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Contract OI history

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Nov 20, 2026 EXPIRATION

CAH $240.00 Call

CAH261120C00240000

Latest saved OI313Oct 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
CAH $240.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3141570 2026-10-02: 303 OI2026-10-05: 302 OI2026-10-06: 311 OI2026-10-07: 305 OI2026-10-08: 310 OI2026-10-09: 309 OI2026-10-13: 292 OI2026-10-14: 305 OI2026-10-15: 309 OI2026-10-16: 310 OI2026-10-21: 314 OI2026-10-23: 313 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CAH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing313-1
Oct 21, 2026314+4
Oct 16, 2026310+1
Oct 15, 2026309+4
Oct 14, 2026305+13
Oct 13, 2026292-17
Oct 09, 2026309-1
Oct 08, 2026310+5
Oct 07, 2026305-6
Oct 06, 2026311+9
Oct 05, 2026302-1
Oct 02, 2026303No prior observation