VLO'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, 7 were higher 21 sessions later · n = 9 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 3 Apr 2025 | -14.5% | -4.6% | +4.4% | +26.8% |
| 27 Oct 2026 | -9.2% | +0.1% | pending | pending |
| 4 Apr 2025 | -8.4% | +5.7% | +11.8% | +43.2% |
| 9 May 2022 | -8.3% | +8.8% | +22.4% | -5.0% |
| 4 Apr 2023 | -8.0% | +4.9% | -18.1% | -10.1% |
| 23 Jun 2022 | -7.6% | +1.7% | +4.6% | +3.8% |
| 17 Apr 2026 | -7.5% | +5.5% | +15.6% | +40.1% |
| 16 Jun 2022 | -7.5% | -12.5% | -8.4% | -11.3% |
| 15 Mar 2022 | -6.8% | +10.9% | +23.1% | +59.7% |
| 26 Nov 2021 | -6.8% | +2.5% | +9.5% | +24.2% |
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 |
|---|---|---|---|---|
| 9 Apr 2025 | +10.2% | -7.6% | +6.1% | +33.2% |
| 5 Jan 2026 | +9.2% | -0.5% | +9.3% | +39.3% |
| 27 Jun 2022 | +8.0% | -7.7% | -0.7% | -12.0% |
| 8 Mar 2022 | +7.8% | -6.8% | +14.1% | +61.5% |
| 28 Sep 2022 | +7.5% | +8.5% | +17.9% | +16.0% |
| 23 Oct 2025 | +7.0% | -1.8% | +0.2% | +5.9% |
| 3 Feb 2026 | +6.7% | +3.8% | +18.6% | +31.8% |
| 11 Mar 2026 | +6.5% | +3.2% | +3.4% | +11.7% |
| 8 Jul 2026 | +6.3% | +3.5% | +7.1% | +48.2% |
| 3 Oct 2024 | +6.2% | -0.9% | -11.0% | -13.1% |