PWR'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 8, 3 were higher 21 sessions later · n = 8 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 27 Jan 2025 | -18.3% | +3.2% | -8.1% | -0.6% |
| 4 Nov 2026 | -11.7% | pending | pending | pending |
| 21 Apr 2022 | -9.1% | -5.1% | -9.8% | +6.3% |
| 22 Oct 2026 | -8.1% | +15.0% | pending | pending |
| 16 Jun 2022 | -7.6% | +9.8% | +14.3% | +19.8% |
| 9 May 2022 | -6.6% | +2.1% | +18.8% | +23.8% |
| 30 Nov 2021 | -6.5% | +2.8% | -0.8% | -3.1% |
| 3 Sep 2024 | -6.4% | -2.9% | +16.1% | +32.9% |
| 12 Dec 2025 | -6.2% | -2.6% | -0.2% | +30.5% |
| 18 May 2026 | -6.1% | +2.6% | -1.1% | -3.7% |
Biggest one-day rises
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 |
|---|---|---|---|---|
| 30 Jul 2026 | +17.3% | +1.5% | -8.4% | -7.8% |
| 30 Apr 2026 | +15.8% | +3.2% | -5.5% | -8.3% |
| 2 Sep 2021 | +12.1% | +1.5% | -0.7% | -0.3% |
| 24 Feb 2022 | +10.6% | +3.3% | +23.5% | +8.9% |
| 22 Feb 2024 | +10.3% | +3.7% | +9.9% | +16.4% |
| 9 Apr 2025 | +10.0% | -0.1% | +20.9% | +42.4% |
| 1 May 2025 | +10.0% | +1.3% | +7.3% | +22.8% |
| 2 Nov 2023 | +9.7% | -3.1% | +8.3% | +15.5% |
| 28 Jul 2022 | +8.4% | -8.2% | -0.5% | -3.3% |
| 8 Mar 2022 | +8.2% | +4.1% | +10.8% | +14.5% |