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Contract OI history

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Jan 21, 2028 EXPIRATION

COHR $170.00 Put

COHR280121P00170000

Latest saved OI279Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $170.00 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. 2791390 2026-10-02: 275 OI2026-10-05: 276 OI2026-10-06: 276 OI2026-10-07: 276 OI2026-10-08: 276 OI2026-10-09: 277 OI2026-10-13: 277 OI2026-10-14: 277 OI2026-10-15: 277 OI2026-10-16: 277 OI2026-10-21: 278 OI2026-10-23: 279 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, 2026Viewing279+1
Oct 21, 2026278+1
Oct 16, 20262770
Oct 15, 20262770
Oct 14, 20262770
Oct 13, 20262770
Oct 09, 2026277+1
Oct 08, 20262760
Oct 07, 20262760
Oct 06, 20262760
Oct 05, 2026276+1
Oct 02, 2026275No prior observation