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Contract OI history

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Dec 18, 2026 EXPIRATION

RCAT $4.00 Put

RCAT261218P00004000

Latest saved OI272Oct 23, 2026
Last change+68vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
RCAT $4.00 put open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 2721360 2026-10-15: 0 OI2026-10-16: 3 OI2026-10-21: 204 OI2026-10-23: 272 OI Oct 15, 2026Oct 23, 2026

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

RCAT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing272+68
Oct 21, 2026204+201
Oct 16, 20263+3
Oct 15, 20260No prior observation