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Contract OI history

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Nov 20, 2026 EXPIRATION

BLDR $55.00 Put

BLDR261120P00055000

Latest saved OI714Oct 23, 2026
Last change-23vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLDR $55.00 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. 7373680 2026-10-02: 263 OI2026-10-05: 276 OI2026-10-06: 276 OI2026-10-07: 291 OI2026-10-08: 292 OI2026-10-09: 292 OI2026-10-13: 297 OI2026-10-14: 302 OI2026-10-15: 304 OI2026-10-16: 304 OI2026-10-21: 737 OI2026-10-23: 714 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, 2026Viewing714-23
Oct 21, 2026737+433
Oct 16, 20263040
Oct 15, 2026304+2
Oct 14, 2026302+5
Oct 13, 2026297+5
Oct 09, 20262920
Oct 08, 2026292+1
Oct 07, 2026291+15
Oct 06, 20262760
Oct 05, 2026276+13
Oct 02, 2026263No prior observation