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Contract OI history

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Dec 18, 2026 EXPIRATION

CAH $240.00 Call

CAH261218C00240000

Latest saved OI727Oct 23, 2026
Last change+5vs 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. 7343670 2026-10-02: 665 OI2026-10-05: 667 OI2026-10-06: 667 OI2026-10-07: 667 OI2026-10-08: 667 OI2026-10-09: 668 OI2026-10-13: 672 OI2026-10-14: 734 OI2026-10-15: 727 OI2026-10-16: 726 OI2026-10-21: 722 OI2026-10-23: 727 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, 2026Viewing727+5
Oct 21, 2026722-4
Oct 16, 2026726-1
Oct 15, 2026727-7
Oct 14, 2026734+62
Oct 13, 2026672+4
Oct 09, 2026668+1
Oct 08, 20266670
Oct 07, 20266670
Oct 06, 20266670
Oct 05, 2026667+2
Oct 02, 2026665No prior observation