OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Oct 23, 2026 EXPIRATION

BRK.B $550.00 Call

BRKB261023C00550000

Latest saved OI917Oct 23, 2026
Last change-31vs 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. 9484740 2026-10-02: 11 OI2026-10-05: 12 OI2026-10-06: 12 OI2026-10-07: 12 OI2026-10-08: 12 OI2026-10-09: 10 OI2026-10-13: 10 OI2026-10-14: 10 OI2026-10-15: 265 OI2026-10-16: 265 OI2026-10-21: 948 OI2026-10-23: 917 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, 2026Viewing917-31
Oct 21, 2026948+683
Oct 16, 20262650
Oct 15, 2026265+255
Oct 14, 2026100
Oct 13, 2026100
Oct 09, 202610-2
Oct 08, 2026120
Oct 07, 2026120
Oct 06, 2026120
Oct 05, 202612+1
Oct 02, 202611No prior observation