破除价值与成长中的迷思
破除价值型投资与成长型投资之间的迷思
DISPELLING MYTHS IN THE VALUE VS.
季度信函 2021 年第二季度执行摘要
在价值股经历几个强劲季度之后,过去几个月出现了向成长股的急剧逆转。
本·英克 | 资产配置主管
QUARTERLY LETTER 2Q 2021 EXECUTIVE SUMMARY After several strong quarters for value GROWTH DEBATE stocks, the last few months have seen Ben Inker | Head of Asset Allocation a sharp reversal in favor of growth.
可以理解,这让一些投资者开始质疑价值股的行情是否已经结束。在价值股至少十年来表现最好的两个季度之后,2021 年第二季度,随着成长股领头羊的回归,价值投资是否还有意义——这一质疑在 7 月继续蔓延。实际上,这种逆转始于第二季度末附近。截至 6 月 3 日,罗素 1000 价值指数本季度领先罗素 1000 成长指数 1.6%。而 6 月剩余时间至 7 月底,成长股上涨 11%,价值股下跌 0.7%。坦白说,这足以让一位价值型基金经理做噩梦。不过,虽然这对我们这些押注全球廉价股反弹的人来说无疑令人失望,但这并不特别出人意料。习惯一旦形成就很难打破,而投资者至少已有十年的时间,养成了在不确定性上升时转向美国大盘成长股的习惯。在我一生中价值股表现最好的两个时期——1973 年至 1977 年以及 2000 年至 2002 年——也曾出现过类似的走势。在第一个时期,美国大盘价值股最终跑赢美国大盘成长股 94%;在第二个时期,美国大盘价值股跑赢成长股 114%。然而,在这些价值股表现惊人的时期内,也包含了有记录以来成长股相对于价值股表现最佳的一些月份。事实上,在 1971 年至 2019 年间,美国成长股相对于价值股表现最好的 10 个月中,有 6 个月出现在这两个时期,而这两个时期仅占总月数的大约 13%。¹ 这种在价值股大行情中穿插成长股表现优异月份的模式,可以从图表 1 中看出。
Understandably, this has led some investors to question whether value’s run is over and After two of the best quarters for value in at least a decade, the second quarter of 2021 saw whether value investing makes sense as a return of growth stock leadership and that move continued into July. The reversal actually anything more than a tactical play. While started close to the end of the second quarter. As of June 3, the Russell 1000 Value index the brevity of value’s resurgence has been frustrating, it does provide me with an was 1.6% ahead of the Russell 1000 Growth index for the quarter. The rest of June through excellent opportunity to address some of the end of July saw growth rise by 11% and value fall by 0.7%. It was frankly enough to the objections I hear from investors who trigger nightmares for a value manager. are hesitant to join us in betting strongly on value today. Our conclusion remains that But while this was certainly a disappointment for those of us positioned to benefit from a this is the most compelling opportunity we resurgence in cheaper stocks around the world, it did not come as a particular surprise. have seen for asset allocation alpha since Habits once formed can be hard to break, and investors have had at least a decade to the 1999-2000 internet bubble. develop the habit of turning to U.S. large cap growth stocks amid feelings of rising uncertainty. There were similar moves in the two greatest periods of outperformance of value in my lifetime, 1973-77 and 2000-02. In the first period, U.S. large cap value ultimately outperformed U.S. large cap growth by 94% and in the second, U.S. large value outperformed growth by 114%. But within those astonishingly pro-value periods exist some of the best months for growth relative to value on record. In fact, 6 of the best 10 months for U.S. growth versus value in the period from 1971-2019 occurred in those two periods, which made up only about 13% of the total months.1 This pattern of great growth months in great value runs can be seen in Exhibit 1.
附件 1美国大盘价值股月度回报率对比
EXHIBIT 1MONTHLY RETURNS OF U.S. LARGE VALUE VS.
增长 1971-2019
-5
价值表现最差的 10 个月中,有 6 个月发生在两次价值大反弹期间
-10
-15
从 1971 年至 1979 年,价值股与成长股的定义分别为:在市值最大的 1000 只美国股票中,按市净率计算,最便宜的 50% 与最昂贵的 50%。此数据由 GMO 计算。从 1980 年至 2019 年,表现数据来自罗素 1000 价值指数减去罗素 1000 成长指数。从 1971 年至 1979 年,表现数据为按市净率划分的最便宜 50% 与最昂贵 50% 的对比,样本为市值最大的 1000 只美国股票。源自:罗素投资公司、GMO、Compustat 数据库。
GROWTH 1971-2019 -5 6 of the worst 10 months for value occurred -10 in the two great value rallies -15 From 1971-79 value and growth are defined, respectively, Source: Russell Investments, GMO, Compustat as the cheapest 50% and most expensive 50% of the Top From 1980-2019 performance is for Russell 1000 Value less Russell 1000 Growth. From 1971-79 1000 U.S. stocks on price/book calculated by GMO. From 1980 onwards it is the Russell 1000 Value and Russell performance is for cheapest 50% of price/book versus most expensive 50% of price/book in Top 1000 1000 Growth. U.S. stocks.
破除价值与成长之争中的迷思 | 第 2 页 但即便在价值行情期间,急剧逆转也是常见现象,它们同样可预见地会引发这样的讨论:为什么价值跑赢的阶段是反常的,而这只是一种回归到成长取胜的“正常”模式。由于我们一直收到大量此类观点和提问,在此似乎有必要逐一梳理其中几个。
Dispelling Myths in the Value vs. Growth Debate | p2 But even if sharp reversals are a common occurrence during value runs, they also predictably bring out the arguments as to why the period of value outperformance was the anomaly and this is merely a return to the “normal” pattern of growth winning. As we have been getting plenty of such arguments and questions, it seems worthwhile going through a few of them here.
“论点一:价值股的超额表现源于经济重启,而这一进程已基本完成,甚至可能发生逆转。没有这一顺风,成长股应会再度领跑。
“ Argument 1: Value’s outperformance was due to an economic reopening, which is largely done or is going to reverse. Without that tailwind, growth should lead again.
……没有通用的答案:去年秋天疫苗试验消息传出后开始的疫情复苏交易,确实对价值股有利。这在一定程度上是因为价值股通常比成长股更具周期性,但更重要的原因是,受新冠疫情严重打击的市场板块,因其表现不佳而被归入了价值股范畴。一场预示着经济低迷时期结束、或承诺从社交隔离世界中解放出来的事件,对这些板块来说自然是大利好。但在经济低迷时期,并不存在成长股跑赢价值股或反之的普遍规律。图表 2 展示了自 1971 年以来,价值股减去成长股的表现与季度 GDP 增长之间的关系。
…there is no general Answer: The reopening trade that began with the vaccine trial news last fall was certainly good for value. This is partially because value stocks may be slightly more cyclical than pattern that growth growth stocks in general, but much more because sectors of the market that were severely outperforms value in hit by COVID wound up in value by virtue of their underperformance. An event that bad economic times or promised a reprieve from the socially distanced world was going to be great for those vice vera. sectors. But there is no general pattern that growth outperforms value in bad economic times or vice versa. Exhibit 2 shows the relationship between the performance of value less growth and quarterly GDP growth since 1971.
