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Contract OI history

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Dec 18, 2026 EXPIRATION

COHR $240.00 Put

COHR261218P00240000

Latest saved OI1,162Oct 23, 2026
Last change+6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $240.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,1625810 2026-10-02: 613 OI2026-10-05: 623 OI2026-10-06: 656 OI2026-10-07: 657 OI2026-10-08: 657 OI2026-10-09: 679 OI2026-10-13: 689 OI2026-10-14: 689 OI2026-10-15: 699 OI2026-10-16: 1,118 OI2026-10-21: 1,156 OI2026-10-23: 1,162 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

COHR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,162+6
Oct 21, 20261,156+38
Oct 16, 20261,118+419
Oct 15, 2026699+10
Oct 14, 20266890
Oct 13, 2026689+10
Oct 09, 2026679+22
Oct 08, 20266570
Oct 07, 2026657+1
Oct 06, 2026656+33
Oct 05, 2026623+10
Oct 02, 2026613No prior observation