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Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $575.00 Call

BRKB261120C00575000

Latest saved OI73Oct 23, 2026
Last change+13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $575.00 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. 73360 2026-10-02: 25 OI2026-10-05: 26 OI2026-10-06: 23 OI2026-10-07: 23 OI2026-10-08: 23 OI2026-10-09: 33 OI2026-10-13: 35 OI2026-10-14: 35 OI2026-10-15: 35 OI2026-10-16: 35 OI2026-10-21: 60 OI2026-10-23: 73 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, 2026Viewing73+13
Oct 21, 202660+25
Oct 16, 2026350
Oct 15, 2026350
Oct 14, 2026350
Oct 13, 202635+2
Oct 09, 202633+10
Oct 08, 2026230
Oct 07, 2026230
Oct 06, 202623-3
Oct 05, 202626+1
Oct 02, 202625No prior observation