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Contract OI history

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Jan 15, 2027 EXPIRATION

CAH $210.00 Put

CAH270115P00210000

Latest saved OI2,394Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAH $210.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,3981,1990 2026-10-02: 2,389 OI2026-10-05: 2,389 OI2026-10-06: 2,398 OI2026-10-07: 2,398 OI2026-10-08: 2,398 OI2026-10-09: 2,398 OI2026-10-13: 2,398 OI2026-10-14: 2,398 OI2026-10-15: 2,398 OI2026-10-16: 2,398 OI2026-10-21: 2,394 OI2026-10-23: 2,394 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, 2026Viewing2,3940
Oct 21, 20262,394-4
Oct 16, 20262,3980
Oct 15, 20262,3980
Oct 14, 20262,3980
Oct 13, 20262,3980
Oct 09, 20262,3980
Oct 08, 20262,3980
Oct 07, 20262,3980
Oct 06, 20262,398+9
Oct 05, 20262,3890
Oct 02, 20262,389No prior observation