QQQ's biggest one-day moves since 2006, and what happened next
Describes the past; not a signal. Pre-licensed data — internal estimates, to be re-verified after our licensed data rebuild.
Close-to-close daily changes from 10 Apr 2006 to 4 Nov 2026 (5176 sessions). Later changes are measured from the close on the day of the move.
Biggest one-day falls
Of these 10, 6 were higher 21 sessions later · n = 10 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 16 Mar 2020 | -12.0% | +0.9% | +24.0% | +41.3% |
| 12 Mar 2020 | -9.2% | +0.2% | +14.7% | +32.3% |
| 15 Oct 2008 | -9.0% | +0.0% | -0.5% | -4.8% |
| 29 Sep 2008 | -7.9% | -7.8% | -15.8% | -23.5% |
| 1 Dec 2008 | -7.5% | +11.7% | +10.6% | +1.6% |
| 9 Mar 2020 | -6.9% | -12.5% | +1.7% | +25.1% |
| 7 Oct 2008 | -6.3% | +2.9% | -2.0% | -6.6% |
| 4 Apr 2025 | -6.2% | +7.5% | +13.9% | +30.7% |
| 8 Aug 2011 | -6.0% | +7.5% | +8.0% | +14.5% |
| 13 Sep 2022 | -5.5% | -1.7% | -10.6% | -2.8% |
Biggest one-day rises
Of these 10, 8 were higher 21 sessions later · n = 10 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 13 Oct 2008 | +12.2% | -5.5% | -14.3% | -15.8% |
| 9 Apr 2025 | +12.0% | -4.7% | +4.7% | +18.9% |
| 28 Oct 2008 | +11.0% | +5.9% | -7.9% | -7.0% |
| 13 Mar 2020 | +8.5% | -11.3% | +10.4% | +22.9% |
| 24 Mar 2020 | +7.7% | +3.7% | +14.6% | +35.7% |
| 17 Mar 2020 | +7.6% | +1.0% | +17.3% | +33.6% |
| 10 Nov 2022 | +7.4% | +0.7% | +1.0% | +7.7% |
| 6 Apr 2020 | +7.1% | +7.8% | +11.5% | +30.8% |
| 26 Dec 2018 | +6.2% | -1.7% | +7.0% | +17.2% |
| 10 Mar 2009 | +6.2% | +7.3% | +17.1% | +35.4% |