可能改变。
has sort of been muted lately, but we know as investors that can change at any
在某个时间点上,我认为这类保守型股票应该会更低一些。
point in time, and these types of conservative stock I think should be less
考虑到这些企业的特性,它们的波动性会比市场更大。因此,如果波动性上升,
volatile than the market given their characteristics. So, if volatility picks up,
这些正是应该受益的股票类型。
these are the types of stocks that should be beneficiaries.
那么,我们这里稍微详细地梳理一下这个模型。首先,
So, let’s walk through the model in a little bit of detail here. So, the first thing
我们需要做的是,将市场中市值最大的股票单独划分出来。
we need to do is we want to segment out the largest stocks in the market,
因为那是最保守的所在。所以,这个模型只是
because that’s where the most conservative are. So, what the model just
筛选的逻辑很简单:按市值排队,只保留市值排前一千的公司。
simply does is it screens on market cap and it wants to have only the thousand
在标普 500 指数成分股中,市值最大的几个公司才有资格进入我们的选股范围。
largest names based on market cap to be eligible for our selection universe.
那么它要做的,就是找出那些成交量最低的股票。
What it then does is it wants to identify the stocks with the lowest amount of
波动性。因此,要做到这一点,我们考察回报率的标准差。
volatility. So, to do this, we look at the standard deviation of returns. With this
标准差,那些实际上处于最低 50% 的股票
standard deviation, stocks that actually are in the lowest 50 percent based on
他们的标准差即回报率,正是决定其能否进入下一阶段的关键。
their standard deviation or returns are the ones that make it to the next stage.
从那以后,它希望看到这些股票的价格走势相对于其他股票呈现出强势。
From there, it wants to see stocks are exhibiting price strength relative to other
股票也是如此。所以,这里存在一个短期的动量因素。这一点很明确。
stocks. So, there’s an intermediate momentum factor here. That specific
指标是一个 12 减 1 个月动量指标。我们接下来会讨论。
criteria is a 12 minus one-month momentum criteria. We’re going to talk
关于这一点我稍后再谈,但这正是实际使用的投资筛选标准。
about that in a little bit, but that’s the actual investment criteria used. It sorts
在此基础上,它还会按净派息率进行排序。所以,它看的不仅是
on that. And then it also sorts on net payout yield. So, it’s not just looking at
这里指的是股息率,而是要看股息率加上回购收益率。
dividend yield here. It’s looking at dividend yield plus share buyback yield.
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公司向股东返还现金有两种方式,而
Those are two ways that a company can return cash to shareholders, and it
针对这一点也是在做空。所以,你同时在两个层面做空——你得到的是……
sorts on that as well. So, you’re getting two shorts based on -- you’re getting
一个基于动量,一个基于净派息收益率。结果如何?
one based on momentum, one based on net payout yield. What happens
那么,这里有一个综合排名。所以,还是这个综合排名的概念。
then is there’s a combined rank. So again, it’s this combined ranking concept.
一旦我们有了综合排名,就能看到哪些股票位列前 1%。
Once we have the combined rank, we can see what stocks are in the top one
在这些股票中,最顶尖的只占全部股票的 2%。
to two percent of all stocks in the universe, and from there, those are your top
performers for further investigation. So, here’s an example of a stock that
performers for further investigation. So, here’s an example of a stock that
传递非常强劲:财富品牌(Fortune Brands)和家庭安保(原文拼写如此)。该公司的
passes very strongly: Fortune Brands and Home Security (sic). The company’s
市值是 90 亿美元。这让它跻身我们跟踪的前 1000 只股票之列。
market cap is nine billion. It places it in the top one thousand stocks in our
宇宙。这只股票三年期的标准差为 23.7%,而
universe. The stock’s three-year standard deviation is 23.7 percent versus the
市场报酬率中位数为 31.8%。然后我们依据 12 个月的表现对股票进行排名。
market median of 31.8 percent. We then rank the stock based on a 12-month
减去一个月动量,该项得分为 68.1,处于第十百分位。
minus one-month momentum, which is 68.1. It places it in the tenth percentile
在所有股票数据库中,我们接着按净派息收益率进行排名,该收益率为 4.3%。
