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Contract OI history

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Nov 20, 2026 EXPIRATION

BLDR $47.50 Put

BLDR261120P00047500

Latest saved OI22Oct 23, 2026
Last change+11vs previous saved observation
Saved market days5Oct 14, 2026 onwards
Daily open interest Hover a point for its date and OI
BLDR $47.50 put open interest history 5 saved observations from 2026-10-14 to 2026-10-23. Exact values and changes are listed in the table below. 22110 2026-10-14: 0 OI2026-10-15: 3 OI2026-10-16: 3 OI2026-10-21: 11 OI2026-10-23: 22 OI Oct 14, 2026Oct 23, 2026

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

BLDR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing22+11
Oct 21, 202611+8
Oct 16, 202630
Oct 15, 20263+3
Oct 14, 20260No prior observation