thetrading.tools
Signals/10% Correction

10% Correction: What Happens After It Fires?

SPY closes 10% or more below its all-time high — the textbook definition of a market correction. Each episode counts once: after a trigger, SPY must climb back to a fresh all-time high before the signal can fire again, so a drawn-out bear market is one occurrence, not many.

The base rates

Since 1993, the 10% Correction signal has fired 12 times on SPY (most recently on 2025-03-13). Six months later, SPY was higher 83% of the time (12 completed cases) with an average return of +11.6% and a median of +13.2%. Twelve months later, SPY was higher 75% of the time (12 completed cases), averaging +12.0% with a worst case of -34.7% and a best of +51.1%. Data through 2026-07-02.

Rule
Close <= 90% of the running all-time high. Re-arms only after a new all-time high.
12 occurrencesData: 1993-02-022026-07-02Cooldown: 20 trading daysLast trigger: 2025-03-13
Latest trigger2025-03-13
+35.1%
All horizons complete

SPY since this trigger: $551.42 → $744.78 (through 2026-07-02)

This trigger vs the 12-signal average
1w
+2.6%
avg +3.5%
1m
-3.2%
avg +2.7%
3m
+9.5%
avg +7.5%
6m
+19.2%
avg +11.6%
9m
+25.0%
avg +11.3%
12m
+21.3%
avg +12.0%
01

Forward returns

Horizon% PositiveAvg ReturnMedianBestWorstN
1w92%+3.51%+3.95%+8.25%-0.53%12
1m67%+2.68%+3.69%+14.47%-14.82%12
3m83%+7.49%+7.57%+25.10%-7.60%12
6m83%+11.60%+13.22%+32.41%-10.16%12
9m75%+11.29%+13.26%+29.06%-27.99%12
12m75%+12.03%+15.39%+51.10%-34.73%12
02

Trigger history

SPY with Trigger Markers

Signal trigger · log scale · weekly closes
03

Every occurrence

DateSPY1w1m3m6m9m12m
2025-03-13$551.42+2.55%-3.17%+9.49%+19.22%+24.98%+21.33%
2022-02-22$429.57+0.10%+3.31%-7.60%-4.01%-8.14%-6.73%
2020-02-27$297.51+1.66%-14.82%+1.84%+16.83%+22.09%+27.85%
2018-10-29$263.86+3.61%+4.06%+2.30%+10.35%+11.74%+15.27%
2018-02-08$257.63+5.98%+8.11%+5.59%+10.65%+9.07%+5.04%
2015-08-24$189.55+4.28%+2.14%+10.42%+1.93%+9.66%+15.52%
2008-01-08$138.91-0.53%-3.59%-2.22%-10.16%-27.99%-34.73%
2000-04-14$135.50+4.98%+8.26%+11.44%+1.52%-1.96%-11.99%
1999-09-29$126.81+4.59%+6.11%+15.77%+19.25%+14.79%+12.89%
1998-08-14$106.13+2.29%-1.95%+5.65%+15.78%+26.44%+26.02%
1997-10-27$87.19+8.25%+9.24%+12.08%+25.45%+29.06%+22.72%
1997-04-11$73.38+4.33%+14.47%+25.10%+32.41%+25.80%+51.10%

Forward returns are computed from SPY closing prices. Cells showing “—” indicate the horizon has not yet elapsed for that trigger. Small samples from a generally rising market — base rates are evidence, not forecasts.