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Contract OI history

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Mar 19, 2027 EXPIRATION

RIO $70.00 Put

RIO270319P00070000

Latest saved OI248Oct 23, 2026
Last change+12vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RIO $70.00 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. 2481240 2026-10-02: 230 OI2026-10-05: 230 OI2026-10-06: 230 OI2026-10-07: 230 OI2026-10-08: 230 OI2026-10-09: 230 OI2026-10-13: 233 OI2026-10-14: 233 OI2026-10-15: 233 OI2026-10-16: 234 OI2026-10-20: 236 OI2026-10-23: 248 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, 2026248+12
Oct 20, 2026Viewing236+2
Oct 16, 2026234+1
Oct 15, 20262330
Oct 14, 20262330
Oct 13, 2026233+3
Oct 09, 20262300
Oct 08, 20262300
Oct 07, 20262300
Oct 06, 20262300
Oct 05, 20262300
Oct 02, 2026230No prior observation