Why we are active value investors
This essay demonstrates value investing’s superior returns compared to growth & value-light strategies.
Despite a wealth of empirical evidence highlighting the superior returns associated with value investing, many investors are still hesitant to fully embrace it. This reluctance to fully commit to value investing has led many investors to turn to “value-light” strategies, which sidestep the most contentious and volatile stocks, often sacrificing the core tenets of the value philosophy. In this essay, we will do the following:
- Show how the returns of value investing have been superior to all styles, including value-light
- Dispel misconceptions about the risk profile of value stocks
- Evaluate the damage indexing value has done to asset allocation over the past 20+ years
Superior Returns for Value
Superior returns from value investing have passed the scrutiny of a myriad of studies since Graham and Dodd first printed Security Analysis nearly a century ago. In addition, the data clearly make the case for selling stocks that perform well and reinvesting in the cheapest quintile, instead of holding value-light stocks which, on average, doesn’t add as much value (Exhibit 1).
Despite the preponderance of evidence, investors have always been slow to embrace value stocks, which we believe occurs for two reasons:
- There can be pain and discomfort when purchasing out-of-favor stocks.
- There is a perception that value stocks are riskier.
To deal with these issues and still capture the value premium, some investors have pursued value-light strategies. These strategies go by several different names, usually with some adjective appended to value, and generally avoid the most controversial and out-of-favor stocks. Since these strategies purchase stocks beyond the cheapest quintile, and historically have much lower returns, we believe they sacrifice too much of the rewards of the value philosophy to generate significant long-term outperformance.
The “Value is Riskier” Myth
Value investing works because most investors shy away from the near-term uncertainty and potential pain of holding out-of-favor stocks. Ben Graham’s parable of Mr. Market selling out-of-favor stocks to purchase stocks that are in favor is as true today as it was when he first wrote it in 1949.
While value investing works due to behavioral reasons, academics have tried to explain its superior returns by theorizing they are generated by taking additional risk. The measure of “risk” they use is generally volatility of short-term returns, which we believe is a poor measure of risk. Using a more appropriate (yet imperfect) proxy for risk, such as five-year volatility, value investing is superior when considered in the context of the returns generated relative to volatility.
Equities in general are a relatively volatile asset class, particularly in the near term. While value stocks can be more volatile in shorter periods, we would not recommend any style of equity investing over less than a five-year time horizon, as the volatility is too high to justify the potential return. However, over longer periods, the incremental volatility of value stocks is less material versus other styles and the market (Exhibit 2).
Looking at volatility in isolation ignores the significant reward an investor may earn for bearing the potential near-term volatility. Comparing the reward to the volatility over the same period, value is in line with the market over one-year periods and outshines all other strategies over longer periods (Exhibit 3). Interestingly, for value-light stocks, the return/risk ratio, is more or less in line with the market as a whole, meaning value-light strategies are sacrificing the return of value strategies while paying higher fees for the same return/risk profile as the market.
The Value Dispersion Myth
Value’s wider dispersion of returns is a related criticism of value investing. Over rolling 5-year holding periods, value returns are 18% more dispersed than value-light and 31% more dispersed than the universe. However, more dispersed does not mean worse, and in this case, it is good dispersion. The top-performing 5-year periods are significantly higher than the market’s top returns and all other styles, while the worst performance is comparable or better (Exhibit 4—top and bottom of the boxes). Even for the extreme downside periods (Exhibit 4—whiskers), value is in line or better, on average, while performing significantly better in the extreme upside performance periods.
While value is also criticized for performance in down markets, it does better than value-light portfolios in both up and down markets, even excluding the dot-com era, which was the period of value’s best alpha generation (Exhibit 5). Finally, value portfolios generated negative five-year absolute returns just 3.8% of the time, versus 5.4% for value-light and 8.8% for the universe.
Indexing Value — A Flawed Approach
As we mentioned in last quarter’s newsletter, the vagaries of index formation have led to value indices that are filled with stocks that we would not consider bargains. Since value and growth indices match cumulative market caps, expensive mega-caps have caused many growth stocks to fall into the value index. Bizarrely, some stocks wind up with a portion of their weighting in both the value and the growth series. We are firm believers that a stock is either cheap or not.
This has caused investors who chose to index their value allocation, presumably to lower volatility, to significantly underperform. While ACWI Value has significantly underperformed MSCI ACWI and MSCI ACWI Growth since MSCI constituted the indices in 1997, true ACWI value, as measured by the cheapest quintile of stocks, was the top-performing style (Exhibit 6).
Conclusion — Patience Pays
As most performance studies have shown, value investing has generated superior returns, and we’ve shown that those returns have outpaced those of value-light portfolios. In addition, over reasonable investment horizons value stocks:
- are superior on a return/risk basis
- exhibit volatility levels that converge with other styles and the universe over longer time periods
- while more dispersed, have better dispersion characteristics
- do better in up or down markets on average
Finally, indexing a value allocation has historically not been a good strategy, likely due to index formation vagaries.
NOTE: This is the first in Pzena's series Why We Are Active Value Investors.
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John is a co-portfolio manager for the Global, International, European, and Japan Focused Value strategies.
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John is a co-portfolio manager for the Global, International, European, and Japan Focused Value strategies.
Expertise
John is a co-portfolio manager for the Global, International, European, and Japan Focused Value strategies.
Expertise
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