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Contract OI history

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Jan 15, 2027 EXPIRATION

COHR $280.00 Put

COHR270115P00280000

Latest saved OI684Oct 23, 2026
Last change-4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $280.00 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. 6883440 2026-10-02: 385 OI2026-10-05: 393 OI2026-10-06: 436 OI2026-10-07: 464 OI2026-10-08: 464 OI2026-10-09: 673 OI2026-10-13: 674 OI2026-10-14: 674 OI2026-10-15: 681 OI2026-10-16: 680 OI2026-10-21: 688 OI2026-10-23: 684 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, 2026Viewing684-4
Oct 21, 2026688+8
Oct 16, 2026680-1
Oct 15, 2026681+7
Oct 14, 20266740
Oct 13, 2026674+1
Oct 09, 2026673+209
Oct 08, 20264640
Oct 07, 2026464+28
Oct 06, 2026436+43
Oct 05, 2026393+8
Oct 02, 2026385No prior observation