UNP'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 |
|---|---|---|---|---|
| 20 Oct 2022 | -6.8% | +5.1% | +12.9% | +13.4% |
| 3 Apr 2025 | -6.1% | -2.1% | -3.3% | +5.7% |
| 1 Apr 2022 | -4.8% | -6.9% | -10.7% | -18.7% |
| 4 Apr 2025 | -4.8% | +2.5% | -0.0% | +11.6% |
| 24 Jul 2025 | -4.5% | +0.7% | +3.3% | +2.1% |
| 28 May 2026 | -4.4% | -1.2% | +2.1% | +15.2% |
| 24 Oct 2024 | -4.4% | +0.6% | +5.0% | +8.6% |
| 8 Jul 2021 | -4.4% | +0.7% | +1.0% | -2.2% |
| 11 Mar 2025 | -4.2% | -0.3% | -6.0% | -4.1% |
| 22 Apr 2022 | -4.1% | -0.0% | -7.4% | -6.7% |
Biggest one-day rises
Of these 10, 1 were higher 21 sessions later · n = 10 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 26 Jul 2023 | +10.4% | -3.3% | -6.5% | -13.2% |
| 27 Feb 2023 | +10.1% | -1.6% | -7.3% | -9.0% |
| 23 Apr 2026 | +8.8% | -0.7% | -2.0% | +13.3% |
| 9 Apr 2025 | +7.3% | -3.1% | -3.2% | +5.8% |
| 12 May 2025 | +6.7% | -0.6% | -1.6% | -4.7% |
| 6 Nov 2024 | +6.3% | -3.3% | -6.0% | -1.1% |
| 23 Jan 2025 | +5.2% | +0.8% | -2.3% | -12.7% |
| 25 Apr 2024 | +5.0% | -2.4% | -4.7% | -0.7% |
| 10 Nov 2022 | +4.7% | -1.5% | +1.3% | -2.7% |
| 6 Jan 2023 | +4.4% | +0.6% | -1.4% | -5.8% |