HUM'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, 6 were higher 21 sessions later · n = 10 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 27 Jan 2026 | -21.1% | -7.2% | -10.1% | +10.5% |
| 6 Jan 2022 | -19.4% | +7.1% | +17.1% | +24.7% |
| 2 Apr 2024 | -13.4% | +5.0% | +3.2% | +23.5% |
| 9 Sep 2025 | -12.0% | -0.3% | +9.2% | -6.1% |
| 2 Oct 2024 | -11.8% | -0.4% | +4.6% | +2.9% |
| 1 Oct 2024 | -11.8% | -13.0% | -4.7% | -8.9% |
| 25 Jan 2024 | -11.7% | +5.8% | +1.3% | -12.1% |
| 14 Jun 2023 | -11.2% | +0.3% | -4.3% | +3.8% |
| 31 Jul 2024 | -10.6% | -4.4% | -2.8% | -28.5% |
| 17 Dec 2024 | -10.2% | +9.2% | +22.1% | +14.2% |
Biggest one-day rises
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 |
|---|---|---|---|---|
| 30 Jul 2025 | +12.4% | -1.9% | +13.9% | +12.7% |
| 9 Oct 2026 | +11.6% | -4.3% | pending | pending |
| 8 May 2026 | +11.3% | +11.0% | +32.1% | +40.3% |
| 6 Nov 2024 | +10.7% | +0.3% | -2.4% | -7.2% |
| 8 Apr 2025 | +10.7% | +1.7% | -10.1% | -17.3% |
| 3 Oct 2025 | +10.6% | -1.2% | -1.3% | -2.8% |
| 15 Sep 2022 | +8.4% | -0.7% | +0.7% | +5.0% |
| 7 Apr 2026 | +7.9% | -0.5% | +24.9% | +101.0% |
| 12 May 2026 | +7.7% | +5.1% | +24.8% | +31.7% |
| 1 Jun 2026 | +7.5% | +8.4% | +24.7% | +16.7% |