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Contract OI history

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Mar 19, 2027 EXPIRATION

CI $270.00 Put

CI270319P00270000

Latest saved OI1,133Oct 23, 2026
Last change+109vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CI $270.00 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. 1,1335660 2026-10-02: 1,023 OI2026-10-05: 1,022 OI2026-10-06: 1,022 OI2026-10-07: 1,021 OI2026-10-08: 1,022 OI2026-10-09: 1,022 OI2026-10-13: 1,022 OI2026-10-14: 1,022 OI2026-10-15: 1,022 OI2026-10-16: 1,022 OI2026-10-21: 1,024 OI2026-10-23: 1,133 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, 2026Viewing1,133+109
Oct 21, 20261,024+2
Oct 16, 20261,0220
Oct 15, 20261,0220
Oct 14, 20261,0220
Oct 13, 20261,0220
Oct 09, 20261,0220
Oct 08, 20261,022+1
Oct 07, 20261,021-1
Oct 06, 20261,0220
Oct 05, 20261,022-1
Oct 02, 20261,023No prior observation