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Contract OI history

Back to BRK.B

Oct 23, 2026 EXPIRATION

BRK.B $515.00 Put

BRKB261023P00515000

Latest saved OI275Oct 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 $515.00 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. 2891440 2026-10-02: 41 OI2026-10-05: 41 OI2026-10-06: 41 OI2026-10-07: 41 OI2026-10-08: 41 OI2026-10-09: 91 OI2026-10-13: 208 OI2026-10-14: 208 OI2026-10-15: 236 OI2026-10-16: 260 OI2026-10-21: 289 OI2026-10-23: 275 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, 2026Viewing275-14
Oct 21, 2026289+29
Oct 16, 2026260+24
Oct 15, 2026236+28
Oct 14, 20262080
Oct 13, 2026208+117
Oct 09, 202691+50
Oct 08, 2026410
Oct 07, 2026410
Oct 06, 2026410
Oct 05, 2026410
Oct 02, 202641No prior observation