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Contract OI history

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Dec 18, 2026 EXPIRATION

CAH $250.00 Call

CAH261218C00250000

Latest saved OI165Oct 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 $250.00 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. 167830 2026-10-02: 144 OI2026-10-05: 144 OI2026-10-06: 144 OI2026-10-07: 146 OI2026-10-08: 146 OI2026-10-09: 148 OI2026-10-13: 149 OI2026-10-14: 165 OI2026-10-15: 167 OI2026-10-16: 163 OI2026-10-21: 166 OI2026-10-23: 165 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, 2026Viewing165-1
Oct 21, 2026166+3
Oct 16, 2026163-4
Oct 15, 2026167+2
Oct 14, 2026165+16
Oct 13, 2026149+1
Oct 09, 2026148+2
Oct 08, 20261460
Oct 07, 2026146+2
Oct 06, 20261440
Oct 05, 20261440
Oct 02, 2026144No prior observation