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Contract OI history

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Jan 21, 2028 EXPIRATION

COHR $300.00 Put

COHR280121P00300000

Latest saved OI292Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $300.00 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. 2951470 2026-10-02: 294 OI2026-10-05: 294 OI2026-10-06: 293 OI2026-10-07: 294 OI2026-10-08: 294 OI2026-10-09: 295 OI2026-10-13: 295 OI2026-10-14: 295 OI2026-10-15: 294 OI2026-10-16: 294 OI2026-10-21: 294 OI2026-10-23: 292 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, 2026Viewing292-2
Oct 21, 20262940
Oct 16, 20262940
Oct 15, 2026294-1
Oct 14, 20262950
Oct 13, 20262950
Oct 09, 2026295+1
Oct 08, 20262940
Oct 07, 2026294+1
Oct 06, 2026293-1
Oct 05, 20262940
Oct 02, 2026294No prior observation