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Contract OI history

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Oct 23, 2026 EXPIRATION

COHR $215.00 Put

COHR261023P00215000

Latest saved OI575Oct 23, 2026
Last change-20vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $215.00 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. 5952970 2026-10-02: 37 OI2026-10-05: 37 OI2026-10-06: 35 OI2026-10-07: 35 OI2026-10-08: 35 OI2026-10-09: 35 OI2026-10-13: 35 OI2026-10-14: 35 OI2026-10-15: 61 OI2026-10-16: 128 OI2026-10-21: 595 OI2026-10-23: 575 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, 2026Viewing575-20
Oct 21, 2026595+467
Oct 16, 2026128+67
Oct 15, 202661+26
Oct 14, 2026350
Oct 13, 2026350
Oct 09, 2026350
Oct 08, 2026350
Oct 07, 2026350
Oct 06, 202635-2
Oct 05, 2026370
Oct 02, 202637No prior observation