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Contract OI history

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Sep 17, 2027 EXPIRATION

BLDR $50.00 Put

BLDR270917P00050000

Latest saved OI601Oct 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 $50.00 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. 6013000 2026-10-02: 599 OI2026-10-05: 599 OI2026-10-06: 599 OI2026-10-07: 599 OI2026-10-08: 599 OI2026-10-09: 601 OI2026-10-13: 601 OI2026-10-14: 601 OI2026-10-15: 601 OI2026-10-16: 601 OI2026-10-21: 601 OI2026-10-23: 601 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, 2026Viewing6010
Oct 21, 20266010
Oct 16, 20266010
Oct 15, 20266010
Oct 14, 20266010
Oct 13, 20266010
Oct 09, 2026601+2
Oct 08, 20265990
Oct 07, 20265990
Oct 06, 20265990
Oct 05, 20265990
Oct 02, 2026599No prior observation