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Contract OI history

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Jan 15, 2027 EXPIRATION

COHR $290.00 Put

COHR270115P00290000

Latest saved OI1,440Oct 23, 2026
Last change-8vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $290.00 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. 1,4537260 2026-10-02: 1,415 OI2026-10-05: 1,412 OI2026-10-06: 1,409 OI2026-10-07: 1,411 OI2026-10-08: 1,411 OI2026-10-09: 1,438 OI2026-10-13: 1,452 OI2026-10-14: 1,452 OI2026-10-15: 1,453 OI2026-10-16: 1,453 OI2026-10-21: 1,448 OI2026-10-23: 1,440 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, 2026Viewing1,440-8
Oct 21, 20261,448-5
Oct 16, 20261,4530
Oct 15, 20261,453+1
Oct 14, 20261,4520
Oct 13, 20261,452+14
Oct 09, 20261,438+27
Oct 08, 20261,4110
Oct 07, 20261,411+2
Oct 06, 20261,409-3
Oct 05, 20261,412-3
Oct 02, 20261,415No prior observation