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Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $510.00 Put

BRKB270319P00510000

Latest saved OI666Oct 23, 2026
Last change-14vs 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. 6803400 2026-10-02: 384 OI2026-10-05: 386 OI2026-10-06: 404 OI2026-10-07: 408 OI2026-10-08: 408 OI2026-10-09: 418 OI2026-10-13: 531 OI2026-10-14: 531 OI2026-10-15: 531 OI2026-10-16: 581 OI2026-10-21: 680 OI2026-10-23: 666 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, 2026Viewing666-14
Oct 21, 2026680+99
Oct 16, 2026581+50
Oct 15, 20265310
Oct 14, 20265310
Oct 13, 2026531+113
Oct 09, 2026418+10
Oct 08, 20264080
Oct 07, 2026408+4
Oct 06, 2026404+18
Oct 05, 2026386+2
Oct 02, 2026384No prior observation