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Contract OI history

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Dec 18, 2026 EXPIRATION

COHR $250.00 Put

COHR261218P00250000

Latest saved OI1,641Oct 23, 2026
Last change+70vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $250.00 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. 1,6418200 2026-10-02: 908 OI2026-10-05: 919 OI2026-10-06: 919 OI2026-10-07: 967 OI2026-10-08: 967 OI2026-10-09: 1,248 OI2026-10-13: 1,573 OI2026-10-14: 1,573 OI2026-10-15: 1,592 OI2026-10-16: 1,601 OI2026-10-21: 1,571 OI2026-10-23: 1,641 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, 2026Viewing1,641+70
Oct 21, 20261,571-30
Oct 16, 20261,601+9
Oct 15, 20261,592+19
Oct 14, 20261,5730
Oct 13, 20261,573+325
Oct 09, 20261,248+281
Oct 08, 20269670
Oct 07, 2026967+48
Oct 06, 20269190
Oct 05, 2026919+11
Oct 02, 2026908No prior observation