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Contract OI history

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Mar 19, 2027 EXPIRATION

RIO $75.00 Put

RIO270319P00075000

Latest saved OI101Oct 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 $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. 101500 2026-10-02: 87 OI2026-10-05: 87 OI2026-10-06: 87 OI2026-10-07: 87 OI2026-10-08: 87 OI2026-10-09: 87 OI2026-10-13: 88 OI2026-10-14: 88 OI2026-10-15: 88 OI2026-10-16: 89 OI2026-10-20: 100 OI2026-10-23: 101 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, 2026101+1
Oct 20, 2026Viewing100+11
Oct 16, 202689+1
Oct 15, 2026880
Oct 14, 2026880
Oct 13, 202688+1
Oct 09, 2026870
Oct 08, 2026870
Oct 07, 2026870
Oct 06, 2026870
Oct 05, 2026870
Oct 02, 202687No prior observation