Contract OI history

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Jan 15, 2027 EXPIRATION

COHR $230.00 Put

COHR270115P00230000

Latest saved OI1,475Oct 23, 2026
Last change+160vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $230.00 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. 1,4757370 2026-10-02: 775 OI2026-10-05: 766 OI2026-10-06: 757 OI2026-10-07: 778 OI2026-10-08: 778 OI2026-10-09: 944 OI2026-10-13: 962 OI2026-10-14: 962 OI2026-10-15: 964 OI2026-10-16: 1,021 OI2026-10-21: 1,315 OI2026-10-23: 1,475 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, 2026Viewing1,475+160
Oct 21, 20261,315+294
Oct 16, 20261,021+57
Oct 15, 2026964+2
Oct 14, 20269620
Oct 13, 2026962+18
Oct 09, 2026944+166
Oct 08, 20267780
Oct 07, 2026778+21
Oct 06, 2026757-9
Oct 05, 2026766-9
Oct 02, 2026775No prior observation