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Contract OI history

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Jan 15, 2027 EXPIRATION

RIO $75.00 Put

RIO270115P00075000

Latest saved OI778Oct 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 $75.00 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. 7783890 2026-10-02: 728 OI2026-10-05: 734 OI2026-10-06: 734 OI2026-10-07: 734 OI2026-10-08: 734 OI2026-10-09: 758 OI2026-10-13: 758 OI2026-10-14: 758 OI2026-10-15: 758 OI2026-10-16: 761 OI2026-10-20: 778 OI2026-10-23: 778 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, 20267780
Oct 20, 2026Viewing778+17
Oct 16, 2026761+3
Oct 15, 20267580
Oct 14, 20267580
Oct 13, 20267580
Oct 09, 2026758+24
Oct 08, 20267340
Oct 07, 20267340
Oct 06, 20267340
Oct 05, 2026734+6
Oct 02, 2026728No prior observation