OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 21, 2028 EXPIRATION

BRK.B $450.00 Call

BRKB280121C00450000

Latest saved OI1,279Oct 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. 1,2996490 2026-10-02: 1,298 OI2026-10-05: 1,299 OI2026-10-06: 1,296 OI2026-10-07: 1,296 OI2026-10-08: 1,296 OI2026-10-09: 1,289 OI2026-10-13: 1,289 OI2026-10-14: 1,289 OI2026-10-15: 1,288 OI2026-10-16: 1,282 OI2026-10-21: 1,281 OI2026-10-23: 1,279 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, 2026Viewing1,279-2
Oct 21, 20261,281-1
Oct 16, 20261,282-6
Oct 15, 20261,288-1
Oct 14, 20261,2890
Oct 13, 20261,2890
Oct 09, 20261,289-7
Oct 08, 20261,2960
Oct 07, 20261,2960
Oct 06, 20261,296-3
Oct 05, 20261,299+1
Oct 02, 20261,298No prior observation