OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $430.00 Call

BRKB261218C00430000

Latest saved OI232Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $430.00 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. 2351170 2026-10-02: 232 OI2026-10-05: 232 OI2026-10-06: 234 OI2026-10-07: 234 OI2026-10-08: 234 OI2026-10-09: 235 OI2026-10-13: 235 OI2026-10-14: 235 OI2026-10-15: 235 OI2026-10-16: 233 OI2026-10-21: 233 OI2026-10-23: 232 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, 2026Viewing232-1
Oct 21, 20262330
Oct 16, 2026233-2
Oct 15, 20262350
Oct 14, 20262350
Oct 13, 20262350
Oct 09, 2026235+1
Oct 08, 20262340
Oct 07, 20262340
Oct 06, 2026234+2
Oct 05, 20262320
Oct 02, 2026232No prior observation