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Contract OI history

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Dec 18, 2026 EXPIRATION

COHR $190.00 Put

COHR261218P00190000

Latest saved OI528Oct 23, 2026
Last change+43vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $190.00 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. 5282640 2026-10-02: 345 OI2026-10-05: 347 OI2026-10-06: 346 OI2026-10-07: 356 OI2026-10-08: 356 OI2026-10-09: 361 OI2026-10-13: 375 OI2026-10-14: 375 OI2026-10-15: 389 OI2026-10-16: 436 OI2026-10-21: 485 OI2026-10-23: 528 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, 2026Viewing528+43
Oct 21, 2026485+49
Oct 16, 2026436+47
Oct 15, 2026389+14
Oct 14, 20263750
Oct 13, 2026375+14
Oct 09, 2026361+5
Oct 08, 20263560
Oct 07, 2026356+10
Oct 06, 2026346-1
Oct 05, 2026347+2
Oct 02, 2026345No prior observation