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Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $545.00 Call

BRKB270319C00545000

Latest saved OI335Oct 23, 2026
Last change+9vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $545.00 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. 3351670 2026-10-02: 270 OI2026-10-05: 274 OI2026-10-06: 278 OI2026-10-07: 278 OI2026-10-08: 278 OI2026-10-09: 306 OI2026-10-13: 304 OI2026-10-14: 304 OI2026-10-15: 308 OI2026-10-16: 311 OI2026-10-21: 326 OI2026-10-23: 335 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, 2026Viewing335+9
Oct 21, 2026326+15
Oct 16, 2026311+3
Oct 15, 2026308+4
Oct 14, 20263040
Oct 13, 2026304-2
Oct 09, 2026306+28
Oct 08, 20262780
Oct 07, 20262780
Oct 06, 2026278+4
Oct 05, 2026274+4
Oct 02, 2026270No prior observation