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Contract OI history

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Nov 20, 2026 EXPIRATION

RIO $80.00 Put

RIO261120P00080000

Latest saved OI4,246Oct 23, 2026
Last change+17vs 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. 4,2462,1230 2026-10-02: 66 OI2026-10-05: 388 OI2026-10-06: 388 OI2026-10-07: 630 OI2026-10-08: 745 OI2026-10-09: 745 OI2026-10-13: 895 OI2026-10-14: 895 OI2026-10-15: 1,099 OI2026-10-16: 1,117 OI2026-10-20: 4,229 OI2026-10-23: 4,246 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, 20264,246+17
Oct 20, 2026Viewing4,229+3,112
Oct 16, 20261,117+18
Oct 15, 20261,099+204
Oct 14, 20268950
Oct 13, 2026895+150
Oct 09, 20267450
Oct 08, 2026745+115
Oct 07, 2026630+242
Oct 06, 20263880
Oct 05, 2026388+322
Oct 02, 202666No prior observation