附件 2美国价值股与成长股表现对比季度 GDP 增长 4.0% 3.0% 2.0% 0.9% 0.7% 1.0% 0.3% 0.0% -1.0% -0.3% -0.2% -2.0% -3.0% -4.0% 低于 -2% 介于 -2% 和 0% 之间 介于 0% 和 2% 之间 介于 2% 和 4% 之间 高于 4% “……没有广泛理由相信价值股需要强劲的经济增长才能表现良好。”数据来自 1970–2020 年 | 来源:GMO、经济分析局如果说有什么规律的话,那就是价值股在经济衰退中往往略微表现更好。另一方面,两个序列之间的整体相关性仅为微不足道的 -0.07,所以我告诫不要对此过度解读。但可以肯定的是,没有广泛理由相信价值股需要强劲的经济增长才能表现良好:过去 50 年中的两次价值股大反弹都包含了衰退时期(1973–75 年和 2001 年),而衰退并未阻碍价值股的势头——在这两次衰退中,价值股以年化 15% 和 8% 的幅度跑赢成长股。²论点二:利率再次下行,而价值股只是利率上升时的交易策略。
EXHIBIT 2PERFORMANCE OF U.S. VALUE VS. GROWTH AGAINST QUARTERLY GDP GROWTH 4.0% 3.0% 2.0% 0.9% 0.7% 1.0% 0.3% 0.0% -1.0% -0.3% -0.2% -2.0% -3.0% -4.0% Less than -2% Between -2% Between 0% Between 2% Above 4% and 0% and 2% and 4% “ …there is no broad reason to believe that Data from 1970-2020 | Source: GMO, Bureau of Economic Analysis There is, if anything, a slight tendency for value to outperform in economic downturns. On value stocks require the other hand, the overall correlation between the two series is an insignificant -0.07, so I would caution against making too much of that. But certainly there is no broad reason to robust economic growth believe that value stocks require robust economic growth to do well: both of the great value to do well. rallies of the last 50 years contained recessions (1973-75 and 2001) and neither knocked value off its stride, with value outperforming growth by 15% and 8% annualized in those two recessions.2 Argument 2: Interest rates are falling again, and value is simply a play on rising rates.
我在今年早些时候一篇题为《价值与成长的存续期》的文章中,花了不少篇幅来论证为什么这个观点经不起基本面检验。但在短期内,尽管从经济角度价值股与成长股理应同样受贴现率影响,但看到债券收益率下降与成长股跑赢大盘同步发生,并不令人意外。 Exhibit 3 展示了一张长期相关性图表,反映价值股与成长股的表现对比,以及债券收益率的变化。
Answer: I spent a good deal of time discussing the underlying fundamental reason we think this argument doesn’t hold up under fundamental examination in a piece earlier this year entitled “The Duration of Value and Growth.” But in the near term, despite the economic The absolute numbers are 21% for the 1973-75 recession and 5% for the 2001 recession, but as the 1973-75 rationale for value and growth stocks to be similarly impacted by discount rates, it’s hard to recession lasted well over a year and the 2001 recession be surprised that falling bond yields coincided with outperforming growth stocks. Exhibit 3 significantly less than a year, annualizing felt a fairer shows a chart of the longer-term correlations between the performance of value stocks versus comparison. growth and changes in bond yields.
破除价值与成长之争中的迷思 | p3 图 3:债券收益率变化与价值股 vs. 成长股收益之间的 36 个月相关性 100% 50% 0% -50% -100% 1980 1983 1986 1989 1992 1995 1998 2001 2004 2007 2010 2013 2016 2019 截至 2021 年 6 月 30 日 | 数据来源:GMO。美国价值股与成长股分别由 MSCI 美国价值指数和 MSCI 美国成长指数代表。债券收益率变化基于 10 年期美国国债收益率。
Dispelling Myths in the Value vs. Growth Debate | p3 EXHIBIT 3: 36-MONTH CORRELATION BETWEEN BOND YIELD CHANGES AND VALUE VS. GROWTH RETURNS 100% 50% 0% -50% -100% 1980 1983 1986 1989 1992 1995 1998 2001 2004 2007 2010 2013 2016 2019 As of 6/30/21 | Source: GMO U.S. Value – Growth represented by MSCI U.S. Value and MSCI U.S. Growth indexes. Bond yield changes based on 10-Year Treasury yields.
长期来看,债券收益率变动与价值股表现之间的相关性略微为负,但最近几年呈现出相当强的正相关性。如果历史可以作为指引,这种倾向随时可能发生转变;但如果投资者已被训练得预期这种相关性会持续,那么它很可能还会再延续一段时间。
In the long run, the correlation between bond yield changes and value’s performance has been slightly negative, but recent years have seen a pretty strongly positive correlation. If history is a guide, this tendency is subject to change at any time, but if investors have been conditioned to expect such a correlation, it could easily persist for a while.
不过,就价值股的前景而言,这种持续的关联性只有在您认为债券收益率会继续下降时才构成问题。即便在过去 36 个月中,债券收益率的变动也只解释了价值股与成长股之间回报差异的 20%。虽然这一模式的延续意味着——在收益率下降时对价值股构成轻微逆风,在收益率上升时则带来顺风——但很难论证为什么利率从此处必然会下降,或者为什么有人愿意围绕这一假设来构建股票投资组合。
With regards to the outlook for value stocks though, this continued correlation is only a problem insofar as you believe bond yields will continue to fall. Changing bond yields even over the last 36 months have explained only 20% of the variance of returns between value and growth. While a continuation of that pattern would mean a slight headwind for value given falling yields and a tailwind given rising yields, it’s hard to make an argument as to why it is inevitable that rates should fall from here, or why anyone would want to structure an equity portfolio around that assumption.
论点三:如今的商业模式已经让大部分会计数据变得无关紧要,因此,凭借市盈率或市净率这类过时指标来做投资,岂不是徒劳之举?
Argument 3: Today’s business models have rendered most accounting data irrelevant, so isn’t investing on the basis of obsolete measures like P/E or price/book a fool’s errand?
在 GMO,我们对这个论点比对前两个要认同得多。GAAP 会计准则未能跟上那些更依赖无形资产而非有形资产的商业模式,这确实不争的事实。值得记住的是,即使在前互联网(及股票回购前)时代,账面价值对“真实”经济资本的反映也远非完美,而如今它显然更加漏洞百出。我们认为,正确应对这一问题的方式,并非放弃价值投资风格,而是构建更好的价值模型。GMO 的全球股票团队耗时 4 年,苦心重建了超过 1 万家公司、跨越 40 多年的资产负债表和利润表,将被我们认为本应视为投资的支出资本化,并抹平数十年股票回购造成的扭曲。这不仅让我们得到了改进后的基于会计的估值模型——我们相信它比那些用于构建风格指数的指标所体现的内容更贴近经济现实——而且,我们还利用这些具有经济相关性的数据,构建了一个前瞻性的股息贴现模型,我们认为该模型也能够区分哪些公司值得为未来增长潜力付出高价,哪些仅仅是被高估。
Answer: Here at GMO we’ve got a good deal more sympathy for this argument than the first two. The fact that GAAP accounting hasn’t kept up with business models that are more dependent on intellectual property than tangible assets is unquestionably true. While it is worth remembering that book value was a highly imperfect guide to “true” economic capital even in the pre internet (and pre stock buyback) days, it is certainly more flawed now. We think the right response to the problem is not to give up on value as a style but to build better value models. GMO’s Global Equity team spent 4 years painstakingly rebuilding the balance sheets and income statements of over 10,000 companies going back over 40 years, capitalizing expenditures that we believe should have been considered investments and undoing the distortions created by decades of stock buybacks. This has not only given us improved versions of accounting-based valuation models that we believe are far closer to economic reality than what is embodied in the measures used to build style indexes, but we’ve taken advantage of that economically relevant data to build a forward-looking dividend discount model that we believe can also differentiate between companies where it is worth paying up for their future growth potential from those that are merely overvalued.
论点四:价值投资会被价值陷阱所困——那些持续令人失望、长期占据投资组合仓位、让你亏钱的公司。难道这种情形不是永远无法避免吗?
Argument 4: Value investing is hamstrung by value traps – companies that continually disappoint and take up space in the portfolio, costing you money. Won’t that always be the case?