of all stocks in the database. We then rank on net payout yield, which is 4.3
17%。这在该数据库所有股票中排名第 17 百分位。
percent. This ranks in the 17th percentile of all stocks in the database. The
综合排名将福布斯家居安防品牌排在 1 到 2 名之间。
combined ranking puts fortune brand home security in the top one to two
percent--
percent--
我们现在进入成长型投资类别。
We’re going to now move into the growth investing part of the categories
现在我们来讲一个基于 Partha Mohanram 的模型。
here, and we’re going to talk about a model based on Partha Mohanram. And
这个模型的目标是寻找具备增长潜力的股票。
what this model is looking to do is looking to identify growth stocks that have
增长的潜力。因此,这里的关键投资洞察是
the potential for continued growth. So, the key investing insight here is that
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虽然这一类股票中的价值股长期来看往往跑赢成长股,
although value stocks in the group tend to outperform growth stocks over long
在相当长的时间段里,表现最好的个股都来自成长型。
periods of time, the best-performing individual stocks come from the growth
市场的一部分。那么我们如何识别这些呢?从宏观层面来看,
segment of the market. So how do we identify these? At a high level, the
策略寻找的是那些账面市值比(book-to-market ratio)较低、并通过某些特征展现出的股票
strategy looks for low book-to-market stocks that exhibit characteristics via
它们的基础状况,以及这些基础状况相关的趋势。
their fundamentals and trends in those fundamentals that are associated with
持续的 未来 增长。正如 我 提到 的,该 模型 基于 Mohanram 的 研究。
sustained future growth. As I mentioned, the model is based on Mohanram’s
学术研究。Partha Mohanram 是多伦多大学的教授。
academic research. Partha Mohanram’s a professor at the University of
多伦多。他写了一篇论文,题目是《从低账面价值公司中区分赢家与输家》
Toronto. He wrote a paper, Separating Winners from Losers Among Low Book-
在华尔街,如果你依赖财务报表分析来评估股票,那你可能会感到失望。
to-Market Stocks Using Financial Statement Analysis. This is also available for
在 SSRN 下载。在他的论文和测试中,Mohanram 成功地将
download on SSRN. In his paper and through his test, Mohanram was able to
从 1979 年到 2001 年,也就是 22 年的时间里,对这个模型进行回测。
construct a back test of the model from 1979 to 2001, so over a 22-year period.
该模型显示回报率为 20.3%,而市场的回报率为 11.3%。
The model showed a return of 20.3 percent versus 11.3 percent for the market.
2006 年以来,我们也在跟踪这种模式。它堪称最好的模式之一。
Since 2006, we’ve been tracking this model as well. It’s one of the very best
Validea 上的表现者。我认为它在很大程度上受益于
performers on Validea. I think it’s benefited to a large extent from the
过去十年左右时间里,成长股的表现一直压过价值股。但在我们的
outperformance of growth stocks over the past 10 years or so. But in our
根据我们的测试和模型表现,该策略已产生了 15.3 的回报。
testing and our model’s performance, the strategy has produced a 15.3
年化回报率 21.4%,同期市场年均回报率 6.8%。
percent per year return versus 6.8 percent for the market over that time frame.
投资理论认为,昂贵股票通常表现不及
The investment thesis that expensive stocks generally underperform the
市场,但通过应用一系列基本面优势与再投资
market, but by applying a series of fundamental strength and reinvestment
你通过标准检验,就能从那些昂贵的公司中识别出表现更优的。
criteria tests, you can identify outperformers among that expensive group. As
我刚才提到,你知道的,在这个市场上,增长一直是个好去处。
I mentioned, you know, growth has been a good place to be in this market
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环境,而且我认为如果这种趋势持续下去——目前看来确实如此
environment, and I think should that trend continue, which it looks like it is
在 2020 年初继续这个趋势——价值股已经略微回落,而成长股则
continuing here early in 2020 -- value has tailed off a little bit and growth has
这种模式在这里开始形成——看来它有望继续从中受益。
kind of picked up here -- this model looks poised to continue the benefit from
that.
that.
