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Mark Hulbert: This is the simple reason you can’t believe the P/E ratio for the Russell 2000 right now

Mark Hulbert

If you want the real P/E for an index, you need to include those companies that are losing money

Which image reflects reality?

Getty Images

CHAPEL HILL, N.C. — Ready for today’s investment pop quiz?

Which of the following is the Russell 2000’s

price/earnings ratio when calculated based on trailing 12-month earnings?

a. 17.5

b. 14.1

c. meaningless

I bet that hardly any of you answered “c.” After all, the benchmark is down 15% for year-to-date performance. You’d be excused for thinking that the small- and mid-cap sectors this index represents are closer to being undervalued.

In fact, “c” is the right answer.

If you answered wrong you’re in good company. The two incorrect P/E ratios in my quiz come from very reputable sources: The 17.5 ratio comes from Morningstar’s reporting for the iShares Russell 2000 ETF
The 14.1 is what iShares reports for that same ETF.

Both numbers are significantly below the index’s long-term average for the P/E ratio.

The reason these two firms report such low P/E ratios is that their calculations exclude firms that are losing money. In many years, this exclusion has little impact. But not now, since a significant percentage of the small- and mid-cap firms that are in the Russell 2000 index are losing money. By excluding those firms, the calculations artificially make the small- and mid-cap sectors appear significantly undervalued.

What percentage of small- and mid-cap stocks are reporting losses? I was unable to get data for the companies in the Russell 2000, but Vincent Deluard, global macro strategist at investment firm StoneX (formerly INTL FCStone), told me in an email that it’s more that 50%. I could get the necessary data for the S&P Small-Cap Index (the S&P 600) and for the S&P Mid-Cap Index (the S&P 400) via FactSet. The accompanying chart shows what I found: Nearly a third of small-cap stocks lost money over the last 12 months, and a fifth of mid-cap stocks.

In the large-cap sector, in contrast, the prevalence of unprofitable companies is lower, but still not insignificant. Notice from the chart from 10% of the companies in the S&P 500

have lost money over the last 12 months.

The reason that the Russell 2000’s trailing P/E is meaningless is that companies in the benchmark collectively lost money over the last 12 months. As Deluard put it, “the ‘real’ P/E is meaningless with a negative denominator.”

Don’t try to wriggle out from underneath this conclusion by shifting your focus to estimated earnings over the next 12 months. Deluard says the Russell 2000’s forward P/E currently stands at 132.

For the record, let me stress that neither Morningstar nor iShares hides the fact that their P/E calculations exclude unprofitable companies. But a casual visitor to their websites might nevertheless miss their footnotes that explain their methodologies.

Regardless, though, the investment implication is clear: The small- and mid-cap sectors of the market that the Russell 2000 represents are overvalued in P/E ratio—significantly so.

That doesn’t mean that these sectors, or the market as a whole, couldn’t keep going up. But if you want to argue that they will continue rallying, you will need to base your arguments on factors other than their P/E ratios.

Mark Hulbert is a regular contributor to MarketWatch. His Hulbert Ratings tracks investment newsletters that pay a flat fee to be audited. He can be reached at

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