OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $450.00 Call

BRKB261218C00450000

Latest saved OI441Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $450.00 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. 4502250 2026-10-02: 450 OI2026-10-05: 450 OI2026-10-06: 449 OI2026-10-07: 449 OI2026-10-08: 449 OI2026-10-09: 442 OI2026-10-13: 442 OI2026-10-14: 442 OI2026-10-15: 442 OI2026-10-16: 442 OI2026-10-21: 443 OI2026-10-23: 441 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, 2026Viewing441-2
Oct 21, 2026443+1
Oct 16, 20264420
Oct 15, 20264420
Oct 14, 20264420
Oct 13, 20264420
Oct 09, 2026442-7
Oct 08, 20264490
Oct 07, 20264490
Oct 06, 2026449-1
Oct 05, 20264500
Oct 02, 2026450No prior observation