M'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 5 Nov 2026 (1407 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 |
|---|---|---|---|---|
| 22 Aug 2023 | -14.1% | -3.2% | -13.1% | +19.9% |
| 7 Mar 2022 | -13.6% | +11.8% | +16.0% | +13.6% |
| 3 Apr 2025 | -13.5% | +0.4% | +3.8% | +10.8% |
| 21 Aug 2024 | -12.9% | -0.5% | +0.2% | -0.8% |
| 15 Jul 2024 | -11.7% | -1.8% | -4.8% | -5.2% |
| 18 May 2022 | -10.7% | +0.9% | +5.2% | +7.6% |
| 16 Jun 2022 | -9.6% | +5.8% | -8.3% | -14.9% |
| 11 May 2022 | -8.9% | -6.2% | +13.6% | -3.0% |
| 30 Sep 2021 | -8.5% | -0.3% | +17.1% | +19.5% |
| 12 Dec 2023 | -8.3% | +7.3% | -1.8% | +14.8% |
Biggest one-day rises
Of these 10, 4 were higher 21 sessions later · n = 10 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 18 Nov 2021 | +21.2% | -18.4% | -36.5% | -30.8% |
| 3 Sep 2025 | +20.7% | +4.7% | +11.7% | +39.5% |
| 19 Aug 2021 | +19.6% | +4.3% | +0.5% | +43.7% |
| 11 Dec 2023 | +19.4% | -2.6% | -9.6% | +1.7% |
| 26 May 2022 | +19.3% | +3.9% | -14.8% | -18.8% |
| 9 Apr 2025 | +18.5% | -7.2% | -2.1% | +7.2% |
| 24 Jan 2022 | +18.0% | -5.4% | -14.5% | -7.0% |
| 18 Oct 2021 | +17.5% | -5.0% | +14.3% | -10.2% |
| 17 Nov 2022 | +15.0% | +4.3% | -10.6% | -7.5% |
| 14 May 2021 | +14.0% | +0.7% | +2.0% | +4.6% |