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Contract OI history

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Feb 19, 2027 EXPIRATION

RTO $22.50 Put

RTO270219P00022500

Latest saved OI17Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RTO $22.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1780 2026-10-02: 17 OI2026-10-05: 17 OI2026-10-06: 17 OI2026-10-07: 17 OI2026-10-08: 17 OI2026-10-09: 17 OI2026-10-13: 17 OI2026-10-14: 17 OI2026-10-16: 17 OI2026-10-20: 17 OI2026-10-23: 17 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

RTO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing170
Oct 20, 2026170
Oct 16, 2026170
Oct 14, 2026170
Oct 13, 2026170
Oct 09, 2026170
Oct 08, 2026170
Oct 07, 2026170
Oct 06, 2026170
Oct 05, 2026170
Oct 02, 202617No prior observation