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Contract OI history

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Jan 15, 2027 EXPIRATION

RIO $55.00 Put

RIO270115P00055000

Latest saved OI1,715Oct 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 $55.00 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. 1,7158570 2026-10-02: 1,715 OI2026-10-05: 1,715 OI2026-10-06: 1,715 OI2026-10-07: 1,715 OI2026-10-08: 1,715 OI2026-10-09: 1,715 OI2026-10-13: 1,715 OI2026-10-14: 1,715 OI2026-10-15: 1,715 OI2026-10-16: 1,715 OI2026-10-20: 1,715 OI2026-10-23: 1,715 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, 2026Viewing1,7150
Oct 20, 20261,7150
Oct 16, 20261,7150
Oct 15, 20261,7150
Oct 14, 20261,7150
Oct 13, 20261,7150
Oct 09, 20261,7150
Oct 08, 20261,7150
Oct 07, 20261,7150
Oct 06, 20261,7150
Oct 05, 20261,7150
Oct 02, 20261,715No prior observation