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Contract OI history

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Dec 18, 2026 EXPIRATION

RIO $80.00 Put

RIO261218P00080000

Latest saved OI697Oct 23, 2026
Last change+11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RIO $80.00 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. 6973480 2026-10-02: 371 OI2026-10-05: 371 OI2026-10-06: 371 OI2026-10-07: 371 OI2026-10-08: 371 OI2026-10-09: 371 OI2026-10-13: 396 OI2026-10-14: 396 OI2026-10-15: 600 OI2026-10-16: 618 OI2026-10-20: 686 OI2026-10-23: 697 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, 2026697+11
Oct 20, 2026Viewing686+68
Oct 16, 2026618+18
Oct 15, 2026600+204
Oct 14, 20263960
Oct 13, 2026396+25
Oct 09, 20263710
Oct 08, 20263710
Oct 07, 20263710
Oct 06, 20263710
Oct 05, 20263710
Oct 02, 2026371No prior observation