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Contract OI history

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Dec 18, 2026 EXPIRATION

CAH $260.00 Call

CAH261218C00260000

Latest saved OI356Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAH $260.00 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. 3561780 2026-10-02: 285 OI2026-10-05: 285 OI2026-10-06: 285 OI2026-10-07: 285 OI2026-10-08: 285 OI2026-10-09: 286 OI2026-10-13: 288 OI2026-10-14: 288 OI2026-10-15: 286 OI2026-10-16: 352 OI2026-10-21: 354 OI2026-10-23: 356 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, 2026Viewing356+2
Oct 21, 2026354+2
Oct 16, 2026352+66
Oct 15, 2026286-2
Oct 14, 20262880
Oct 13, 2026288+2
Oct 09, 2026286+1
Oct 08, 20262850
Oct 07, 20262850
Oct 06, 20262850
Oct 05, 20262850
Oct 02, 2026285No prior observation