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Contract OI history

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Oct 30, 2026 EXPIRATION

CI $307.50 Call

CI261030C00307500

Latest saved OI307Oct 23, 2026
Last change+4vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
CI $307.50 call open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 3071530 2026-10-15: 0 OI2026-10-16: 3 OI2026-10-21: 303 OI2026-10-23: 307 OI Oct 15, 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, 2026Viewing307+4
Oct 21, 2026303+300
Oct 16, 20263+3
Oct 15, 20260No prior observation