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Contract OI history

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Jun 17, 2027 EXPIRATION

COHR $230.00 Put

COHR270617P00230000

Latest saved OI778Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $230.00 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. 7813900 2026-10-02: 208 OI2026-10-05: 208 OI2026-10-06: 208 OI2026-10-07: 208 OI2026-10-08: 208 OI2026-10-09: 586 OI2026-10-13: 626 OI2026-10-14: 626 OI2026-10-15: 648 OI2026-10-16: 658 OI2026-10-21: 781 OI2026-10-23: 778 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, 2026Viewing778-3
Oct 21, 2026781+123
Oct 16, 2026658+10
Oct 15, 2026648+22
Oct 14, 20266260
Oct 13, 2026626+40
Oct 09, 2026586+378
Oct 08, 20262080
Oct 07, 20262080
Oct 06, 20262080
Oct 05, 20262080
Oct 02, 2026208No prior observation