破除价值与成长之辩中的迷思 | p4 答案是:价值陷阱是价值型基金经理必须面对的现实。有时一家看似被低估的公司,结果却是“便宜有便宜的道理”。其基本面恶化的速度超出预期,事后看来,这只股票当初显然远没有看起来那么便宜。但针对价值陷阱的抱怨中,有一点似乎始终不够公平:公司并不非得是价值型股票才会出现低于预期的业绩。实际上,“成长陷阱”——那些以无法实现的增长水平定价的公司——在成长型投资领域中,比价值陷阱在价值型投资领域中的问题更为严重。如果我们把成长陷阱和价值陷阱都定义为那些营收预期令人失望且营收预期被下调的公司,那么从图表 4 中可以看出,这两类公司都始终面临这一问题。
Dispelling Myths in the Value vs. Growth Debate | p4 “ Answer: Value traps are a fact of life for value managers. Sometimes an apparently undervalued company turns out to be “cheap for a reason.” Its fundamentals wind up Value traps are a deteriorating faster than expected and with hindsight it becomes clear that the stock wasn’t actually anywhere near as cheap as it originally seemed. But what has never seemed quite fact of life for value fair in the complaint about value traps is the fact that companies don’t have to be value managers…It turns out stocks in order to have worse than expected results. It turns out that “growth traps” – that “growth traps”… companies that are priced for a level of growth that fails to materialize – are an even bigger are an even bigger problem in the growth universe than value traps are in the value universe. If we define growth traps and value traps as companies that both disappoint their revenue expectations problem in the growth and see their revenue expectations come down,3 we can see that they are an ongoing universe than value problem for both types of companies in Exhibit 4. traps are in the value universe.
图表 4MSCI 美国风格组别中价值陷阱与成长陷阱的占比 1980% 股票落入陷阱的概率 8060% 成长陷阱 40% 价值陷阱或成长陷阱 20% 价值陷阱 0% 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 数据区间:2000 年 8 月至 2020 年 7 月 | 来源:GMO, IBES 多数时候,价值陷阱与成长陷阱的出现频率相当接近,不过有趣的是,在互联网泡沫形成阶段以及泡沫破裂期间,成长陷阱的数量都显著多于价值陷阱。
EXHIBIT 4VALUE AND GROWTH TRAPS AS PERCENT OF MSCI U.S. STYLE GROUPS 100% Probability of Stocks Becoming 80% 60% Growth Trap Value or Growth Traps 40% 20% Value Trap 0% 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 Data from 8/2000-7/2020 | Source: GMO, IBES Most of the time, the prevalence of traps in value and growth are quite similar, although interestingly in both the run-up to the internet bubble and the period of its bursting there were substantially more growth traps than value traps.
但即使增长陷阱至少与价值陷阱一样常见,这只有在它们给持股投资者带来同样痛苦时才重要。事实证明,增长陷阱平均而言甚至更痛苦,正如我们在图表 5 中看到的那样。
But even if growth traps are at least as common as value traps, this only matters if they are similarly painful for investors that hold them. As it turns out, growth traps are even more painful on average, as we can see in Exhibit 5.
展示 5价值与成长陷阱相对表现
关于对令人失望的公司如何正确定义,我们有一些讨论。我不想把股价表现不佳作为定义的一部分,因为那似乎在某种程度上是作弊。考察盈利令人失望的公司比较棘手,因为盈利预测既受到分析师和公司的操纵,而且公司报告的盈利定义也可能与分析师的预测版本不同。销售额在定义上则模糊性小得多。另一方面,单次销售额低于预期似乎不足以体现“陷阱”的含义。因此,我们确定了一个定义,既要求销售额相对于预测令人失望,又要求未来销售额预估出现下调。这个建议要感谢约翰·皮斯。
EXHIBIT 5VALUE AND GROWTH TRAP RELATIVE We had some discussion over the right definition for PERFORMANCE companies that disappoint. I didn’t want poor stock market 2.0 Performance of Value and Growth performance to be part of the definition because that seemed somehow to be cheating. Looking at companies 1.0 whose earnings disappoint is tricky because earnings 0.5 Traps Relative to MSCI U.S. Value forecasts are both gamed by analysts and companies and because the definition of earnings a company reports 0.3 Value Traps might be different than the version of earnings the analysts were forecasting. Sales has much less fuzziness in the 0.1 -9.5% and Growth Indexes definition. On the other hand, single sales disappointment 0.1 Annualized did not seem to do justice to the idea of a “trap.” So we decided on a definition that required both a disappointment Growth Traps -13.0% 0.0 Annualized in sales relative to forecasts and a drop in future sales 1997 2000 2003 2006 2009 2012 2015 2018 estimates. Thanks to John Pease for that suggestion.
1997 年 8 月至 2021 年 7 月的数据 | 来源:GMO、IBEX、Compustat 破除价值与成长之辩中的迷思 | 第 5 页 如图所示,价值陷阱股每年跑输整个价值股群体的幅度高达痛苦的 9.5%,但成长陷阱股每年跑输整个成长股群体的幅度更是惊人的 13.0%。说实话,这并不特别令人意外。毕竟,价值股是投资者对其缺乏信心的公司。它们之所以沦为价值股,多半是因为曾让投资者失望。而成长股则承载着投资者极高的期望,并且通常有满足或超越这些期望的历史。当成长股未能达到这些期望时,它们遭受严惩也就不足为奇了[4]。那么,为什么价值型基金经理总是被追问价值陷阱的问题,而“成长陷阱”这个术语在大众词汇中甚至几乎不存在?我能想到几个原因。第一,当价值型基金经理买入某只股票时,这只股票很可能已经让之前的投资者失望过。问为什么这位经理认为该股票不会重蹈覆辙,这似乎是个完全自然的问题。但我更倾向于第二个原因。当成长型基金经理买入的股票变成了成长陷阱,他/她很可能会卖出它,而价值型基金经理则可能继续持有那只已让人失望的公司,只要其价格已跌至足以补偿前景恶化后的程度。我猜想,最让客户恼火的,恰恰是年复一年在投资组合中看到同样的股票,即便它们已经令人失望之后仍然如此。至于那些似乎无法从错误中吸取教训的价值型基金经理,他们的辩护理由是:这些失望表现的自我相关性非常低。一只股票在某个时期是价值陷阱,与它在下一时期是否还会成为价值陷阱几乎毫无关系,正如我们在图表 6 中所见。
Data from 8/1997-7/2021 | Source: GMO, IBES, Compustat Dispelling Myths in the Value vs. Growth Debate | p5 As you can see, value traps have underperformed the value universe by a painful 9.5% per year, but growth traps have underperformed the growth universe by a huge 13.0%. Honestly, this should not be particularly surprising. Value stocks are, after all, companies that investors do not have a lot of confidence in. As like as not they got to be value stocks because they disappointed investors. Growth stocks, on the other hand, have lofty investor expectations and generally have a history of meeting or exceeding them. When growth stocks fail to measure up to those expectations, it is not a surprise that they are punished severely.4 So why are value managers hounded with questions about value traps and “growth traps” doesn’t even seem to be a term in the lexicon? I can think of a couple of reasons. First, when a value manager buys a stock it is likely to be after it has already disappointed some prior investors. It seems like a perfectly natural question to ask why the manager thinks the stock won’t do it again. But my money is more on a second reason. When a growth manager buys a stock that turns into a growth trap, he/she is very likely to sell it, whereas a value manager might well hold onto a company that has disappointed as long as the price has fallen enough to compensate for the diminished outlook. I’m guessing it is the frustration of seeing the same stocks in the portfolio year after year even after they have disappointed that is most grating to clients. In defense of the value managers who can’t seem to learn from their mistakes, the autocorrelation of these disappointments is very low. The fact that a stock was a value trap in one period has more or less no bearing on whether it will be one in the next period, as we can see in Exhibit 6.
