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Contract OI history

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Nov 20, 2026 EXPIRATION

COHR $310.00 Put

COHR261120P00310000

Latest saved OI371Oct 23, 2026
Last change-6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $310.00 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. 3801900 2026-10-02: 354 OI2026-10-05: 354 OI2026-10-06: 359 OI2026-10-07: 358 OI2026-10-08: 358 OI2026-10-09: 378 OI2026-10-13: 378 OI2026-10-14: 378 OI2026-10-15: 380 OI2026-10-16: 379 OI2026-10-21: 377 OI2026-10-23: 371 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, 2026Viewing371-6
Oct 21, 2026377-2
Oct 16, 2026379-1
Oct 15, 2026380+2
Oct 14, 20263780
Oct 13, 20263780
Oct 09, 2026378+20
Oct 08, 20263580
Oct 07, 2026358-1
Oct 06, 2026359+5
Oct 05, 20263540
Oct 02, 2026354No prior observation