CTAS'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, 5 were higher 21 sessions later · n = 9 · could be chance.
| Date | One-day change | After 5 sessions | After 21 sessions | After 63 sessions |
|---|---|---|---|---|
| 19 Dec 2024 | -10.6% | +0.3% | +8.2% | +6.0% |
| 4 Apr 2025 | -7.1% | +8.3% | +12.1% | +13.3% |
| 9 Dec 2024 | -6.9% | +1.7% | -9.1% | -8.3% |
| 18 May 2022 | -6.0% | +2.6% | -3.0% | +23.3% |
| 26 Sep 2023 | -5.3% | +0.4% | +4.7% | +26.1% |
| 27 Oct 2026 | -4.9% | +4.2% | pending | pending |
| 13 Sep 2022 | -4.7% | -0.6% | -5.2% | +12.2% |
| 26 Mar 2026 | -4.5% | +3.3% | +3.1% | +1.8% |
| 13 Jun 2022 | -4.5% | +0.2% | +8.2% | +14.5% |
| 5 Jan 2022 | -4.5% | +0.1% | -6.0% | +6.5% |
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 |
|---|---|---|---|---|
| 27 Mar 2024 | +8.2% | -3.1% | -2.8% | +4.0% |
| 9 Apr 2025 | +7.3% | +0.4% | +5.3% | +5.8% |
| 16 Jul 2026 | +7.2% | -1.5% | -3.3% | +1.2% |
| 21 Dec 2023 | +6.6% | +2.2% | +1.4% | +8.0% |
| 10 Nov 2022 | +5.8% | -0.0% | +3.2% | +1.0% |
| 26 Mar 2025 | +5.8% | +1.9% | +1.8% | +7.9% |
| 18 Jul 2024 | +5.4% | -0.5% | +1.0% | +12.5% |
| 29 Mar 2023 | +4.9% | -2.9% | -2.0% | +5.6% |
| 16 Jul 2021 | +4.6% | +2.4% | +2.1% | +8.1% |
| 21 Dec 2022 | +4.6% | -1.6% | -5.2% | -5.8% |