展品 6价值股沦为价值陷阱的概率
100%
36 个月移动平均
80%
60%
平均概率
40%
曾是价值陷阱
20%
非先前价值陷阱
0%
2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
数据来源:2000 年 8 月—2019 年 7 月 | 来源:GMO、IBES
在这段时期内,MSCI 美国成长指数每年跑赢 MSCI 美国价值指数约 2%,这确实会拖累“成长陷阱”的相对表现,因为它们在和一个表现更好的同类比较。但成长陷阱的绝对表现依然明显不及价值陷阱。
某只特定价值股在给定年份成为“价值陷阱”的概率约为 30%。这一结论对前一年曾是价值陷阱的价值股成立,对前一年未获此殊荣的股票也成立。5 但由于 30% 在价值股整体中占相当比例,平均而言,价值型基金经理的组合中约有 9% 的股票会连续两年令人失望,3% 的股票会连续三年。不难想象,看到这类在组合中坐了好几年、已经让投资者亏了不少钱的股票,会有多沮丧。
不过,成长型基金经理也很难把这类股票留在组合里。道理很简单:成长型基金经理卖出那些表现大幅低于预期的股票,是合乎逻辑的。这类公司的成长性确实低于基金经理当初的期望,放在以成长为导向的投资组合中也不太合适。6 但价值股不会因为表现令人失望,就理所当然地不再适合价值型基金经理。别忘了,大多数价值股之所以成为价值股,恰恰是因为它们在某个阶段让投资者失望过。
但成长型基金经理卖出他们的失望股票,并不代表那些成长陷阱没有让他们亏钱。平均而言,成长陷阱几乎肯定让成长型基金经理亏得更多——只不过其中大多数是“新”陷阱,而不是旧陷阱罢了。
“价值 vs. 成长”辩论中的迷思澄清 | 第 6 页
EXHIBIT 6PROBABILITY OF A VALUE STOCK BECOMING A VALUE TRAP 100% 36-Month Moving 80% 60% Average of Probability 40% Previous Value Trap 20% Not a Previous Value Trap 0% 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 4 Data from 8/2000-7/2019 | Source: GMO, IBES Over this period, MSCI U.S. Growth has outperformed MSCI U.S. Value by about 2% per year, which does hurt the relative performance of the growth traps because they The probability of any particular value stock being a “value trap” in a given year is about are being compared to a better performing universe. But growth traps still materially underperformed value traps 30%. This is true for value stocks that were value traps in the prior year, and it is true in absolute terms over this period, falling 7.0% per year whether or not a company had earned the distinction in the prior year.5 But since 30% is versus 4.8% for value traps. a decent fraction of the value universe, on average 9% of the stocks in a value manager’s And just as a reminder, that probability is, if anything, portfolio will have disappointed 2 years running, and 3% for 3 years running. One can modestly lower than the probability of a growth stock being easily imagine the frustration in seeing such stocks sitting in a portfolio that had cost them a growth trap in a given year. money for years. It is harder to imagine such stocks existing in a growth portfolio. But I admit I am caricaturizing growth managers a bit here. here is the basic issue. It really does make sense for a growth manager to sell stocks that There are certainly “growth” managers who will hold onto have significantly disappointed. Such companies are legitimately less growthy than the such stocks either in the belief that the disappointment managers were hoping they would be, and they are a less good fit in a growth-oriented was a temporary problem or that the stock price had fallen portfolio.6 A value stock does not become less of an obvious fit for a value manager just so much that the stock was a buy despite its less growthy prospects, but I do think the basic pattern is fair. because it has disappointed. Remember, most value stocks got to be value stocks because Dispelling Myths in the Value vs. Growth Debate | p6 they disappointed investors somewhere along the line, after all. But just because growth managers sell their disappointments doesn’t mean those growth traps didn’t cost them “ money. On average, growth traps almost certainly cost the growth managers even more, it’s just that most of them are “new” traps instead of old ones.
几乎毫无例外,答案总是第五种论点:成长型公司本质上就是更好的公司,作为长期投资也远比价值股更有道理。你永远别想在价值股上赚到 10 倍回报,而一些成长型股票在过去 20 年里涨幅轻松超过 100 倍。成长型股票才是最伟大的买入并持有标的,它们正在摧毁老公司,并改变世界。回报将来自……答案是:几乎毫无例外,最伟大的买入并持有回报都来自成功的成长型公司。2001 年 7 月 1 日投入亚马逊的 1 美元,在 20 年后会变成将近 267 美元。但即便事后来看,亚马逊成为巨头似乎显而易见,挑选赢家却很难,而且猜错的后果通常很严重。虽然把 20 年前买入亚马逊股票等同于中彩票并不恰当,但两者有一个共同点:对这两种结果进行事后分析,对于判断一般性活动——即购买高价成长股和购买彩票——的回报来说,是一个糟糕的指南。
It is almost invariably Argument 5: Growth companies are simply better companies and make far more sense as long-term investments. You will never make 10 times your money in value stocks, whereas the case that the some growth stocks have risen well over 100-fold in the last 20 years. Growth stocks are greatest buy and hold destroying old companies and are changing the world. returns will come from Answer: It is almost invariably the case that the greatest buy and hold returns will come successful growth from successful growth companies.7 One dollar invested in Amazon on July 1, 2001 companies…But… would have turned into almost $267 20 years later. But however obvious it may appear picking winners is hard in retrospect that Amazon would become a colossus, picking winners is hard and the consequences of guessing wrong are generally severe. While it is not a fair analogy to and the consequences equate buying Amazon stock 20 years ago to the purchase of a winning lottery ticket, what of guessing wrong are the two have in common is that an ex-post analysis of the results from those two outcomes generally severe. is a lousy guide to the return to the general activity – purchasing highly priced growth stocks and purchasing lottery tickets.
无论如何,我们争论的对象并非成长股本身,而是那种“因为未来基本面太过美妙,所以买入时根本不用考虑价格”的观点。当成长股相对于市场的溢价处于相对温和的水平时,我们通常会预测它们会跑赢大盘——从 2004 年秋季到 2015 年年中,我们在美国市场或多或少一直秉持这一判断。当溢价显著宽于历史均值时,我们开始感到不安;而当溢价达到极端水平时,我们便开始怀疑是否已陷入投机狂热。今天的情况在我们看来就是一场狂热。图表 7 展示的是,美国股市中市销率超过 10 倍的股票所占的百分比。
Our quarrel in any event is not with growth stocks per se, but the idea that you can buy stocks without regard to the price you are paying because the future fundamentals will be so wonderful that the price is irrelevant. When growth stocks are trading at a relatively modest premium to the market, we generally forecast that they will outperform, and we did so more or less continually in the U.S. from the fall of 2004 until the middle of 2015.8 When the premium gets significantly wider than historical averages, we start to get nervous, and when we see the premium get to extremes, we start to wonder if speculative mania has set in. Today looks to us like a mania. Exhibit 7 shows the percentage of the U.S. stock market trading at over 10x sales.
