OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 15, 2028 EXPIRATION

BRK.B $740.00 Call

BRKB281215C00740000

Latest saved OI1,505Oct 23, 2026
Last change+5vs 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. 1,5057520 2026-10-02: 1,491 OI2026-10-05: 1,491 OI2026-10-06: 1,491 OI2026-10-07: 1,491 OI2026-10-08: 1,491 OI2026-10-09: 1,492 OI2026-10-13: 1,492 OI2026-10-14: 1,492 OI2026-10-15: 1,496 OI2026-10-16: 1,496 OI2026-10-21: 1,500 OI2026-10-23: 1,505 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, 2026Viewing1,505+5
Oct 21, 20261,500+4
Oct 16, 20261,4960
Oct 15, 20261,496+4
Oct 14, 20261,4920
Oct 13, 20261,4920
Oct 09, 20261,492+1
Oct 08, 20261,4910
Oct 07, 20261,4910
Oct 06, 20261,4910
Oct 05, 20261,4910
Oct 02, 20261,491No prior observation