于是,莫汉拉姆开发了一套评分系统,称为“G 分数”。而这个
So, Mohanram developed a scoring system called the “g-score.” And what
实际上,它的作用是根据盈利能力、现金流因素来给股票打分,
effectively that does is it scores stocks based on profitability, cashflow factors,
以及再投资标准。因此,G 评分是一个八分制的评分体系,被应用于……
and reinvestment criteria. So, the g-score is an eight-point scale that is applied
对于市场上市净率最高的 20% 股票而言。
to the 20 percent of stocks in the market with highest price-to-book ratios. So,
他对这个世界的最初筛选标准,就是寻找那些基于股价最昂贵的股票。
his initial cut of the universe was looking for the most expensive stock based
在账面市值比的对立面——市净率上,从这一点出发,
on price-to-book, which is the inverse of book-to-market. From there, the
莫汉拉姆使用的投资标准可以分为三类
investment criteria used by Mohanram can be categorized into three different
盈利能力与现金流、业务与盈利的可持续性
buckets: profitability and cashflows, business and earnings durability, and
对企业的再投资。这个模型的首要标准,就是识别出那些
reinvestment in the business. The first criteria in the model is to identify those
最贵的那些股票。所以基本上,这句话的意思就是说,它……
stocks that are the most expensive. So basically, what this says is it says it’s
寻找账面市值比最低的 20% 的那部分股票,
looking for the 20 percent of stocks in the bottom of the book-to-market ratio,
记住,这就是市净率的倒数。所以我们从……开始
which is, remember, just the inverse of price-to-book. So, it starts out by
先从最贵的股票看起。然后,我们再深入一步。
looking at the most expensive stocks first. From there, we want to step into
是的,盈利能力与现金流标准。因此,该模型关注的是资产回报率。
the profitability and cashflow criteria. So, this model looks at return on assets.
它希望看到资产回报率高于行业中位数。现金流来自
It wants to see return on assets above the industry median. Cashflow from
运营对资产的比例高于行业平均水平,随后产生的现金流
operations to assets above the industry average, and then cashflow from
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资产运营效率与资产回报率均高于行业平均水平。
operations to assets versus return on assets above the industry average. One
这个模式独特之处在于,它始终专注于比较与筛选。
of the things that’s unique about this model is the focus on comparing and
将公司与其同行群体进行比较。因此,莫汉拉姆意识到股票
rating companies against their peer group. So Mohanram realized that stocks
不同行业有着各自的特点和动态。因此,要
in different industries have different characteristics and dynamics. And so, to
要处理这个问题,这个模型实际上只把公司与它们所在行业进行比较。
handle this, the model really only compares companies against their industry
同行。模型的下一部分是奖励一致性。那么,这意味着
peers. The next part of the model is to reward consistency. So, what this is
做不到——这个输入不完整,而且没有遵循翻译要求中的格式:这是一个片段,不是完整的段落(没有被空行分隔的段落)。
doing, it wants to look for and identify companies that exhibit consistent
增长,并且更有可能在未来持续这种增长。因此,首先看起来
growth and are more likely to sustain that growth in the future. So first it looks
该公司资产收益率的波动性。它希望看到这一指标低于
at the variance in the firm’s return on assets. It wants to see that below the
行业平均水平,然后它还希望看到销售额的年同比变化。
industry average, and then it wants to see variance in year-over-year sales also
低于行业平均水平。一旦我们做到这一点,我们就可以看看是否……
below the industry average. Once we have that, we can look to see is the
公司是否在为未来投资?他们是否在投资于能够帮助
company investing in the future? Are they investing in areas that can help
我们来看研发支出、资本支出和
generate future growth? So here we’re looking at RND, CAPX, and
广告。例如,模型希望看到研发支出与资产的比率、资本支出与
advertising. For example, the model wants to see RND to assets, CAPX to
资产与有形资产之比,以及广告费用与资产之比,均高于行业平均水平。
assets, and advertising to assets above the industry average.