图表 7美国股票中市销率超过 10 倍的占比
40%
35%
30%
25%
20%
15%
10%
5%
0%
1980 1984 1988 1992 1996 2000 2004 2008 2012 2016 2020
这一点几乎总是成立,但一只不受欢迎且被低估的股票,表现也可能好得惊人。例如,1968 年将 1 美元投资于奥驰亚(当时名为菲利普·莫里斯)并一直将股息再投资的投资者,今天将拥有 8237 美元,而同期投资于标普 500 指数的 1 美元则变为 238 美元。虽然市销率 10 倍作为估值过高的唯一确切信号并无特殊魔力,但它之所以广为人知,很大程度上源于太阳微系统公司联合创始人兼首席执行官斯科特·麦克尼利于 2002 年对彭博社说过的一句话:
GMO 对美国价值型股票的资产配置预测在 2004 年 9 月跌至美国成长型股票之下。除 2009 年 2 月和 3 月外,美国价值型股票的预测直到 2015 年 7 月才重新超过美国成长型股票。
EXHIBIT 7PERCENT OF U.S. STOCKS TRADING OVER 10x PRICE/SALES 40% 35% 30% 25% 20% 15% 10% 5% 0% 1980 1984 1988 1992 1996 2000 2004 2008 2012 2016 2020 This is almost always true, but an unloved and undervalued Data from 1/1980-6/2021 | Source: GMO, Compustat company can also do shockingly well. For example, an investor who put $1 in Altria (then Philip Morris) in 1968 and reinvested her dividends would today have $8,237, against $238 for an investment in the S&P 500. While there is no particular magic about 10x sales being the unique true sign of 8 overvaluation, it has gained a certain amount of fame from a statement that Scott McNealy, The GMO asset allocation forecast for U.S. Value dropped co-founder and CEO of Sun Microsystems, made to Bloomberg in 2002: below that for U.S. Growth in September 2004. Apart from the months of February and March 2009, U.S. Value’s forecast did not move above U.S. Growth’s until July 2015.
价值与成长之争中的迷思 | p7 ……两年前我们的股价是 64 美元,当时市销率是 10 倍。市销率 10 倍意味着,要实现 10 年回本,我必须连续 10 年把收入的 100% 都拿来分红。这还得假设股东们同意我这么做。这假设我的销售成本为零——对电脑公司来说太难了。这假设我的运营费用为零——有 3.9 万名员工,这实在不可能。这假设我不交税——也很难。这还假设你拿到的分红不用缴税——这有点违法。而且假设未来 10 年我一分钱研发都不花,还能维持当下的收入水平。好,这些条件都满足了,你们谁还愿意用 64 美元买我的股票?你难道没意识到这些基本假设有多荒谬吗?你根本不需要什么透明度。你根本不需要什么附注。你当时在想什么呢?9“一只股票市销率达到 10 倍甚至更高,要给出不错的回报,并非严格意义上的不可能。1999 年秋天,亚马逊的市销率远超 10 倍,此后 22 年的年化回报率高达 18%,总回报 38 倍。10”但另一方面,亚马逊从那个高点跌到两年后的低点,跌幅接近 93%,而一位投资者如果当初忍住,等到 2000 年底其市销率跌破 10 倍时才买入,那么他的初始投资将翻 89 倍,并且省去了早期的大量痛苦。11”但更重要的是,关键在于:市销率超过 10 倍的股票,其胜算极低。图表 8 展示了一篮子市销率超过 10 倍的股票组合的长期实际回报。
Dispelling Myths in the Value vs. Growth Debate | p7 …2 years ago we were selling at 10 times revenues when we were at $64. At 10 times revenues, to give you a 10-year payback, I have to pay you 100% of revenues for 10 straight years in dividends. That assumes I can get that by my shareholders. That assumes I have zero cost of goods sold, which is very hard for a computer company. That assumes zero expenses, which is really hard with 39,000 employees. That assumes I pay no taxes, which is very hard. And that assumes you pay no taxes on your dividends, which is kind of illegal. And that assumes with zero R&D for the next 10 years, I can maintain the current revenue run rate. Now, having done that, would any of you like to buy my stock at $64? Do you realize how ridiculous those basic assumptions are? You don't need any transparency. You don't need any footnotes. What were you thinking?9 “ It is not strictly impossible for a stock trading at 10x sales or more to give a good return. Amazon was trading at well over 10x sales in the fall of 1999, and the return from then has been a very healthy 18% annualized, or 38x total gain over 22 years.10 On the other hand, But the more important Amazon did fall by almost 93% from that peak to the low 2 years later, and an investor who point is that the odds had held off and only bought when its price/sales fell below 10 in late 2000 would have made 89x his initial investment and saved himself a good deal of initial pain.11 are strongly against companies trading at But the more important point is that the odds are strongly against companies trading at over 10x sales. Exhibit 8 shows the long-term real returns to a portfolio of stocks trading at over 10x sales.
以销售额 10 倍甚至更高的价格相对于整个股市。
10x sales or more against the overall stock market.
**图表 8市销率超过 10 倍的股票组合 vs. 指数表现**
8.7% 实际回报 标普 500 指数
4.4% 实际回报 彭博巴克莱美国综合指数
4.3% 实际回报
0 回报 市销率超过 10 倍组合
1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2021
数据截至 2021 年 6 月 30 日 | 来源:GMO、Compustat、标准普尔
市销率超过 10 倍组合是一个按市值加权的组合,包含所有过去 12 个月滚动市销率超过 10 倍的股票,每月调整一次。
EXHIBIT 8PERFORMANCE OF STOCKS TRADING OVER 10x P/S VS. INDEXES 8.7% Real Return S&P 500 4.4% Real Bloomberg Barclays Return 5 U.S. Aggregate 4.3% Real Over 10x P/S 0 Return 1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2021 Data as of 6/30/2021 | Source: GMO, Compustat, Standard & Poor's The over 10x P/S portfolio is a market capitalization weighted portfolio of all stocks trading above 10x trailing 12-month sales, rebalanced monthly.
自 1980 年以来,10 倍市销率股票组合的年化表现落后市场超过 4%,引自《与斯科特·麦克尼利的对话》,彭博社,2002 年 3 月 31 日。
The 10x sales cohort has underperformed the market by over 4% per year since 1980, “A Talk with Scott McNealy,” Bloomberg, March 31, 2002.
将标普 500 指数在 41 年间实际回报 30 倍的水平降至不到 4 倍,这与 1999 年 11 月 1 日至 2021 年 7 月 1 日期间彭博巴克莱美国综合债券指数 18.4% 的回报率几乎完全吻合。虽然并非不可能做到——根据雅虎财经的年化数据——证明如此高的估值是合理的,但这需要非凡的业绩才能实现。亚马逊在 2000 年秋季至 2001 年秋季之间下跌得更为惨烈,到谷底时其估值已相当平庸。在估值需要奇迹才能获得良好回报的地方投资,通常一直是糟糕的主意——尽管存在少数例外情况。真正有远见的投资者如果在谷底买入并一路持有,本可获得更令人垂涎的 557 倍回报,但他们买入时的估值大约只是销售额的 1 倍,这是连价值基金经理都会喜爱的估值。如今,美国股市中整整 25% 的股票交易价格超过了销售额的 10 倍,远高于历史上除 2000 年互联网泡沫顶峰之外的任何时期。这些公司中有些最终能否证明其估值是合理的?几乎可以肯定。但如果历史可资借鉴,绝大多数公司做不到。
10 reducing a 30x real gain over the 41 years in the S&P 500 to less than 4x, almost precisely Return from November 1, 1999 to July 1, 2021 was 18.4% in line with the Bloomberg Barclays U.S. Aggregate Bond index. While it is not impossible to annualized as per Yahoo Finance. prove worthy of such a high valuation, it takes extraordinary results to do so. And investing Amazon fell a lot more between the fall of 2000 and the where it will take something extraordinary to earn a good return has generally been a bad idea fall of 2001, and its valuation by the bottom was pretty despite the existence of a handful of exceptions to the rule. pedestrian. The truly prescient investor who got in at the bottom and held all the way up would have made an even Today, a full 25% of the U.S. stock market is trading above that 10x sales multiple, far more mouthwatering 557x gain, but they were buying higher than any time in history apart from the peak of the internet bubble in 2000. Will in at around 1x sales, a valuation even a value manager some of those companies prove worth their valuation in the long run? Almost certainly. But could love. if history is any guide, the vast majority will not.
