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Contract OI history

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Apr 16, 2027 EXPIRATION

COHR $220.00 Put

COHR270416P00220000

Latest saved OI544Oct 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 $220.00 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. 5442720 2026-10-02: 267 OI2026-10-05: 75 OI2026-10-06: 79 OI2026-10-07: 80 OI2026-10-08: 80 OI2026-10-09: 107 OI2026-10-13: 110 OI2026-10-14: 110 OI2026-10-15: 114 OI2026-10-16: 115 OI2026-10-21: 536 OI2026-10-23: 544 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, 2026Viewing544+8
Oct 21, 2026536+421
Oct 16, 2026115+1
Oct 15, 2026114+4
Oct 14, 20261100
Oct 13, 2026110+3
Oct 09, 2026107+27
Oct 08, 2026800
Oct 07, 202680+1
Oct 06, 202679+4
Oct 05, 202675-192
Oct 02, 2026267No prior observation