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Contract OI history

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Jan 21, 2028 EXPIRATION

COHR $100.00 Put

COHR280121P00100000

Latest saved OI737Oct 23, 2026
Last change+155vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $100.00 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. 7373680 2026-10-02: 272 OI2026-10-05: 273 OI2026-10-06: 281 OI2026-10-07: 281 OI2026-10-08: 281 OI2026-10-09: 289 OI2026-10-13: 343 OI2026-10-14: 343 OI2026-10-15: 459 OI2026-10-16: 564 OI2026-10-21: 582 OI2026-10-23: 737 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, 2026Viewing737+155
Oct 21, 2026582+18
Oct 16, 2026564+105
Oct 15, 2026459+116
Oct 14, 20263430
Oct 13, 2026343+54
Oct 09, 2026289+8
Oct 08, 20262810
Oct 07, 20262810
Oct 06, 2026281+8
Oct 05, 2026273+1
Oct 02, 2026272No prior observation