S&P 500 P/E Ratio — Monthly Report

Monthly S&P 500 price/earnings ratio, Jan 1920–Sep 2026 (1282 months). Generated 2026-09-06.

Current PE
26.36 †
Sep 2026
High PE (80th pct)
22.14
threshold since 1920
Low PE (20th pct)
10.42
threshold since 1920
Median
16.52
mean 17.37
All-time min
5.82
Jun 1949
All-time max
123.73
May 2009

Monthly PE, 1920–present

0 10 20 30 40 50 60 70 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020 High PE (80th pct): 22.1 Low PE (20th pct): 10.4

Dashed lines mark the 80th percentile (“High PE”) and 20th percentile (“Low PE”) of the monthly series shown. The y-axis is clipped at 70 for readability; small red dots along the top edge mark months that exceeded this (chiefly late 2008–2009, when trailing earnings collapsed during the financial crisis and pushed the reported PE above 100). Percentiles are computed on the full, unclipped series.

Most recent 24 months

MonthPE
Sep 202626.36 †
Sep 202626.04 †
Aug 202626.11 †
Jul 202625.33 †
Jun 202625.22
May 202626.09
Apr 202625.49
Mar 202625.43
Feb 202627.07
Jan 202627.98
Dec 202528.48
Nov 202528.22
Oct 202528.42
Sep 202528.13
Aug 202527.84
Jul 202527.81
Jun 202527.10
May 202526.34
Apr 202524.56
Mar 202526.23
Feb 202528.15
Jan 202528.16
Dec 202428.60
Nov 202428.66

† = estimate (based on latest reported earnings and current market price).