所以,下面以税务和会计软件公司 Intuit 为例。
So, here’s an example of Intuit, the tax and accounting software maker. It
根据账面市值比(book-to-market)得分处于最低 20% 的股票,
scores in the lowest 20 percent of stocks based on the book-to-market, which
这意味着它处在前 20% 的区间,也就是最昂贵的那一档。所以这表明……
means it’s in the 20 percent. That’s most expensive. So that’s indicating that
它的估值很贵,所以,它可能更像一个增长型公司。
it’s got an expensive valuation, and so therefore, it’s probably a growth-like
公司。我们一直在看资产收益率。资产收益率,加上
company. We’ve been looking at return-on-assets. Return-on-assets, with
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24.4%,这个数字高于行业平均水平。经营现金流
24.4 percent. That’s above the industry average. Cashflow from operations is
26.6%,这个数字高于行业平均水平。接着,它想知道
26.6 percent, which is above the industry average. And then it wants to see
经营性现金流与资产的比率高于资产回报率。
the cashflow from operations to assets is higher than return on assets. So
这是好事。接着,我们看资产回报率的差异。
that’s a positive. We then look at the variance in return on assets. That’s
低于行业平均水平。销售波动也低于行业平均水平。
below the industry average. The sales variance is also below the industry
平均而言。然后它衡量广告支出与资产之比、资本支出与资产之比,以及
average. And then it looks at the advertising-to-assets, CAPX-to-assets, and
RND 占资产的比率。所有这些指标都依据 g 评分来打分。所以,
RND-to-assets. And all of those things are scored based on the g-score. So,
根据这个标准,真正能拿到 100 分满分的股票只有四只,而直觉公司是其中之一。
Intuit is one of only four stocks that actually gets 100 percent according to this
模型。所以,这是一种有趣的增长模型,我认为存在一些因素。
model. So that’s an interesting growth model, and I think there’s some factors
在这其中,有一些独特之处,希望你能从中有所领悟。
in there, there’s some uniqueness in there that hopefully you can learn from
甚至可以在你自己的投资研究中加以运用。
and maybe even utilize in your own investment research.
我们最后要看的一个模式是,我们要找一种识别方法。
The last model we’re going to look at is we’re going to look at a way to identify
某种最纯粹、表现最好的动量股。这大概就是
sort of the purest, best-performing momentum stocks. This is probably the
这个模型之所以最简单,是因为它只用两个标准,但有些人也认为它是……
simplest in that it only uses two criteria, but it’s also a model that some
投资者可能无法真正理解,因为这涉及
investors may not be able to really wrap their head around because it involves
买那些股价已经大幅上涨的股票。这个模型是
buying stock that have already gone up a lot in price. This model was
该段落出自《量化动量》一书,该书由以下作者撰写:
extracted from the book Quantitative Momentum, which was written by
韦斯利·格雷(Wesley Gray)和杰克·沃格尔(Jack Vogel)。他们是 Alpha Architect 的创始人,一家
Wesley Gray and Jack Vogel. They are the founders of Alpha Architect, a
定量投资研究公司。这里的关键投资洞见在于,如果
quantitative investment research firm. The key investing insight here is that if
如果要把动量作为选股过程的一部分,那最好是在
you’re going to use momentum as part of your selection process, it’s better to
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寻找那些具有持续动量(momentum)的股票。例如,如果你有两个
look for stocks with consistent momentum. So for example, if you have two
过去 12 个月里涨幅达到 60% 的股票,那只股票
stocks that are both up 60 percent over the past 12 months, the stock that
过去这几个月,月复一月地产生了 4% 到 5% 的回报。
produced that four-to-five percent return month in and month out over the last
在这一年里,相对于一只先涨 80% 再跌 20% 的股票,另一只股票更具吸引力。
year is more attractive versus a stock that is up 80 percent and then down 20
最后两个月增长了 37%。所以,这个模型不考虑任何其他因素。
percent in the last two months. So, the model doesn’t look at anything other
因此,我们更看重股价表现及其一致性。具体来说,我们——
than price performance of stocks and the consistency. So specifically, we’re
从仅剔除最近一个月的一年期动量来看。
looking at the one-year momentum excluding the most recent month. That’s
动量因子标准。然后我们想做的就是找到——
the momentum factor criteria. And then what we want to do is we want to find
在那高动量区间内波动最小的股票
the stocks with the least amount of volatility within that high momentum
小组。正如我提到的,其来源和依据来自定量分析。
group. The source and the evidence, as I mentioned, is Quantitative
动量。在书中,他们能够基于……对策略进行回测。
Momentum. In their book, they were able to back test the strategy based on --
他们回溯到了 1927 年。所以,从 1927 年到 2014 年,这套策略实现了
they went back to 1927. So, from 1927 to 2014, the strategy produced a
模拟收益率 15.8%,而标普 500 指数为 9.2%。
simulated return of 15.8 percent versus 9.2 percent for the S&P 500. And on
Validea 网站采用了我们量化模型的一个高度聚焦版本。
the Validea site, we run a very focused version of our version of Quantitative
我们得以实施的动量模型,在 2019 年成为了我们的
Momentum model that we’ve been able to implement, and in 2019, it was our
在 Validea 上表现最好的模型。它涨了 48%,动量策略。
best-performing model on Validea. It was up 48 percent momentum. Had a
去年是个好年份。这背后的投资逻辑,我认为是——
good year last year. The investment thesis behind this, I think, is that
动量是一个稳健的因子,这一点已在学术上得到验证,而且在实践中也……
momentum is a robust factor. It’s been proven academically. And it’s also
近年来势头相当强劲。所以,我认为如果你要利用
been pretty strong in recent years. And so, I think if you’re going to utilize
动量,用一套清晰的策略,专注于这两个变量就能实现。
momentum, utilizing a clean strategy and looking at these two variables could
在今天市场环境中会很有用。那么,首先,这一策略着眼于
be useful in today’s market environment. So, to start, this strategy looks at
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一年动量指标,如我前述,且不包含最近一个月份。
one-year momentum, as I mentioned, and it excludes the most recent month.
