VRSK'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 5 Apr 2021 to 4 Nov 2026 (1405 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 |
|---|---|---|---|---|
| 29 Oct 2025 | -10.4% | +2.9% | +8.2% | +4.5% |
| 3 Feb 2026 | -10.1% | -12.0% | +9.7% | -6.3% |
| 31 Jul 2024 | -8.5% | -0.6% | +3.8% | +0.9% |
| 5 May 2021 | -8.4% | -0.4% | +0.0% | +8.8% |
| 2 Nov 2022 | -6.7% | +0.3% | +9.5% | +6.5% |
| 4 Apr 2025 | -6.6% | +2.4% | +3.9% | +6.3% |
| 30 Jul 2025 | -6.3% | -3.8% | -3.4% | -15.7% |
| 16 Oct 2025 | -6.1% | +2.5% | -5.8% | -3.8% |
| 30 Jul 2026 | -6.0% | -5.3% | -4.3% | -5.3% |
| 10 Aug 2026 | -5.5% | -3.1% | -1.8% | pending |
Biggest one-day rises
Of these 9, 4 were higher 21 sessions later · n = 9 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 3 May 2023 | +7.9% | +5.1% | +8.5% | +13.1% |
| 1 May 2024 | +6.8% | +5.1% | +8.6% | +12.4% |
| 10 Nov 2022 | +6.6% | -6.0% | +0.4% | -1.0% |
| 29 Apr 2026 | +6.5% | -9.2% | -7.0% | +6.5% |
| 14 Sep 2026 | +6.1% | -8.0% | -5.5% | pending |
| 22 Oct 2026 | +5.7% | -6.2% | pending | pending |
| 18 May 2026 | +5.5% | +0.0% | +2.2% | +4.3% |
| 24 Feb 2026 | +5.3% | +12.3% | -3.2% | -10.2% |
| 1 Jun 2026 | +5.1% | -2.7% | -0.1% | +5.3% |
| 16 Jul 2026 | +5.0% | -4.1% | -9.8% | -10.4% |