BLK'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.
Learn more: Understanding unusual moves · Volume and confirmation
Close-to-close daily changes from 1 Apr 2021 to 11 Nov 2026 (1411 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 |
|---|---|---|---|---|
| 3 Apr 2025 | -7.7% | -3.3% | +3.7% | +21.9% |
| 6 Mar 2026 | -7.7% | -3.3% | +0.3% | +4.2% |
| 13 Sep 2022 | -7.4% | -3.5% | -17.6% | +10.7% |
| 4 Apr 2025 | -7.3% | +6.8% | +11.2% | +31.4% |
| 10 Jun 2022 | -6.4% | -5.7% | -3.4% | +13.7% |
| 15 Jul 2025 | -5.9% | +5.2% | +10.9% | +10.4% |
| 3 Feb 2025 | -5.7% | -2.8% | -4.5% | -8.7% |
| 4 Mar 2022 | -4.9% | -1.4% | +12.3% | -2.9% |
| 26 Aug 2022 | -4.8% | -2.7% | -13.8% | +9.9% |
| 5 May 2022 | -4.7% | -5.3% | +7.3% | +10.6% |
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 |
|---|---|---|---|---|
| 10 Nov 2022 | +13.5% | -5.1% | -6.0% | -2.3% |
| 9 Apr 2025 | +10.0% | -3.5% | +2.9% | +23.5% |
| 15 Jul 2026 | +6.6% | -3.4% | +8.2% | -2.5% |
| 13 Oct 2022 | +6.6% | +1.1% | +36.9% | +34.1% |
| 15 Jan 2026 | +5.9% | -2.3% | -7.3% | -9.0% |
| 21 Jun 2022 | +5.5% | +2.4% | +4.0% | +2.0% |
| 4 Nov 2026 | +5.4% | +0.2% | pending | pending |
| 14 Nov 2023 | +5.4% | +3.9% | +16.5% | +15.2% |
| 4 May 2022 | +5.4% | -9.8% | +1.7% | +5.4% |
| 6 Jan 2023 | +5.2% | +2.2% | +0.4% | -9.9% |