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Contract OI history

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Dec 18, 2026 EXPIRATION

RIO $80.00 Call

RIO261218C00080000

Latest saved OI163Oct 23, 2026
Last change+31vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RIO $80.00 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. 163810 2026-10-02: 132 OI2026-10-05: 132 OI2026-10-06: 132 OI2026-10-07: 132 OI2026-10-08: 132 OI2026-10-09: 132 OI2026-10-13: 132 OI2026-10-14: 132 OI2026-10-15: 132 OI2026-10-16: 132 OI2026-10-20: 132 OI2026-10-23: 163 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, 2026163+31
Oct 20, 2026Viewing1320
Oct 16, 20261320
Oct 15, 20261320
Oct 14, 20261320
Oct 13, 20261320
Oct 09, 20261320
Oct 08, 20261320
Oct 07, 20261320
Oct 06, 20261320
Oct 05, 20261320
Oct 02, 2026132No prior observation