EXC'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 3 Mar 2021 to 4 Nov 2026 (1427 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 |
|---|---|---|---|---|
| 14 Dec 2023 | -7.6% | -7.5% | -6.1% | -2.4% |
| 15 Dec 2023 | -6.4% | -0.6% | -0.5% | +4.8% |
| 5 Jul 2022 | -5.3% | +1.4% | +1.6% | -11.1% |
| 13 Jun 2022 | -5.1% | -4.8% | +1.1% | +1.5% |
| 29 Sep 2022 | -4.9% | +0.0% | +2.7% | +15.3% |
| 13 Sep 2022 | -4.5% | -2.8% | -18.3% | -2.6% |
| 12 Jun 2024 | -4.0% | +0.5% | +1.7% | +15.9% |
| 12 Oct 2022 | -4.0% | +2.5% | +8.5% | +21.7% |
| 4 Apr 2025 | -4.0% | +1.4% | +2.1% | -4.3% |
| 11 Apr 2022 | -3.8% | +2.6% | -1.3% | -9.0% |
Biggest one-day rises
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 |
|---|---|---|---|---|
| 12 Feb 2026 | +7.0% | +0.5% | +5.8% | -6.6% |
| 21 Feb 2024 | +4.3% | -1.1% | +3.4% | +8.6% |
| 22 Oct 2026 | +4.2% | +2.4% | pending | pending |
| 28 Jul 2022 | +4.1% | -2.6% | -2.7% | -18.1% |
| 6 Apr 2022 | +4.0% | -2.2% | -5.3% | -10.3% |
| 4 Oct 2022 | +4.0% | -6.3% | -4.9% | +10.3% |
| 13 Dec 2023 | +4.0% | -15.1% | -12.9% | -10.1% |
| 13 May 2021 | +3.9% | +3.0% | +6.1% | +9.0% |
| 2 Feb 2022 | +3.9% | -0.6% | +4.2% | +12.7% |
| 13 Oct 2022 | +3.5% | -4.5% | +5.0% | +17.5% |