When Recessions Officially Begin — Markets Move First
S&P 500 performance from each NBER-dated recession start
The National Bureau of Economic Research (NBER) is the official arbiter of US recession dates, but it works in hindsight — start dates are typically announced 6 to 18 months after the recession actually began. This chart anchors S&P 500 performance to the true recession start months, from 1969 through 2020, revealing what markets were doing while the economy was already contracting but before anyone had officially said so.
| Date | 1M return | 1Y return | 5Y return |
|---|---|---|---|
| 1969-12-01 | -1.2% | -7.8% | -26.2% |
| 1973-11-01 | -12.8% | -31.4% | -12.2% |
| 1980-01-02 | +7.9% | +28.4% | +57.7% |
| 1981-07-01 | +0.9% | -15.5% | +91.8% |
| 1990-07-02 | -1.1% | +5.1% | +51.3% |
| 2001-03-01 | -6.5% | -6.7% | +3.0% |
| 2007-12-03 | -1.7% | -42.4% | -4.4% |
| 2020-02-03 | -3.7% | +17.8% | +87.3% |
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.
By the time the NBER declares a recession's start date, the economy has been contracting for months and markets have already repriced. Waiting for official confirmation means acting on old news.
Equity markets are forward-looking and frequently peak before the recession begins, meaning much of the decline can be behind by the official start month. The overlay shows how far along the repricing typically was at that point.
The 2020 pandemic recession lasted two months; the downturns of the early 1980s ground on far longer. Overlaying each episode shows the dispersion an average would conceal.
Because recessions are only identified in hindsight, consider building the portfolio to withstand one at all times rather than attempting to sidestep it: review whether cash and high-quality bonds cover near-term spending needs, and check that equity exposure matches the written target rather than the last bull market's drift.