MMM'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, 4 were higher 21 sessions later · n = 10 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 23 Jan 2024 | -11.0% | -0.4% | -2.4% | +17.7% |
| 26 Aug 2022 | -9.5% | -5.8% | -13.0% | +1.1% |
| 4 Apr 2025 | -9.2% | +7.1% | +8.8% | +21.7% |
| 20 Jan 2026 | -6.9% | +1.2% | +5.7% | -4.7% |
| 24 Jan 2023 | -6.2% | +0.1% | -4.0% | -8.0% |
| 13 Sep 2023 | -5.7% | -2.0% | -11.9% | +3.1% |
| 3 Apr 2025 | -5.4% | -4.8% | +0.8% | +9.2% |
| 4 Mar 2025 | -4.9% | +1.2% | +1.3% | +2.1% |
| 7 Sep 2021 | -4.5% | -1.7% | -3.9% | -3.7% |
| 10 Jun 2022 | -4.5% | -5.7% | -6.7% | -8.8% |
Biggest one-day rises
Of these 8, 5 were higher 21 sessions later · n = 8 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 26 Jul 2024 | +23.0% | -1.5% | +4.2% | -0.0% |
| 4 Nov 2026 | +9.5% | pending | pending | pending |
| 9 Apr 2025 | +8.8% | -5.7% | +3.1% | +13.2% |
| 2 Jun 2023 | +8.8% | -2.6% | -3.8% | +5.9% |
| 22 Apr 2025 | +8.1% | +1.5% | +9.6% | +11.2% |
| 21 Oct 2025 | +7.7% | +0.1% | -0.0% | -3.5% |
| 21 Jul 2026 | +7.3% | +6.8% | +5.8% | -5.1% |
| 1 Apr 2024 | +6.0% | -2.2% | +2.6% | +7.8% |
| 6 Nov 2024 | +5.8% | -1.8% | -0.1% | +12.4% |
| 20 Oct 2026 | +5.8% | +0.1% | pending | pending |