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Contract OI history

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Dec 18, 2026 EXPIRATION

CI $240.00 Put

CI261218P00240000

Latest saved OI112Oct 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
CI $240.00 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. 118590 2026-10-02: 104 OI2026-10-05: 117 OI2026-10-06: 117 OI2026-10-07: 118 OI2026-10-08: 117 OI2026-10-09: 117 OI2026-10-13: 117 OI2026-10-14: 117 OI2026-10-15: 116 OI2026-10-16: 116 OI2026-10-21: 113 OI2026-10-23: 112 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, 2026Viewing112-1
Oct 21, 2026113-3
Oct 16, 20261160
Oct 15, 2026116-1
Oct 14, 20261170
Oct 13, 20261170
Oct 09, 20261170
Oct 08, 2026117-1
Oct 07, 2026118+1
Oct 06, 20261170
Oct 05, 2026117+13
Oct 02, 2026104No prior observation