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Contract OI history

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Dec 18, 2026 EXPIRATION

RIO $97.50 Call

RIO261218C00097500

Latest saved OI796Oct 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
RIO $97.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8064030 2026-10-02: 734 OI2026-10-05: 790 OI2026-10-06: 790 OI2026-10-07: 790 OI2026-10-08: 790 OI2026-10-09: 790 OI2026-10-13: 806 OI2026-10-14: 806 OI2026-10-15: 806 OI2026-10-16: 806 OI2026-10-20: 795 OI2026-10-23: 796 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

RIO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026796+1
Oct 20, 2026Viewing795-11
Oct 16, 20268060
Oct 15, 20268060
Oct 14, 20268060
Oct 13, 2026806+16
Oct 09, 20267900
Oct 08, 20267900
Oct 07, 20267900
Oct 06, 20267900
Oct 05, 2026790+56
Oct 02, 2026734No prior observation