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Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $510.00 Put

BRKB261120P00510000

Latest saved OI892Oct 23, 2026
Last change-22vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $510.00 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. 9144570 2026-10-02: 417 OI2026-10-05: 416 OI2026-10-06: 424 OI2026-10-07: 422 OI2026-10-08: 422 OI2026-10-09: 454 OI2026-10-13: 581 OI2026-10-14: 581 OI2026-10-15: 558 OI2026-10-16: 572 OI2026-10-21: 914 OI2026-10-23: 892 OI Oct 02, 2026Oct 23, 2026

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

BRK.B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing892-22
Oct 21, 2026914+342
Oct 16, 2026572+14
Oct 15, 2026558-23
Oct 14, 20265810
Oct 13, 2026581+127
Oct 09, 2026454+32
Oct 08, 20264220
Oct 07, 2026422-2
Oct 06, 2026424+8
Oct 05, 2026416-1
Oct 02, 2026417No prior observation