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Contract OI history

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Dec 18, 2026 EXPIRATION

CBRS $155.00 Put

CBRS261218P00155000

Latest saved OI229Oct 23, 2026
Last change+12vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
CBRS $155.00 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. 2291140 2026-10-15: 0 OI2026-10-16: 1 OI2026-10-21: 217 OI2026-10-23: 229 OI Oct 15, 2026Oct 23, 2026

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

CBRS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing229+12
Oct 21, 2026217+216
Oct 16, 20261+1
Oct 15, 20260No prior observation