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Contract OI history

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Jan 15, 2027 EXPIRATION

RIO $85.00 Put

RIO270115P00085000

Latest saved OI1,575Oct 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 $85.00 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. 1,5757870 2026-10-02: 1,518 OI2026-10-05: 1,518 OI2026-10-06: 1,518 OI2026-10-07: 1,538 OI2026-10-08: 1,538 OI2026-10-09: 1,538 OI2026-10-13: 1,567 OI2026-10-14: 1,567 OI2026-10-15: 1,567 OI2026-10-16: 1,572 OI2026-10-20: 1,575 OI2026-10-23: 1,575 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, 20261,5750
Oct 20, 2026Viewing1,575+3
Oct 16, 20261,572+5
Oct 15, 20261,5670
Oct 14, 20261,5670
Oct 13, 20261,567+29
Oct 09, 20261,5380
Oct 08, 20261,5380
Oct 07, 20261,538+20
Oct 06, 20261,5180
Oct 05, 20261,5180
Oct 02, 20261,518No prior observation