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Contract OI history

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Jan 15, 2027 EXPIRATION

COHR $180.00 Put

COHR270115P00180000

Latest saved OI1,395Oct 23, 2026
Last change+113vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $180.00 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. 1,3956970 2026-10-02: 438 OI2026-10-05: 408 OI2026-10-06: 404 OI2026-10-07: 405 OI2026-10-08: 405 OI2026-10-09: 405 OI2026-10-13: 432 OI2026-10-14: 432 OI2026-10-15: 433 OI2026-10-16: 893 OI2026-10-21: 1,282 OI2026-10-23: 1,395 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, 2026Viewing1,395+113
Oct 21, 20261,282+389
Oct 16, 2026893+460
Oct 15, 2026433+1
Oct 14, 20264320
Oct 13, 2026432+27
Oct 09, 20264050
Oct 08, 20264050
Oct 07, 2026405+1
Oct 06, 2026404-4
Oct 05, 2026408-30
Oct 02, 2026438No prior observation