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The Portfolio Doctor

My blog provides valuable insights into Nobel Prize-winning financial strategies for investors. By utilizing decades of worldwide peer-reviewed capital markets research and analysis, I demonstrate how to build better investment portfolios with lower risks. I also examine common financial media misinformation and how investors can make better financial decisions.

Can Growth Stocks Get Growthier? An Update on Valuations

It seems like a day doesn’t go by without Tesla’s rocketing stock price capturing headlines. How can investors make sense of the looming threats related to COVID-19 and an economic downturn versus a stock market that has positive returns so far this year? Through July 20, the S&P 500® Index and Russell 3000® Index are each up between 1-2% year-to-date.

If we break down the market further into components, growth stocks have been the clear winner. Consider the year-to-date performance for size and style groupings in Figure 1. Large-cap growth stocks have beaten large value stocks by more than 30% and small-cap value stocks by more than 40%.


Figure 1


These are big numbers, but what drives that performance? Growth stocks typically trade at higher multiples than value stocks (relative to earnings, for example) because investors are baking in higher growth expectations for future earnings, but the higher the price the lower the expected returns unless these growth expectations materialize and keep growing.

Where do these valuation spreads sit today? Figure 2 plots U.S. large-cap growth, U.S. large caps, U.S. small-cap growth, and U.S. small-cap value stocks across several commonly used valuation ratios. What we see, compared to both longer-term averages and other parts of the market, is large-cap growth stocks are trading at very high multiples.

The trends are similar in each chart, so let’s focus on price-to-earnings (P/E). As of July 15, large growth stocks were trading at a price multiple of 33.86 relative to earnings compared to the average P/E ratio of 21.11 since 2009. Additionally, if we compare to other parts of the market, the P/E ratio for large growth stocks is 43% higher than large-cap stocks (23.63) and 173% higher than small-cap value stocks (12.41).

While we can’t know what the future will bring, we can say that now, more than any time in recent history, investors in growth stocks are baking in very high expectations of future earnings growth that may or may not materialize, or extremely low expected returns.

Figure 2 a

Figure 2 b


Price-to-Earnings Ratio (P/E): The price of a stock divided by its annual earnings per share. These earnings can be historical (the most recent 12 months) or forward-looking (an estimate of the next 12 months). A P/E ratio allows analysts to compare stocks on the basis of how much an investor is paying (in terms of price) for a dollar of recent or expected earnings. Higher P/E

ratios imply that a stock's earnings are valued more highly, usually on the basis of higher expected earnings growth in the future or higher quality of earnings.

Price-to-Book Ratio (P/B): Price per share divided by book value (net assets) per share.

Price-to-Cash Flow Ratio (P/CF): Price per share divided by annual operating cash flow per share.

Price-to-Sales Ratio (P/S): Price per share divided by annual revenue per share.

Russell 3000® Index: Measures the performance of the largest 3000 U.S. companies representing approximately 98% of the investable U.S. equity market.

S&P 500® Index: The S&P 500® Index is composed of 500 selected common stocks most of which are listed on the New York Stock Exchange. It is not an investment product available for purchase.


Avantis, July 2020

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