Key Takeaways:
The S&P 500's price-to-earnings ratio depends on which version of earnings investors use, and the gap between the two measures is widening.
The S&P 500's price-to-earnings ratio, the most-watched valuation metric in global markets, depends on which version of earnings investors use, according to a Wall Street Journal analysis published July 13. The index's headline P/E can differ meaningfully depending on whether it is calculated using as-reported earnings or adjusted figures that strip out one-time charges.
"The index's P/E ratio depends on who is defining the 'E,'" the Journal reported, highlighting a methodological divide that has grown as companies increasingly report adjusted earnings that diverge from GAAP results. The gap between the two measures has widened over recent quarters as firms booked restructuring charges, impairment writedowns and other items excluded from adjusted figures.
The S&P 500 has climbed 22% over a period when individual stocks like Netflix have fallen 44% from peak levels, data show. The index recently emerged from six weeks of consolidation, with some technical analysts flagging a potential bullish breakout. A Seeking Alpha analysis titled "S&P500: Set Up For Disappointment, And Earnings Won't Help" warned that the move may fail and deliver more sideways trading than upside in the third quarter.
Three structural factors threaten the earnings side of the valuation equation. First, the growing use of adjusted earnings may overstate true profitability, as companies classify an increasing share of costs as one-time items. Second, the gap between headline and as-reported P/E ratios has widened, creating ambiguity about whether the index is as cheap as the headline multiple suggests. Third, the Q2 earnings season, which begins in earnest this week, will test whether companies can deliver the profit growth needed to support current valuations.
The debate over earnings definitions is not new, but it has taken on greater significance as the S&P 500 trades at elevated multiples relative to history. When adjusted earnings are used, the index appears reasonably valued. When as-reported figures are applied, the picture becomes more expensive. The difference matters for portfolio managers making allocation decisions between equities, bonds and cash.
If investors shift focus from adjusted to as-reported earnings, the S&P 500's perceived valuation could rise sharply, potentially triggering a reassessment of equity allocations. The divergence between the two earnings measures represents a risk for a market trading at multiples that already reflect optimism about profit growth. The Q2 reporting cycle, with major banks and technology companies scheduled to report in the coming weeks, will provide the next data point on whether earnings quality matches the headline numbers.
This article is for informational purposes only and does not constitute investment advice.
