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Contract OI history

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Mar 19, 2027 EXPIRATION

CI $300.00 Put

CI270319P00300000

Latest saved OI118Oct 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 $300.00 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: 20 OI2026-10-05: 20 OI2026-10-06: 20 OI2026-10-07: 20 OI2026-10-08: 92 OI2026-10-09: 92 OI2026-10-13: 92 OI2026-10-14: 92 OI2026-10-15: 92 OI2026-10-16: 92 OI2026-10-21: 117 OI2026-10-23: 118 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, 2026Viewing118+1
Oct 21, 2026117+25
Oct 16, 2026920
Oct 15, 2026920
Oct 14, 2026920
Oct 13, 2026920
Oct 09, 2026920
Oct 08, 202692+72
Oct 07, 2026200
Oct 06, 2026200
Oct 05, 2026200
Oct 02, 202620No prior observation