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Contract OI history

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Dec 18, 2026 EXPIRATION

RCUS $17.50 Put

RCUS261218P00017500

Latest saved OI204Oct 20, 2026
Last change+200vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RCUS $17.50 put open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 2041020 2026-10-02: 4 OI2026-10-05: 4 OI2026-10-06: 4 OI2026-10-07: 4 OI2026-10-08: 4 OI2026-10-09: 4 OI2026-10-13: 4 OI2026-10-14: 4 OI2026-10-16: 4 OI2026-10-20: 204 OI Oct 02, 2026Oct 20, 2026

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

RCUS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing204+200
Oct 16, 202640
Oct 14, 202640
Oct 13, 202640
Oct 09, 202640
Oct 08, 202640
Oct 07, 202640
Oct 06, 202640
Oct 05, 202640
Oct 02, 20264No prior observation