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Contract OI history

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Oct 30, 2026 EXPIRATION

COHR $220.00 Put

COHR261030P00220000

Latest saved OI611Oct 23, 2026
Last change+144vs 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. 6113050 2026-10-02: 197 OI2026-10-05: 263 OI2026-10-06: 281 OI2026-10-07: 280 OI2026-10-08: 280 OI2026-10-09: 282 OI2026-10-13: 288 OI2026-10-14: 288 OI2026-10-15: 282 OI2026-10-16: 311 OI2026-10-21: 467 OI2026-10-23: 611 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, 2026Viewing611+144
Oct 21, 2026467+156
Oct 16, 2026311+29
Oct 15, 2026282-6
Oct 14, 20262880
Oct 13, 2026288+6
Oct 09, 2026282+2
Oct 08, 20262800
Oct 07, 2026280-1
Oct 06, 2026281+18
Oct 05, 2026263+66
Oct 02, 2026197No prior observation