S&P 500 Down 5% in a Single Day
Forward returns after a -5% session
A -5% day is extreme — fewer than 30 occurrences since 1928. Most are clustered around 1929, 1932, 1937, 1987, 2008, and 2020. Historically followed by strong forward returns at every horizon.
| Date | 1M return | 1Y return | 5Y return |
|---|---|---|---|
| 1929-10-23 | -20.0% | -32.9% | -65.8% |
| 1930-06-16 | +4.5% | -34.3% | -48.3% |
| 1931-01-07 | +7.5% | -45.5% | -6.7% |
| 1931-09-24 | -0.4% | -23.9% | +59.5% |
| 1932-01-04 | +6.5% | -5.8% | +131.6% |
| 1932-03-31 | -20.3% | -12.3% | +130.5% |
| 1932-05-31 | +0.9% | +136.5% | +247.0% |
| 1932-08-12 | +11.4% | +61.1% | +109.9% |
| 1932-10-21 | +5.1% | +39.9% | +67.0% |
| 1933-02-14 | -3.6% | +70.3% | +72.2% |
| 1933-06-15 | +23.3% | +4.6% | +15.6% |
| 1933-09-21 | -10.1% |
What history says
Editorial commentary written by ALAN analysts. Figures cited below are analyst-authored context — they are not derived from the chart above and may reflect different windows or sources.
With fewer than 30 occurrences in nearly 100 years, a -5% day is genuinely rare. The median 12-month forward return exceeds +20%.
Black Monday (-22.6%) was followed by a +21% return over the next 12 months. The economy never entered recession. Pure panic, pure recovery.
Every major -5% day except those in 1929-32 was followed by a full recovery within 12-24 months. The 1929-32 period is the one exception in nearly a century of data.
A single-day decline this severe is one of the better tax-loss harvesting windows markets offer: consider realizing losses in taxable accounts while immediately swapping into similar (not identical) exposure, capturing the deduction without stepping out of a market that has recovered from every such day outside 1929-32.