OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 15, 2028 EXPIRATION

BRK.B $400.00 Call

BRKB281215C00400000

Latest saved OI666Oct 23, 2026
Last change-42vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $400.00 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. 7083540 2026-10-02: 635 OI2026-10-05: 635 OI2026-10-06: 635 OI2026-10-07: 635 OI2026-10-08: 635 OI2026-10-09: 630 OI2026-10-13: 638 OI2026-10-14: 638 OI2026-10-15: 637 OI2026-10-16: 637 OI2026-10-21: 708 OI2026-10-23: 666 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, 2026Viewing666-42
Oct 21, 2026708+71
Oct 16, 20266370
Oct 15, 2026637-1
Oct 14, 20266380
Oct 13, 2026638+8
Oct 09, 2026630-5
Oct 08, 20266350
Oct 07, 20266350
Oct 06, 20266350
Oct 05, 20266350
Oct 02, 2026635No prior observation