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Contract OI history

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Mar 19, 2027 EXPIRATION

CAH $270.00 Call

CAH270319C00270000

Latest saved OI258Oct 23, 2026
Last change-46vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAH $270.00 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. 3151570 2026-10-02: 110 OI2026-10-05: 136 OI2026-10-06: 136 OI2026-10-07: 202 OI2026-10-08: 230 OI2026-10-09: 262 OI2026-10-13: 262 OI2026-10-14: 311 OI2026-10-15: 315 OI2026-10-16: 305 OI2026-10-21: 304 OI2026-10-23: 258 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, 2026Viewing258-46
Oct 21, 2026304-1
Oct 16, 2026305-10
Oct 15, 2026315+4
Oct 14, 2026311+49
Oct 13, 20262620
Oct 09, 2026262+32
Oct 08, 2026230+28
Oct 07, 2026202+66
Oct 06, 20261360
Oct 05, 2026136+26
Oct 02, 2026110No prior observation