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Contract OI history

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Mar 19, 2027 EXPIRATION

RIO $80.00 Put

RIO270319P00080000

Latest saved OI104Oct 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 $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. 104520 2026-10-02: 98 OI2026-10-05: 98 OI2026-10-06: 98 OI2026-10-07: 98 OI2026-10-08: 98 OI2026-10-09: 102 OI2026-10-13: 102 OI2026-10-14: 102 OI2026-10-15: 102 OI2026-10-16: 102 OI2026-10-20: 103 OI2026-10-23: 104 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, 2026104+1
Oct 20, 2026Viewing103+1
Oct 16, 20261020
Oct 15, 20261020
Oct 14, 20261020
Oct 13, 20261020
Oct 09, 2026102+4
Oct 08, 2026980
Oct 07, 2026980
Oct 06, 2026980
Oct 05, 2026980
Oct 02, 202698No prior observation