OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $740.00 Call

BRKB261218C00740000

Latest saved OI1,071Oct 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 $740.00 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. 1,0715350 2026-10-02: 1,025 OI2026-10-05: 1,025 OI2026-10-06: 1,025 OI2026-10-07: 1,030 OI2026-10-08: 1,030 OI2026-10-09: 1,029 OI2026-10-13: 1,069 OI2026-10-14: 1,069 OI2026-10-15: 1,069 OI2026-10-16: 1,070 OI2026-10-21: 1,070 OI2026-10-23: 1,071 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, 2026Viewing1,071+1
Oct 21, 20261,0700
Oct 16, 20261,070+1
Oct 15, 20261,0690
Oct 14, 20261,0690
Oct 13, 20261,069+40
Oct 09, 20261,029-1
Oct 08, 20261,0300
Oct 07, 20261,030+5
Oct 06, 20261,0250
Oct 05, 20261,0250
Oct 02, 20261,025No prior observation