Quality Stocks May Advance as Market Concentration Recedes June 11, 2024By Joe Hudepohl, CFAPortfolio Manager and Managing Director, Atlanta CapitalWe believe the extreme concentration found in U.S. equity markets, where a few holdings dominate returns, is unsustainable. When this trend breaks, it could mark the beginning of a "sweet spot" for diversified, high-quality portfolios,1 with investors turning toward more traditional measures of corporate strength, such as earnings growth and solid fundamentals.In recent years, we've pointed to the massive concentration of a few holdings driving U.S. equity index returns — whether it's the S&P 500 or the Russell 1000® Growth (exhibit 1). While many equity index returns were ruled by a group of stocks termed the "Magnificent Seven" in 2023, results for the first quarter of 2024 were even more concentrated. Four stocks — Nvidia, Microsoft, Meta and Amazon — accounted for more than 69% of the Russell 1000 Growth Index's return. If the pendulum swings back from the favored few, diversified portfolios of high-quality companies with consistent earnings growth should benefit. Pursuing strategies with high active share2 and a differentiated exposure could be even more beneficial.Exhibit 1: Russell 1000® Growth: Extreme Concentration in Recent YearsBuffett indicator approaching all-time highAlong with market concentration, equity markets have once again become expensive since late 2022. Looking across a range of valuation metrics — whether price-to-earnings (P/E) ratio, price-to-book, or price-to-free-cash-flow — these generally have been sitting at elevated levels relative to their long-term averages. Even more telling of the market's richness, we think, is the S&P 500 market-capitalization-to-GDP ratio, the so-called "Buffett Indicator." This ratio is used to determine whether an overall market is undervalued or overvalued compared to a historical average. It reached a new peak in 2021 before falling during the 2022 correction and is now approaching the all-time high once again (exhibit 2). With valuation metrics at these levels, it may be prudent for investors to think about downside protection instead of purely focusing on upside participation.Exhibit 2: U.S. Stock Market Nearing Record-High ExpensivenessLow-quality volatility and the case for high qualityOver the past four years, low-quality stock valuations have been very volatile. In 2020 and 2021, the market's low-quality tilt was a driver of high valuations and market expensiveness. The divergence between low-quality and high-quality stock valuations peaked in 2021, spurred by aggressive fiscal policy during COVID, along with the Federal Reserve's near-zero interest rate policy. Before this period, we saw low-quality stocks valued so highly (on a P/E basis) only two other times: during 2008-2009 and in the late 1990s. In 2022, U.S. equity markets corrected meaningfully, especially low-quality stocks. At that time, high-quality stocks provided investors significant downside protection. In late 2022 and the first half of 2023, low-quality valuations bounced back due to speculation and optimism about the potential of artificial intelligence and weight-loss drugs. Today, low-quality P/Es remain elevated, and while past market actions cannot be seen as predictive of the future, we believe high quality could be well positioned moving forward. As expected, throughout this four-year period, high-quality valuations remained more stable and consistent.In terms of sound investment strategy, we continue to believe investors will be well served by a diversified, high-quality portfolio, particularly ones with high active share. With markets near all-time highs, stock valuations above average, and index concentrations at historic levels, we may be approaching a market transition in which high quality returns to favor.Bottom line: A range of market factors point to a potentially improved environment for high-quality investors. In view of high market concentration, high valuations, economic uncertainty and ongoing volatility, investors may benefit from seeking higher-quality, sound businesses with demonstrable, consistent earnings and sound balance sheets versus their lower-quality counterparts.1 Higher-quality companies typically have consistent earnings, strong balance sheets, significant free-cash-flow generation, growing revenues and meaningful competitive advantages, whereas the opposite is true for their lower-quality counterparts. Historically, high-quality equities have outperformed over full market cycles.2 Active share is a measure of the percentage of stock holdings in a portfolio that differs from the benchmark index. A high active share score is said to indicate that a portfolio's holdings diverge from the target index and that the portfolio manager is outperforming it.Index definitions:S&P 500® Index is an unmanaged index of large cap stocks commonly used as a measure of U.S. stock market performance.Russell 1000® Growth Index is an unmanaged index of U.S. large cap growth stocks.