OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $570.00 Call

BRKB270319C00570000

Latest saved OI1,144Oct 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 $570.00 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. 1,1445720 2026-10-02: 975 OI2026-10-05: 977 OI2026-10-06: 982 OI2026-10-07: 1,075 OI2026-10-08: 1,075 OI2026-10-09: 1,075 OI2026-10-13: 1,089 OI2026-10-14: 1,089 OI2026-10-15: 1,106 OI2026-10-16: 1,107 OI2026-10-21: 1,139 OI2026-10-23: 1,144 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, 2026Viewing1,144+5
Oct 21, 20261,139+32
Oct 16, 20261,107+1
Oct 15, 20261,106+17
Oct 14, 20261,0890
Oct 13, 20261,089+14
Oct 09, 20261,0750
Oct 08, 20261,0750
Oct 07, 20261,075+93
Oct 06, 2026982+5
Oct 05, 2026977+2
Oct 02, 2026975No prior observation