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Contract OI history

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Nov 20, 2026 EXPIRATION

BLDR $45.00 Put

BLDR261120P00045000

Latest saved OI1,187Oct 23, 2026
Last change+109vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLDR $45.00 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. 1,1875930 2026-10-02: 208 OI2026-10-05: 218 OI2026-10-06: 218 OI2026-10-07: 233 OI2026-10-08: 240 OI2026-10-09: 247 OI2026-10-13: 309 OI2026-10-14: 313 OI2026-10-15: 337 OI2026-10-16: 355 OI2026-10-21: 1,078 OI2026-10-23: 1,187 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, 2026Viewing1,187+109
Oct 21, 20261,078+723
Oct 16, 2026355+18
Oct 15, 2026337+24
Oct 14, 2026313+4
Oct 13, 2026309+62
Oct 09, 2026247+7
Oct 08, 2026240+7
Oct 07, 2026233+15
Oct 06, 20262180
Oct 05, 2026218+10
Oct 02, 2026208No prior observation