GPN'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 |
|---|---|---|---|---|
| 17 Apr 2025 | -17.4% | +4.3% | +16.4% | +17.2% |
| 3 Nov 2022 | -12.3% | +9.1% | +7.5% | +18.1% |
| 2 Aug 2021 | -11.2% | +1.2% | -5.3% | -16.6% |
| 1 May 2024 | -11.2% | +1.8% | -6.6% | -9.8% |
| 2 Nov 2021 | -9.2% | +0.4% | -8.0% | +14.2% |
| 2 May 2022 | -9.2% | -4.8% | +2.5% | +1.9% |
| 31 Oct 2022 | -8.8% | -13.2% | -9.2% | +1.3% |
| 4 Apr 2025 | -8.7% | +0.1% | -6.6% | -4.7% |
| 1 May 2023 | -8.6% | +1.6% | -5.2% | +17.5% |
| 3 Jun 2026 | -8.3% | -7.9% | +14.1% | +36.8% |
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 |
|---|---|---|---|---|
| 18 Feb 2026 | +16.5% | -4.1% | -16.1% | -16.4% |
| 9 Apr 2025 | +13.6% | -6.8% | -10.8% | -12.4% |
| 30 Oct 2026 | +13.0% | pending | pending | pending |
| 1 Aug 2023 | +9.5% | +3.0% | +5.3% | -13.9% |
| 6 Aug 2025 | +9.1% | +1.1% | +2.6% | -6.5% |
| 8 Sep 2021 | +7.2% | -2.5% | -5.8% | -23.6% |
| 6 Nov 2024 | +7.1% | +0.9% | +2.4% | -4.5% |
| 13 Aug 2026 | +7.1% | -2.7% | -4.9% | pending |
| 7 Aug 2024 | +6.9% | +5.7% | +8.5% | +8.2% |
| 21 Dec 2021 | +6.6% | +1.8% | +6.8% | +2.0% |