破解价值与成长之争中的迷思 | 第 8 页“论点 6:价值股近期从 10 月到 3 月经历了一次不错的技术性反弹,但长期趋势仍然有利于成长股。
Dispelling Myths in the Value vs. Growth Debate | p8 “ Argument 6: Value recently made a nice tactical rally from October to March, but the secular trend remains in favor of growth.
长期答案信仰论:如果“长期趋势”意味着相信成长股在极长期内应跑赢价值股,这个论点在我看来格外怪异。相信成长股存在永久溢价,就等于相信它们会持续被低估。和任何资产一样,股票回报取决于你支付的价格。无论一家公司的前景多么美妙,总存在某个估值水平会让其股票变成糟糕的投资。要相信成长股会永久跑赢,我们就必须相信投资者会始终无法为成长股给出足够高的定价,同时无法让价值股足够便宜,以至于两者预期回报相近。我很难想象这背后的理由。虽然成长股历史上贝塔系数高于价值股,但完全没有证据表明投资者会用人为压低的估值来惩罚高贝塔股票——事实上,高贝塔股票长期来看反而是糟糕的投资。成长股的质量往往高于价值股,这使它们在经济衰退时更容易存活。而严重的经济衰退是股票投资者面临的最重要的长期风险——这恰恰应成为成长股均衡回报更低而非更高的理由。股市中的巨大成功几乎总是属于那些曾经或现在是成长股的公司。毕竟,一家公司拥有庞大市值,要么意味着投资者对其未来前景极度信任,以至于当前估值倍数极高(如特斯拉),要么意味着其利润规模已如此巨大,必然经历了惊人的增长才走到这一步(如苹果)。无论哪种情况,这都是一个成长故事,而人们会根据成功的故事来调整自己的行为模式。
A belief in a permanent Answer: This argument feels particularly weird to me if “secular trend” is shorthand for a belief that growth should outperform value in the very long term. A belief in a permanent premium for growth premium for growth stocks requires a belief that they will continually be underpriced. For stocks requires a growth stocks, as with any asset, returns are a function of the price you pay. No matter belief that they how wonderful a company’s prospects, there is necessarily some valuation that would will continually be make the company’s stock a poor investment. In order to believe growth stocks are going to permanently outperform, we need to believe that investors will durably fail to price them underpriced. high enough, and value stocks low enough, for value stocks to have a similar expected return. It’s hard for me to imagine a reason for that. While growth stocks have historically had a higher beta than value stocks, there is no evidence whatsoever that investors have punished high beta stocks with artificially low valuations, and indeed high beta stocks have proven a poor investment over time. Growth stocks tend to be higher quality than value stocks, which helps them survive economic downturns better. Because severe economic downturns are the most important long-term risk equity investors face, that would be an argument for growth having a lower equilibrium return, not a higher one. And the great successes in the stock market are almost invariably stocks that are or were growth companies. After all, a giant market cap is either a sign that investors have such faith in the future prospects of your company that you are currently priced at a huge multiple (i.e., Tesla), or that you have such utterly huge profits that you must have grown immensely to get to that point (i.e., Apple). Either way the story is a growth story, and people pattern their actions around stories that have been successful.
从经济学和行为学角度看,相信价值股存在长期回报溢价要容易得多。它们在衰退期通常更为脆弱,从经济学上看,这就至少为愿意持有它们的投资者提供了获取小幅溢价的合理依据。对发行这些股票的公司而言,提供这种溢价也说得通,因为这些公司用股权而非债权为投资融资所获得的额外安全性,值得在长期内支付更高的回报。从行为学角度看,做一位价值投资者需要做那些人类本能上感到不舒服的事情,而人们很容易相信,具有这些特征的资产可能会存在某种额外的折价(并因此带来未来的回报溢价)。你很难想象能提出一个有说服力的论点,证明成长股会持续跑赢——即使你不同意我对价值股存在长期顺风的看法,这一点也同样成立。
Economically and behaviorally, it is significantly easier to believe there would be a long- “ term return premium for value stocks. They are generally more vulnerable in economic downturns, and that would economically warrant at least a small premium going to investors willing to hold them. Offering that premium would also make sense for the Economically and companies issuing those equities, because the added safety to those companies in funding behaviorally, it is their investments with equity versus debt is worth paying a higher return in the long significantly easier to run. Behaviorally, being a value investor requires doing things that humans tend to find believe there would uncomfortable, and it's not too hard to believe that there might be some extra discount (and consequently future return premium) to assets that have those features. It’s hard to imagine be a long-term return a persuasive argument around a permanent outperformance by growth, and that is no less premium for value true even if you don’t agree with my case for a secular tailwind for value stocks. stocks.
但该论点还存在另一种解读。这种解读认为,尽管成长股在均衡状态下不应预期会跑赢市场,但目前在当下它们理应表现出色。这看起来比第一种解读稍显温和,但我却觉得同样令人费解。如果长期来看成长股的表现将与市场趋同,只是从当下开始理应跑赢,那么逻辑上必然成立的是——它们目前被低估了。图表 9 展示了美国大盘股中价值股与成长股当前的估值差距。
But there is an alternative interpretation of the argument. That would say that even though growth stocks should not be expected to outperform in equilibrium, they deserve to outperform today. This seems a somewhat less extreme statement than the first interpretation, but I find it no less mystifying. If growth stocks will perform similarly to the market in the long run but deserve to outperform from here, it logically must be the case that they are undervalued presently. Exhibit 9 shows the current valuation spread between value and growth in U.S. large caps.
破除价值与成长之争的迷思 | 第 9 页 图 9:价值股已极度便宜 1.4 最便宜股票的相对估值 1.3 1.2 1.1 1.0 美国股市中市值最小的 50% 股票 vs.
Dispelling Myths in the Value vs. Growth Debate | p9 EXHIBIT 9: VALUE IS EXTREMELY CHEAP 1.4 Relative Valuation of Cheapest 1.3 1.2 1.1 1.0 50% of U.S. Stock Market vs.
0.9 0.8 0.7 昂贵 较低 平均 0.6 0.5 2021 年 7 月 0.4 第 4 百分位 0.3 1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2021 截至 2021 年 7 月 31 日 | 数据来源:GMO 综合估值指标由市销率、市毛利润率、市净率和市经济净值组成。价值和成长组均按 12 个月滚动划分。
0.9 0.8 0.7 Expensive Less Average 0.6 0.5 July 2021 0.4 4th Percentile 0.3 1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2021 As of 7/31/21 | Source: GMO Composite Valuation Measure is composed of price/sales, price/gross profit, price/book, and price/ economic book. Value and growth groups are both sliced over 12 months.
当前价值股相对于成长股的历史平均折价幅度已达 40%。如果你认为成长股目前被低估,那就意味着你必须相信,几年前当两者关系大致处于历史正常水平时,成长股的低估程度堪称史无前例。更重要的是,你对成长股未来前景的预期,必须远高于它们历史上的实际表现——即便在成长股表现最好的时期也不例外。图表 10 展示了过去 15 年间价值股与成长股的收益来源,并与之前价值股表现更优的时期进行了对比。
Value stocks are currently trading at a 40% discount to their historical average relationship with growth stocks. If you believe growth stocks are undervalued today, you would have to believe their undervaluation a few years ago when the relationship was approximately normal relative to history was absolutely epic. More importantly, your beliefs about the future prospects for growth stocks would need to be far better than they have delivered historically, even in the period of their outperformance. Exhibit 10 shows the sources of return for value stocks versus growth stocks over the past 15 years against the earlier period in which value stocks outperformed.