因此学术研究表明,股票动量往往具有持续性。
So academic research has indicated that stock momentum tends to persist in
中期而言,但短期和长期都趋于均值回归。
the intermediate term but mean reverts in the short-term and the long-term.
在这种特定策略中,我们要找的是排名前 10% 的股票。
In this particular strategy, what we want to find is the top 10 percent of stocks
使用这个 12 个月减去 1 个月的动量标准。然后我们
using this 12-month minus one-month momentum criteria. What we then
我们要做的是,奖励那些业绩最稳定的股票。
want to do is we want to reward the stocks that have the most consistent
momentum。因此,为了计算这一指标,我们选取交易天数中的百分比,在
momentum. So, in order to calculate this, we take the percentage of days in
前一年股票产生了负回报,然后我们减去
the previous year that a stock has produced a negative return, and we subtract
股票创造正回报的天数占比,然后我们
the percentage of days a stock has produced a positive return, and then we
乘以 12 减一个月动量。数值较低的那个,就是我们得到的结果。
multiply by the 12 minus one-month momentum. The lower number gives us
结果更理想,更有利。股票随后被排序,排名前 1% 到
the better, more favorable result. Stocks are then ranked, and the top one-to-
根据这一策略,只有 2% 的股票是最佳的。所以,再强调一次,它……
two percent of stocks are the best according to this strategy. So again, it’s
另一个排序系统,是寻找处于动量趋势中的股票。
another order rank ranking system, looking for the stock in that momentum,
强劲势头派最始终如一。
strong momentum camp with the most consistency.
这里我们有 AppFolio。正如我提到的,这相当——为数不多。
Here we have AppFolio. As I mentioned, this is a pretty -- there’s not many
标准。因此,12 个月减一个月动量指标为 93.8%,排名处于
criteria. So, the 12 minus one-month momentum is 93.8 percent. It ranks in
我们数据库中所有股票的第 6 个百分位。然后,该股票根据
the sixth percentile of all stocks in our database. The stock is then ranked by
根据排名来看,这只股票在第二档。
return consistency, and based on that ranking, this stock is in the second
在我们关注的所有股票中,排在百分位前列。
percentile of all stocks in our universe.
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那么,这就是模型的概览。最后我快速讲五点。
So, that is the overview of the models. I just want to end real quickly with five
我觉得讲完之后,用几条我认为重要的提示来收尾,会很有帮助。
tips that I think are important sort of to bookend this with that I think can help
如果你选择使用类似策略,你会成为一名更成功的投资者。
you become a more successful investor if you choose to utilize strategies like
这一点其实只是林奇说过的内容和我们所说过的重新翻版。
this. And the first is really just a rehash of what Lynch said and what we’ve
这段内容基本涵盖了整个演讲,其核心就是——审视自身。
pretty much talked about this entire presentation, which is look at the
财务数据和估值。这样做将有助于消除一些
financials and valuations. By doing this, it will help remove some of the
我们在买卖股票时,我认为,会受到自身情绪偏好的影响。
emotional biases that we have, I think, when it comes to buying and selling
股票。市面上有很多出色的工具可供使用,包括这类工具。
stocks. There’s plenty of great tools out there, including the tools on
菲达利蒂网站(Fidelity.com)就提供这种服务。如果你开始运用系统化的策略,我认为
Fidelity.com that do that. If you do start to utilize systematic strategies, I think
重要的是找到你理解、相信且适合自己的事物。
it’s important to find something you understand, believe in, and fits you as an
投资者。我们之前在把投资分类的那张幻灯片上大致聊过这一点。
investor. We sort of talked about that in that slide with the categorizing of
策略。而且我认为,如果你能做到这一点,你坚持下去的可能性就会更大。
strategies. And I think if you can do that, you’ll have a better chance to stick
当事情变得艰难时,我们该如何应对。我还想到另一个小建议——
with things when things get tough. Another sort of tip I thought might be
有用的做法,你们中有些人可能已经在这样做了,但可以考虑使用一个
helpful, and some of you probably already do this, but consider using a
如果你用筛选工具,筛选出来的共识结果往往就是这样的。当你看到一只股票冒出来的时候,
consensus of screens if you use screens. If you see a stock that pops up on
不同类型筛选器都用上的话,意味着它在多个维度上都得分很高。
different types of screens, that means it’s scoring highly based on multiple
各不相同的事情。所以,我认为如果你看到这种共识,那可能是一件好事。
different things. And so, I think if you see that consensus, it could be a good
如果同一证券同时出现在多台屏幕上,那倒也是一个值得关注的指标。
indicator for the security if it’s popping up on multiple screens simultaneously.
