IBB'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 30 Mar 2021 to 5 Nov 2026 (1409 sessions). Later changes are measured from the close on the day of the move.
Biggest one-day falls
Of these 9, 6 were higher 21 sessions later · n = 9 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 6 May 2025 | -5.8% | +0.8% | +5.4% | +10.9% |
| 4 Apr 2025 | -5.4% | -0.2% | +1.2% | +10.4% |
| 9 May 2022 | -5.2% | +5.6% | +10.1% | +21.1% |
| 5 Nov 2026 | -5.0% | pending | pending | pending |
| 15 Nov 2024 | -4.8% | +3.4% | +3.2% | +4.5% |
| 10 Apr 2025 | -4.6% | +4.6% | +7.9% | +16.6% |
| 13 Sep 2022 | -4.5% | -1.9% | -3.1% | +9.1% |
| 13 Jun 2022 | -4.1% | +5.6% | +14.6% | +15.9% |
| 18 Jan 2022 | -4.0% | -4.4% | -2.7% | -3.9% |
| 5 Jan 2022 | -3.9% | -0.4% | -8.3% | -7.0% |
Biggest one-day rises
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 |
|---|---|---|---|---|
| 19 Aug 2026 | +6.6% | -0.8% | -5.8% | pending |
| 9 Apr 2025 | +5.9% | -0.7% | -1.7% | +10.9% |
| 12 May 2025 | +4.6% | +0.4% | +4.8% | +9.8% |
| 31 Mar 2026 | +4.3% | +1.7% | -0.2% | +12.4% |
| 23 Jun 2022 | +4.2% | -0.3% | +3.9% | -1.1% |
| 13 Dec 2023 | +4.2% | -1.9% | +3.4% | +3.4% |
| 16 Mar 2022 | +4.0% | +1.9% | +3.9% | -13.7% |
| 28 Sep 2022 | +3.9% | +3.0% | +4.7% | +7.6% |
| 7 Dec 2021 | +3.9% | -1.6% | -5.7% | -17.7% |
| 28 Oct 2022 | +3.8% | -1.0% | +2.0% | +5.3% |