OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 21, 2028 EXPIRATION

BRK.B $350.00 Call

BRKB280121C00350000

Latest saved OI1,824Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $350.00 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. 1,8259120 2026-10-02: 1,744 OI2026-10-05: 1,778 OI2026-10-06: 1,803 OI2026-10-07: 1,818 OI2026-10-08: 1,818 OI2026-10-09: 1,825 OI2026-10-13: 1,824 OI2026-10-14: 1,824 OI2026-10-15: 1,824 OI2026-10-16: 1,821 OI2026-10-21: 1,821 OI2026-10-23: 1,824 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, 2026Viewing1,824+3
Oct 21, 20261,8210
Oct 16, 20261,821-3
Oct 15, 20261,8240
Oct 14, 20261,8240
Oct 13, 20261,824-1
Oct 09, 20261,825+7
Oct 08, 20261,8180
Oct 07, 20261,818+15
Oct 06, 20261,803+25
Oct 05, 20261,778+34
Oct 02, 20261,744No prior observation