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Contract OI history

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Dec 18, 2026 EXPIRATION

RIO $90.00 Call

RIO261218C00090000

Latest saved OI276Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RIO $90.00 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. 2761380 2026-10-02: 219 OI2026-10-05: 219 OI2026-10-06: 219 OI2026-10-07: 219 OI2026-10-08: 219 OI2026-10-09: 219 OI2026-10-13: 240 OI2026-10-14: 240 OI2026-10-15: 241 OI2026-10-16: 248 OI2026-10-20: 276 OI2026-10-23: 276 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, 20262760
Oct 20, 2026Viewing276+28
Oct 16, 2026248+7
Oct 15, 2026241+1
Oct 14, 20262400
Oct 13, 2026240+21
Oct 09, 20262190
Oct 08, 20262190
Oct 07, 20262190
Oct 06, 20262190
Oct 05, 20262190
Oct 02, 2026219No prior observation