OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $550.00 Call

BRKB261218C00550000

Latest saved OI2,349Oct 23, 2026
Last change-49vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $550.00 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. 2,3981,1990 2026-10-02: 2,355 OI2026-10-05: 2,355 OI2026-10-06: 2,354 OI2026-10-07: 2,297 OI2026-10-08: 2,297 OI2026-10-09: 2,241 OI2026-10-13: 2,281 OI2026-10-14: 2,281 OI2026-10-15: 2,322 OI2026-10-16: 2,302 OI2026-10-21: 2,398 OI2026-10-23: 2,349 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, 2026Viewing2,349-49
Oct 21, 20262,398+96
Oct 16, 20262,302-20
Oct 15, 20262,322+41
Oct 14, 20262,2810
Oct 13, 20262,281+40
Oct 09, 20262,241-56
Oct 08, 20262,2970
Oct 07, 20262,297-57
Oct 06, 20262,354-1
Oct 05, 20262,3550
Oct 02, 20262,355No prior observation