GM'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 5 Apr 2021 to 4 Nov 2026 (1405 sessions). Later changes are measured from the close on the day of the move.
Biggest one-day falls
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 |
|---|---|---|---|---|
| 26 Nov 2024 | -9.0% | -2.6% | -0.7% | -13.3% |
| 4 Aug 2021 | -8.9% | +2.9% | -7.2% | +5.4% |
| 28 Jan 2025 | -8.9% | -2.9% | -4.8% | -6.0% |
| 22 Jul 2025 | -8.1% | +6.6% | +16.1% | +18.6% |
| 16 Jun 2022 | -8.1% | +10.8% | +9.5% | +27.5% |
| 13 Jun 2022 | -7.8% | +1.1% | -2.1% | +25.8% |
| 27 Mar 2025 | -7.4% | -2.8% | +0.1% | +5.6% |
| 20 Oct 2026 | -6.8% | +4.5% | pending | pending |
| 22 Dec 2022 | -6.6% | +0.3% | +8.3% | +3.0% |
| 13 Dec 2021 | -6.5% | -8.6% | +3.2% | -28.8% |
Biggest one-day rises
Of these 10, 8 were higher 21 sessions later · n = 10 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 21 Oct 2025 | +14.9% | +4.9% | +2.8% | +21.8% |
| 22 Oct 2024 | +9.8% | -4.1% | +2.1% | +0.6% |
| 29 Nov 2023 | +9.4% | +4.4% | +14.0% | +30.5% |
| 4 Oct 2022 | +8.9% | -10.4% | +7.6% | -2.9% |
| 27 Jan 2026 | +8.7% | -0.8% | -6.5% | -8.6% |
| 23 Jul 2025 | +8.7% | -1.9% | +6.4% | +25.4% |
| 31 Jan 2023 | +8.3% | +5.3% | +0.8% | -15.7% |
| 30 Jan 2024 | +7.8% | -0.3% | +7.7% | +17.1% |
| 9 Apr 2025 | +7.7% | -3.3% | +3.8% | +17.1% |
| 4 Jan 2022 | +7.5% | -6.5% | -19.2% | -37.0% |