COP'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 10, 6 were higher 21 sessions later · n = 10 · could be chance.

DateOne-day changeAfter 5 sessionsAfter 21 sessionsAfter 63 sessions
3 Apr 2025-10.2%-12.6%-8.0%-2.0%
9 May 2022-9.7%+9.0%+25.9%-0.5%
4 Apr 2025-9.4%+0.1%+1.6%+12.0%
10 Apr 2025-9.0%+6.8%+10.8%+14.0%
23 Sep 2022-8.6%+3.1%+26.1%+14.2%
17 Jun 2022-8.5%-0.8%-2.5%+21.9%
5 Jul 2022-7.0%-1.4%+7.9%+32.3%
9 Nov 2022-6.8%+3.6%-11.8%-7.2%
3 Mar 2025-6.6%+0.3%+13.8%-5.6%
16 Jun 2022-6.3%-11.2%-12.9%+11.8%

Biggest one-day rises

Of these 10, 4 were higher 21 sessions later · n = 10 · could be chance.

DateOne-day changeAfter 5 sessionsAfter 21 sessionsAfter 63 sessions
9 Apr 2025+10.7%-5.6%-3.2%+5.4%
3 Apr 2023+9.3%-1.5%-11.4%-3.0%
3 Oct 2022+7.5%+6.2%+16.2%+3.9%
31 Oct 2024+6.4%+2.6%-2.4%-7.5%
21 Jun 2022+5.9%-3.3%-9.7%+14.3%
3 Nov 2022+5.8%-3.3%-10.4%-18.9%
9 Oct 2023+5.6%+2.9%-5.4%-7.0%
13 Oct 2022+5.5%-0.8%+9.1%-0.0%
5 May 2021+5.5%+0.5%+8.8%+0.6%
4 Oct 2022+5.1%-0.0%+9.4%-1.0%

COP in the rare moves record