NDAQ's biggest one-day moves since 2021, 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 1 Apr 2021 to 4 Nov 2026 (1406 sessions). Later changes are measured from the close on the day of the move.
Biggest one-day falls
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 |
|---|---|---|---|---|
| 12 Jun 2023 | -11.8% | +1.7% | +0.8% | +1.4% |
| 3 Feb 2026 | -9.4% | -5.9% | +0.6% | +1.5% |
| 4 Apr 2025 | -7.5% | +4.8% | +14.4% | +30.2% |
| 17 Jun 2026 | -6.7% | -6.8% | +10.3% | +9.6% |
| 14 Oct 2022 | -6.5% | +5.5% | +20.6% | +16.1% |
| 25 Jan 2023 | -5.8% | +2.1% | -2.1% | -6.8% |
| 3 Apr 2025 | -5.8% | -4.7% | +6.0% | +23.1% |
| 2 Jun 2026 | -5.3% | -0.4% | -3.7% | +11.0% |
| 25 Jun 2026 | -4.9% | +9.0% | +21.0% | +22.4% |
| 20 Oct 2021 | -4.6% | +1.6% | +4.8% | -9.4% |
Biggest one-day rises
Of these 9, 7 were higher 21 sessions later · n = 9 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 9 Apr 2025 | +8.4% | -0.4% | +10.0% | +24.6% |
| 22 Oct 2026 | +7.5% | +2.2% | pending | pending |
| 25 Jul 2024 | +7.2% | +0.1% | +4.6% | +10.3% |
| 20 Jul 2022 | +6.1% | +2.9% | +13.7% | +1.9% |
| 24 Jul 2025 | +5.9% | +2.9% | +1.3% | -6.5% |
| 26 Feb 2026 | +5.5% | -0.4% | -8.0% | +2.7% |
| 1 Jul 2026 | +5.0% | +5.8% | +13.9% | +11.3% |
| 13 Dec 2023 | +4.1% | -2.2% | +0.1% | +6.2% |
| 10 Nov 2022 | +4.1% | -2.0% | -2.0% | -9.7% |
| 18 Oct 2023 | +4.0% | -4.7% | +3.1% | +11.9% |