Palantir’s high valuation paints a stark picture of the S&P 500’s priciest picks

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- MarketWatch photo illustration/iStockphoto
- MarketWatch photo illustration/iStockphoto

You have probably seen warnings that after two years of double-digit gains for the S&P 500, stocks are getting pricey. Then again, you find warnings that the sky is about to fall down every day in the financial media.

It turns out that if you take a harder look at the most expensive stocks, there are big differences in the companies’ expected financial performance. Understanding those differences can help you make money or avoid big losses when playing individual stocks.

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Memories tend to be short. So far this year, the S&P 500 SPX has returned 29.1%, with dividends reinvested. That has followed a return of 26.3% last year. So far so good. But did you forget that the S&P 500 fell 18.1% in 2022? All together, this means the U.S. large-cap benchmark stock index has returned “only” 33.5% since the end of 2021. That’s actually pretty good — the index’s three-year average return of 10.88% compares with a 30-year average return of 11.05%, according to FactSet.

Stretching our horizon a bit, the S&P 500 has returned 106% for five years — it has more than doubled, despite the Covid-19 disruption in 2020, a brief recession and then a difficult interest-rate cycle as the Federal Reserve made moves to clamp down on inflation.

So what about this expensive market? The forward price-to-earnings ratio for the S&P 500 is 22.4. That forward P/E is a weighted calculation of the index’s price divided by consensus estimates for the next 12 months for component companies among analysts polled by FactSet. The index’s average forward P/E has been 20 over the past five years, peaking at 23.6 in August 2020.

But to screen individual stocks to see which ones are “most expensive,” we have looked at forward price-to-sales ratios. This is because there is no P/E ratio for an unprofitable company. A company might be posting a 12-month net loss because of a noncash accounting adjustment. Or a company might be going through a period of relatively low profitability that distorts its P/E ratio.

On the same rolling 12-month basis, here is how the S&P 500’s forward price-to-sales ratio has moved since the end of 1999: