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Contract OI history

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Mar 19, 2027 EXPIRATION

COHR $230.00 Put

COHR270319P00230000

Latest saved OI556Oct 23, 2026
Last change-10vs 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. 5662830 2026-10-02: 493 OI2026-10-05: 493 OI2026-10-06: 495 OI2026-10-07: 496 OI2026-10-08: 496 OI2026-10-09: 501 OI2026-10-13: 507 OI2026-10-14: 507 OI2026-10-15: 517 OI2026-10-16: 559 OI2026-10-21: 566 OI2026-10-23: 556 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, 2026Viewing556-10
Oct 21, 2026566+7
Oct 16, 2026559+42
Oct 15, 2026517+10
Oct 14, 20265070
Oct 13, 2026507+6
Oct 09, 2026501+5
Oct 08, 20264960
Oct 07, 2026496+1
Oct 06, 2026495+2
Oct 05, 20264930
Oct 02, 2026493No prior observation