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Contract OI history

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Jan 19, 2029 EXPIRATION

BLDR $40.00 Put

BLDR290119P00040000

Latest saved OI29Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLDR $40.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 29140 2026-10-02: 6 OI2026-10-05: 6 OI2026-10-06: 6 OI2026-10-07: 7 OI2026-10-08: 7 OI2026-10-09: 7 OI2026-10-13: 17 OI2026-10-14: 17 OI2026-10-15: 23 OI2026-10-16: 23 OI2026-10-21: 29 OI2026-10-23: 29 OI Oct 02, 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, 2026Viewing290
Oct 21, 202629+6
Oct 16, 2026230
Oct 15, 202623+6
Oct 14, 2026170
Oct 13, 202617+10
Oct 09, 202670
Oct 08, 202670
Oct 07, 20267+1
Oct 06, 202660
Oct 05, 202660
Oct 02, 20266No prior observation