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Contract OI history

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Jan 15, 2027 EXPIRATION

CI $210.00 Put

CI270115P00210000

Latest saved OI282Oct 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
CI $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. 2871430 2026-10-02: 283 OI2026-10-05: 283 OI2026-10-06: 283 OI2026-10-07: 283 OI2026-10-08: 283 OI2026-10-09: 286 OI2026-10-13: 286 OI2026-10-14: 286 OI2026-10-15: 286 OI2026-10-16: 286 OI2026-10-21: 287 OI2026-10-23: 282 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing282-5
Oct 21, 2026287+1
Oct 16, 20262860
Oct 15, 20262860
Oct 14, 20262860
Oct 13, 20262860
Oct 09, 2026286+3
Oct 08, 20262830
Oct 07, 20262830
Oct 06, 20262830
Oct 05, 20262830
Oct 02, 2026283No prior observation