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Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $525.00 Call

BRKB261120C00525000

Latest saved OI643Oct 23, 2026
Last change-6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $525.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6493240 2026-10-02: 342 OI2026-10-05: 376 OI2026-10-06: 495 OI2026-10-07: 512 OI2026-10-08: 512 OI2026-10-09: 582 OI2026-10-13: 557 OI2026-10-14: 557 OI2026-10-15: 595 OI2026-10-16: 589 OI2026-10-21: 649 OI2026-10-23: 643 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, 2026Viewing643-6
Oct 21, 2026649+60
Oct 16, 2026589-6
Oct 15, 2026595+38
Oct 14, 20265570
Oct 13, 2026557-25
Oct 09, 2026582+70
Oct 08, 20265120
Oct 07, 2026512+17
Oct 06, 2026495+119
Oct 05, 2026376+34
Oct 02, 2026342No prior observation