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Contract OI history

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Dec 18, 2026 EXPIRATION

CI $220.00 Put

CI261218P00220000

Latest saved OI181Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CI $220.00 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. 182910 2026-10-02: 181 OI2026-10-05: 182 OI2026-10-06: 182 OI2026-10-07: 182 OI2026-10-08: 182 OI2026-10-09: 182 OI2026-10-13: 182 OI2026-10-14: 182 OI2026-10-15: 182 OI2026-10-16: 181 OI2026-10-21: 181 OI2026-10-23: 181 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, 2026Viewing1810
Oct 21, 20261810
Oct 16, 2026181-1
Oct 15, 20261820
Oct 14, 20261820
Oct 13, 20261820
Oct 09, 20261820
Oct 08, 20261820
Oct 07, 20261820
Oct 06, 20261820
Oct 05, 2026182+1
Oct 02, 2026181No prior observation