第四点,根本性的选股原则和
The next point, which is number four, fundamental stock selection and
模型远非完美。我认为,如果你要干这种事,那么你……
modeling is far from perfect. I think if you’re going to do stuff like this, you’ve
必须理解使用这些模型的现实情况。这里有两个要点。
got to understand the realities of using these models. So, there’s two points
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这里:第一,我们追踪基于所有这些方法的模拟投资组合。而且我可以
here: one, we track model portfolios based on all these approaches. And I can
我可以肯定地告诉你,没有哪个是永远管用的。实际上
tell you with certainly, none of them work all the time. There are actually
多年表现不佳的情况屡见不鲜,有时这种低迷期还会持续多年。
plenty of periods of underperformance, and in some cases, it can be multiple
因此,这些策略在某些时期容易表现不佳。
years. So, these strategies are susceptible to periods of underperformance
和其他任何事情一样。另一个数据点我想和大家分享的是
just like anything else. The other datapoint I just want to share with you is
即便是最优秀的模型——我们追踪所谓的“准确率评分”,这个指标
even the best models -- we track what we call the “accuracy rating,” which is
这些策略能猜对多少次。所以即使是表现最好的
how many positions these strategies get right. So even the best performing
模型,它们的准确率大约在 60%。也就是说,每十次里面
models, they hit about 60 percent accuracy. So that means out of ten
六个持仓是赢家,但四个最终变成了输家。简单
positions, six positions are winners, but four end up being losers. The simple
事实是,这些方法没有一种能接近 100% 的准确率。
fact is none of these come anywhere close to batting 100 percent accuracy
最后,量化领域存在周期性。
and finding all winners. And then lastly, there’s a cyclicality in quantitative
选股模型就像风格和因子一样,很可能在很多方面也是如此。
stock selection models just like in styles, and in factors, and in probably a lot of
你持有和买入的那些共同基金,过去五年和十年的表现都……
the mutual funds that you hold and buy. The last five and 10 years of the
市场已经见证了许多趋势,成长股跑赢价值股,超大盘股也表现得非常突出。
market has seen many trends, growth stocks over value, mega cap stocks have
表现极为出色。美国在国际市场上占据主导地位。而且很可能
performed extremely well. U.S. has dominated international. And it probably
这似乎显而易见,但这些趋势也会渗透到对模型的影响之中。
seems obvious, but these trends also find their way into influencing models
就像我跟你们聊过的那些公司,以及我们自己在经营的那些公司一样。但另一边……
like the ones I’ve talked to you about and the ones that we run. But the other
这里需要记住一点:因为这些情况会陆续出现
important point to remember there is that because these things come in
只因为过去五年里它一直有效,并不意味着未来还会如此。
cycles, just because something has worked over the last five years doesn’t
这指的是未来五年或十年里什么最有效。
mean it’s going to be what works best over the next five or 10 years.
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那么,我就以此结束我正式的演讲部分。我希望——
So, with that, I’m going to conclude my formal part of the presentation. I hope
希望你在这个过程中有所收获,并且我给你留下了一些你能用得上的东西。
you found this educational and I left you with something you can use and
并把它融入你的选股流程,帮助这个流程对你更有效、
incorporate in your stock selection process to help make it more effective and
对你们来说很高效。非常感谢。
efficient for you. Thank you very much.
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