附注 10美国价值股与成长股相对回报分解
15% 年化相对回报 9.9%
10% 7.9%
5% 5.5% 1.5% 2.6% 3.1%
0%
-5% -2.6% -5.3%
-10% -7.9% -7.6%
总回报 估值 收入 再平衡
1983–2006 年 2006–2021 年
截至 2021 年 1 月 31 日 | 来源:Worldscope、Compustat、MSCI、GMO
美国价值股定义为美国市场中按市值计算便宜的一半,美国成长股定义为美国市场中按市值计算昂贵的一半。
EXHIBIT 10U.S. VALUE VS. GROWTH RELATIVE RETURN DECOMPOSITION 15% Annualized Relative Return 9.9% 10% 7.9% 5.5% 5% 1.5% 2.6% 3.1% 0% -5% -2.6% -5.3% -10% -7.9% -7.6% Total Return Valuation Growth Income Rebalancing 1983-2006 2006-2021 As of 1/31/21 | Source: Worldscope, Compustat, MSCI, GMO U.S. Value defined as the cheap half on market cap within the U.S., U.S. Growth is the expensive half on market cap within the U.S.
价值股自 2006 年以来每年跑输 2.6%。它们的相对估值每年下降 5.3%。这意味着,价值股跑输以及成长股跑赢的 100% 以上,都可以用价值股相对估值的下降来解释。因此,要相信成长股会持续处于“长期趋势”之中,就需要相信两件事。第一,我们近年来看到的成长股大幅向上相对重估,仍然低估了它们实际应得的重估幅度;第二,这种低估是由于这些公司的未来前景远超它们历史上任何时期的成绩,包括它们近期表现优异的时期。尽管这两种信念在逻辑上并非不可能,但它们显然站在了特殊性的极端边缘。任何人持有这种观点,确实应该拿出一些极其有力的证据来支持。而相反的观点——即一批表现不佳、且表现不佳完全能被相对估值下降所解释的股票实际上很便宜——则远非那么特殊。要让这个观点成立,我们只需要相信,价值股未来的前景不会比它们长期或较近的过去糟糕太多。
Value stocks have underperformed by 2.6% per year since 2006. Their relative valuation has fallen by 5.3% per year. This means that more than 100% of their underperformance, and the outperformance by growth stocks, can be explained by the falling relative valuation of value stocks. A belief in a continued “secular trend” in favor of growth stocks therefore requires two beliefs. First, that the massive upward relative revaluation of growth stocks that we have seen in recent years understates the revaluation that they actually deserved, Dispelling Myths in the Value vs. Growth Debate | p10 and second that this underreaction is due to a future outlook for these companies that is far better than anything they have achieved historically, including in the period of their recent outperformance. While there is no logical impossibility to those beliefs, they do seem pretty far out on the extraordinary scale. Anyone holding them really should have some awfully good evidence in their favor. The opposing view, that a group of stocks whose underperformance is more than explained by their falling relative valuations is actually cheap, seems a far less extraordinary claim. In order for it to be true, we merely need to believe that the future prospects of value stocks are not drastically worse than they have been in either the long term or the relatively recent past.
论点七:我们生活在一个相较于过去增长放缓的世界里。在这个世界中,对那些确实能带来增长的公司,付出更高溢价是合理的。
Argument 7: We live in a lower growth world than we used to. In that world it makes sense to pay up more for those companies that can actually deliver growth.
答案:自 2005 年左右以来,发达国家的经济增长确实已经放缓。
Answer: Economic growth has definitely slowed in the developed world since about 2005.
1983 年至 2006 年间,美国 GDP 增长率为 3.4%,而自那以后,平均增长率仅为 1.5%。
GDP growth in the U.S. from 1983-2006 was 3.4%, and since then has averaged 1.5%.
尽管自大萧条以来两次最严重的衰退压制了后一数值,但人口增长和生产率增长相较前一时期均显著放缓,而且短期内这一局面是否会大幅改变远非显而易见。相关性或许不能提供因果关系,但在没有相当透彻分析的情况下,就轻率否定一个与已发生事实存在相当良好相关性的论点,是愚蠢的。
While the existence of the two deepest recessions since the Great Depression has depressed the latter figure, both population growth and productivity growth slowed markedly versus the earlier period and it’s far from obvious that the situation is going to change much any time soon. Correlation may not provide causality, but it is foolish to dismiss an argument that correlates decently well with what has occurred without reasonably thorough analysis.
那么,我们来深入探讨一下,要让这种论点真正站得住脚,需要哪些条件成立。一个显而易见的方向是:如果增长型股票的增速与价值型股票的增速之间的差距扩大,那么更慢的增长就有可能持续提升增长型股票的相对回报。如果增长型股票始终以与价值型股票相同的速度增长,而价值型股票的增长却在下降,那就为价值型与增长型股票之间更宽的估值差距提供了明显的理由。但我们在图表 10 中看到,增长型公司的增速差距几乎与之前价值股表现优异时期完全一致。在没有增速差距变化的情况下,增长型股票仍有可能在适应较低增长环境方面做得更好。如果我们设想价值型股票未能准确判断较低增长环境且投资过度,它们或许实现了某种增长,但代价过高。在这种情况下,成本会表现为对股东支付更少。我们也没有看到这方面的证据,因为近期价值型股票的额外收入实际上比价值股黄金时期还要略高一些。价值型和增长型公司都以令人耳目一新的理性方式应对了总增长率的下降,它们的派息率(包括股票回购和发行)也随之上升了。
So let’s try to delve deeper into what would have to be true in order for this argument to really hold water. The obvious way slower growth could lead to sustainably better relative “ returns for growth stocks would be if the gap between the growth of growth stocks and the growth of value stocks became larger. If the growth stocks grew at the same rate as Both value and always and the value stocks saw their growth fall, that would be an obvious justification for a wider valuation gap between value and growth stocks. But we saw in Exhibit 10 that growth companies the growth gap has been almost exactly what it had been in the earlier period of value’s have responded in a outperformance. refreshingly rational Absent a change in the growth gap, it could still have been the case that growth stocks did manner to falling a better job navigating the lower growth environment. If we imagine that value stocks did aggregate growth rates, a poor job diagnosing the lower growth environment and invested too much, they might and their payout ratios have achieved some growth but at too high a cost. In that situation, the cost would appear (inclusive of stock as lower payments to shareholders. We don’t see evidence of that, either, because the extra income for value stocks in the recent period has actually been a little higher than it was in buybacks and issuance) the glory days for value. Both value and growth companies have responded in a refreshingly have risen accordingly. rational manner to falling aggregate growth rates, and their payout ratios (inclusive of stock buybacks and issuance) have risen accordingly.
