SPGI'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, 5 were higher 21 sessions later · n = 10 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 3 Feb 2026 | -11.3% | -14.3% | -3.7% | -9.5% |
| 10 Feb 2026 | -9.7% | +4.6% | +4.6% | +5.8% |
| 4 Apr 2025 | -7.7% | +3.0% | +11.1% | +16.8% |
| 27 Jul 2023 | -7.6% | -3.0% | -1.6% | -11.6% |
| 18 Sep 2025 | -6.7% | -4.5% | -6.8% | +0.5% |
| 7 Mar 2022 | -5.4% | -2.2% | +6.8% | -12.0% |
| 8 Feb 2024 | -5.0% | -2.8% | -2.1% | -0.8% |
| 1 Jun 2022 | -5.0% | +2.0% | +3.4% | +6.3% |
| 20 Jan 2026 | -5.0% | +1.5% | -19.7% | -14.3% |
| 9 May 2022 | -4.9% | +2.0% | +3.3% | +15.0% |
Biggest one-day rises
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 |
|---|---|---|---|---|
| 10 Nov 2022 | +10.2% | +0.2% | +0.5% | +7.3% |
| 1 Jul 2026 | +7.7% | +4.3% | -0.7% | -4.9% |
| 9 Apr 2025 | +7.4% | -2.1% | +7.1% | +11.4% |
| 2 Nov 2023 | +7.0% | +3.1% | +13.1% | +20.4% |
| 2 Jul 2026 | +6.0% | -2.1% | -5.4% | -11.8% |
| 11 Feb 2025 | +4.9% | +0.4% | -11.1% | -4.4% |
| 27 Apr 2023 | +4.6% | -2.3% | +1.7% | +10.6% |
| 3 Sep 2026 | +4.4% | -8.8% | -13.2% | pending |
| 10 Aug 2022 | +4.3% | -1.4% | -5.8% | -18.4% |
| 31 Jul 2025 | +4.1% | +1.5% | -0.5% | -14.2% |