IR'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 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 |
|---|---|---|---|---|
| 1 Aug 2025 | -11.4% | +1.2% | +3.9% | +5.0% |
| 3 Apr 2025 | -10.0% | -3.5% | +4.7% | +18.1% |
| 1 Aug 2024 | -9.1% | -0.8% | +0.3% | +6.7% |
| 14 Feb 2025 | -7.4% | -3.3% | -4.8% | -1.9% |
| 4 Mar 2022 | -6.8% | +2.8% | +5.7% | +5.5% |
| 3 May 2024 | -6.6% | +5.2% | +1.5% | +0.4% |
| 22 Oct 2026 | -6.3% | +8.0% | pending | pending |
| 15 Apr 2026 | -5.6% | +0.4% | -13.9% | +1.7% |
| 16 Jun 2022 | -5.6% | +3.0% | +2.8% | +12.2% |
| 4 Apr 2023 | -5.2% | +2.1% | +3.3% | +15.1% |
Biggest one-day rises
Of these 9, 5 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 | +9.8% | -2.7% | +8.2% | +21.4% |
| 16 Jul 2026 | +7.1% | -0.6% | -1.7% | -8.1% |
| 27 Apr 2023 | +6.7% | +0.2% | +3.4% | +12.7% |
| 8 Apr 2026 | +6.4% | -1.5% | -8.5% | -9.0% |
| 12 May 2025 | +6.2% | -0.8% | -1.2% | -6.9% |
| 29 Oct 2026 | +6.0% | pending | pending | pending |
| 2 Nov 2023 | +5.8% | +2.2% | +9.8% | +26.4% |
| 24 Jun 2022 | +5.8% | -2.4% | +3.1% | +1.7% |
| 9 Mar 2022 | +5.7% | +3.4% | -1.7% | +3.6% |
| 2 Jun 2023 | +5.5% | +1.8% | +4.5% | +14.0% |