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Contract OI history

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Jan 15, 2027 EXPIRATION

COHR $380.00 Put

COHR270115P00380000

Latest saved OI331Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $380.00 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. 3311650 2026-10-02: 324 OI2026-10-05: 324 OI2026-10-06: 325 OI2026-10-07: 325 OI2026-10-08: 325 OI2026-10-09: 326 OI2026-10-13: 326 OI2026-10-14: 326 OI2026-10-15: 326 OI2026-10-16: 326 OI2026-10-21: 331 OI2026-10-23: 331 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, 2026Viewing3310
Oct 21, 2026331+5
Oct 16, 20263260
Oct 15, 20263260
Oct 14, 20263260
Oct 13, 20263260
Oct 09, 2026326+1
Oct 08, 20263250
Oct 07, 20263250
Oct 06, 2026325+1
Oct 05, 20263240
Oct 02, 2026324No prior observation