S&P 500 valuation bands: 26.4× earnings · Oct 13, 2026

FAQ#

What are valuation bands?

Lines drawn at fixed multiples of the index's own earnings — 15× earnings, 20× earnings, 25× earnings — plotted alongside the index itself. Because both move, the bands are not horizontal: they rise as earnings grow. Where the index sits relative to them is the market's P/E, read as a picture instead of a number. S&P 500 is at 26.4× trailing earnings today, between 25× and 30×.

What multiple is the S&P 500 trading at now?

26.4× trailing 12-month earnings (7,801 index level ÷ 295.39 earnings per index point), as of Oct 13, 2026 — higher than 93.6% of all months since 1871. On the ten-year average earnings Shiller uses, the multiple is 40.5×, higher than 98.9% of history.

Why do the bands pinch shut in 2009?

Because earnings did. As-reported earnings fell roughly 90% into the first quarter of 2009, so every band anchored to trailing earnings collapsed with them and the index briefly printed a P/E above 100 — not because stocks were dear but because the denominator had vanished. This is the standard failure of a trailing multiple at a profit trough, and it is exactly the reason Robert Shiller averages ten years of earnings instead. Switch the earnings basis to the ten-year average to see bands that hold their shape through the cycle.

Does a high band mean the market will fall?

Not on any timetable you can trade. What the record supports is weaker: starting multiples have been informative about 10-year forward returns and close to useless about the next year. The index spent the whole second half of the 1990s above its 20× band and doubled from there before it broke. Treat the band as a statement about the price you are paying, not about what happens next quarter.

Is this the same P/E as the S&P 500 P/E ratio page?

Yes — the same number, by construction. Both are the index's latest close over S&P's published trailing earnings per share through Jun 2026: the bands express it per index point so it can be drawn against a price line and compared with 1929; the P/E page expresses it as a plain multiple, and its 150-year history ends on this very point. If the two ever disagree, something is stale and it is a bug, not a methodology difference. The one number on that page that will NOT match is the fund-factsheet figure shown beside it — a weighted harmonic mean of members' own multiples, which drops the members that lost money and weights by float-adjusted index weight.

Where do the earnings come from?

S&P's own as-reported earnings per share, trailing twelve months, as carried in Robert Shiller's long-run record — 1871 through Jun 2026, the last quarter S&P has closed. From there the figure is held against each later month's close, which is what a trailing multiple is; nothing of our own is spliced on. Prices are Shiller's monthly index extended with SPY's closes. Everything is nominal dollars, except the ten-year average basis, which restates past earnings into current dollars with CPI exactly as CAPE does.