然而,自 2007 年以来,增长的这种表现有一个方面为增长投资者带来了超越估值上升意外之财的收益。在图 10 中,这一点体现在“再平衡”柱状图上。再平衡几乎总是给价值带来益处,而给增长带来损害,因为价值股变成增长股的过程几乎总是对持有者有利,而增长股变成价值股的过程则几乎总是有害。价值受益和增长受损的规模主要取决于两个因素——价值股与增长股之间的估值差,以及增长股变成价值股(反之亦然)的概率。自 2007 年以来,再平衡效应给价值带来的负面影响比早期阶段低了 2%——水平为 +7.9%,而非 +9.9%。两个时期价值与增长之间的平均估值差大致相同,所以真正发生的变化是,从增长股转化为价值股的股票变少了,反之亦然。对于增长最快的股票来说,这一点尤为显著。从 1983 年到 2006 年,增长排名前五分之一的股票在该组中平均停留 29 个月。自 2007 年以来,它们在该组中平均停留了 40 个月,几乎整整多了一年。从增长投资者的角度来看,这相当不错,因为这些股票在失宠时估值缩水的幅度最大。它们在高速增长组中停留的时间更长,这几乎完全可以解释整体再平衡效应的下降。虽然目前尚不完全清楚这种转变是否会持续到未来,但我们就假定它会持续。不过,我们并没有因此调整我们对价值与增长之间均衡估值差的估计。为什么没有?原因是早期阶段价值的超额收益远高于我们认为未来合理的水平。从 1983 年到 2006 年,价值组每年跑赢增长组超过 5%,而我们今天假设的均衡水平是 1%(价值跑赢市场 0.5%,增长则对应跑输 0.5%)。这里有很大的余地对增长组的“黏性”做出更友好的假设,而不需要比历史更宽的估值差。说实话,我们的均衡假设已经足够保守,以至于意味着未来的估值差应该会比过去明显更小。实际上,我们假设的是,价值股的基本面驱动因素在 1983-2006 年或 2007-2021 年这两个时期中,都会表现得更差。
There is, however, an aspect of growth’s performance since 2007 that has accrued to the benefit of growth investors over and above the windfall of rising valuations. In Exhibit 10, it shows up in the “rebalancing” bars. Rebalancing always accrues to the benefit of value relative to growth because the process of a value stock becoming a growth stock is almost invariably good for the holder and the process of a growth stock becoming a value stock is almost invariably bad. The size of the benefit to value and negative to growth is largely 12 a function of two factors – the spread of valuation between value and growth stocks and Even though value is very cheap relative to growth today, the probability of growth stocks becoming value stocks and vice versa. Since 2007, that that shift occurred pretty recently. From 2007-17 value was rebalancing effect has been 2% worse for value than it had been in the earlier period – trading at a smaller than average valuation spread, which brings down the average gap over the full period. If the gap +7.9% instead of +9.9%. The average valuation gap between value and growth was about were to remain at the current level, the rebalancing effect the same in the two periods12 so what has really gone on is that fewer growth stocks have should be a lot bigger because the valuation decrement/ turned into value stocks and vice versa. This is most strikingly true for the highest growth increment from moving from one style group to the other stocks. From 1983-2006, top quintile growth stocks remained in that group for 29 months is so big.
结论
我已经花了大量篇幅来澄清我们听到的关于价值股的各种反驳意见。请相信我们。我们理解。这个增长周期在持续时间和幅度上都痛苦得漫长,而过去几周的增长反弹,在经过几个季度的价值股飙升之后,很容易看起来像是回归到了“正常”模式。和几乎所有人一样,我们是社会性动物,也想融入群体、加入派对。但我们同时也是有耐心的、对估值敏感的投资者,以前就见过这样的故事。虽然公司和市场在演变(我们对价值相对增长应该享有合理折扣的均衡假设也在演变),但今天价值与增长之间的估值脱节已经达到了极端水平。我们听过很多理由说“这次不一样”,增长注定且理应跑赢。在这些相对估值水平上,我们的长期赌注是相反的。
Dispelling Myths in the Value vs. Growth Debate | p11 Ben Inker on average. From 2007 on, they have remained in the group for 40 months, almost a full Mr. Inker is head of year longer. This is pretty cool from the standpoint of a growth investor, given these are the GMO’s Asset Allocation companies that suffer the largest valuation decreases when they fall from grace. The impact team and a member of their longer average span as high growth is almost certainly enough to explain the fall in of the GMO Board of the overall rebalancing effect.13 Directors. He joined GMO in 1992 following the completion of his B.A. in While it is not entirely clear whether this shift will persist into the future, for our Economics from Yale University. In his years part we assume it will. We have not, however, adjusted our estimated equilibrium at GMO, Mr. Inker has served as an analyst for valuation gap between value and growth to compensate. Why not? The reason is that the Quantitative Equity and Asset Allocation the outperformance of value in the earlier period was a lot larger than we think it is teams, as a portfolio manager of several reasonable to assume going forward. The value group outperformed growth by over equity and asset allocation portfolios, as 5% per year from 1983-2006, against a 1% assumption we have in equilibrium today co-head of International Quantitative Equities, (0.5% outperformance for value versus the market and equivalent underperformance for and as CIO of Quantitative Developed growth). There is plenty of room there for a friendlier assumption on the retentiveness of Equities. He is a CFA charterholder. the growth group without requiring a wider than historical valuation gap.14 Honestly, our equilibrium assumption is sufficiently conservative as to imply that the valuation gap in the future should be meaningfully smaller than it has been in the past. Effectively, we are Disclaimer assuming that the fundamental drivers for value stocks will be worse than they have been The views expressed are the views of Ben Inker through the period ending August 2021, in either the 1983-2006 or the 2007-2021 period. and are subject to change at any time based on market and other conditions. This is not an Conclusion offer or solicitation for the purchase or sale I’ve spilled a lot of ink here dispelling many of the pushbacks we hear about value. Trust us. of any security and should not be construed We get it. This growth cycle has been painfully long in duration and magnitude, and the as such. References to specific securities growth rally of the last several weeks can easily seem like a return to the “normal” pattern and issuers are for illustrative purposes only after a couple of quarters of a value surge. We, like almost everyone, are social creatures and are not intended to be, and should not be who want to fit in and join the party. But we’re also patient, valuation-sensitive investors interpreted as, recommendations to purchase or sell such securities. who have seen this story before. While companies and markets evolve (as do our equilibrium assumptions about the proper discount at which value should trade relative to growth), the Copyright © 2021 by GMO LLC. valuation disconnect between value and growth has reached extreme levels today. We’ve All rights reserved. heard many reasons why “it’s different this time” and growth is destined and deserving to outperform. At these relative valuation levels, our long-term bet is the opposite.
虽然像最近这样的逆转让我们感到挫败,但相比增长股在其他价值股强势时期的表现,这并不算什么异常情况。对于我们的投资组合而言,这也提供了一个机会,可以重新平衡到当下最被低估的公司。而在多空策略中——比如我们在 2020 年底推出的股票错位投资组合——这也让我们有机会重新调整空头头寸,转向那些估值现在变得最为离谱的增长股。股票错位在我们可灵活配置的基准自由配置策略中的权重仍保持在约 20%。
While a reversal like the recent one is frustrating to us, it is nothing out of the ordinary compared to growth moves in other strong periods for value. For our portfolios, it has also provided an opportunity to rebalance into today’s most undervalued companies. And in long/short strategies such as the Equity Dislocation portfolio we launched in late 2020, it has also given us the chance to reposition our shorts into those growth stocks whose valuations have now become the most egregious. Equity Dislocation’s weighting in our go-anywhere Benchmark-Free Allocation Strategy remains at approximately 20%.
计算再平衡效应实际上涉及很多变动的部分,这使得隔离某个特定驱动因素的独特影响有些棘手。最大的驱动因素是股票从价值转为增长以及从增长转为价值的移动,但新进入的股票也会产生影响,而退出市场或缩水到整体样本之外的公司同样重要。严格来说,不可能孤立地看待某一个部分,因为它们同时发生并且相互影响。
There are actually a lot of moving parts in calculating the rebalancing effect, which makes isolating a particular driver’s unique impact somewhat tricky. The single biggest driver is the shift of stocks from value to growth and growth to value, but new entrants also have an effect and companies that go out of business or shrink out of the overall universe matter as well. It’s not strictly possible to look at one piece in isolation because they all occur simultaneously and impact each other.
整体市场估值水平越高,确实能证明略宽的估值差是合理的,但正如我在《价值的久期》一文中所讨论的那样,这种影响相当小。
Higher overall market valuations do justify a slightly wider spread, but as I discussed in “The Duration of Value,” the effect is pretty small.