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Contract OI history

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Jan 15, 2027 EXPIRATION

RIO $80.00 Put

RIO270115P00080000

Latest saved OI921Oct 23, 2026
Last change+19vs 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. 9214600 2026-10-02: 847 OI2026-10-05: 847 OI2026-10-06: 847 OI2026-10-07: 847 OI2026-10-08: 847 OI2026-10-09: 847 OI2026-10-13: 846 OI2026-10-14: 846 OI2026-10-15: 846 OI2026-10-16: 846 OI2026-10-20: 902 OI2026-10-23: 921 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, 2026Viewing921+19
Oct 20, 2026902+56
Oct 16, 20268460
Oct 15, 20268460
Oct 14, 20268460
Oct 13, 2026846-1
Oct 09, 20268470
Oct 08, 20268470
Oct 07, 20268470
Oct 06, 20268470
Oct 05, 20268470
Oct 02, 2026847No prior observation