OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $510.00 Put

BRKB270115P00510000

Latest saved OI1,814Oct 23, 2026
Last change+587vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $510.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,8149070 2026-10-02: 1,078 OI2026-10-05: 1,089 OI2026-10-06: 1,094 OI2026-10-07: 1,102 OI2026-10-08: 1,102 OI2026-10-09: 1,157 OI2026-10-13: 1,161 OI2026-10-14: 1,161 OI2026-10-15: 1,126 OI2026-10-16: 1,202 OI2026-10-21: 1,227 OI2026-10-23: 1,814 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, 2026Viewing1,814+587
Oct 21, 20261,227+25
Oct 16, 20261,202+76
Oct 15, 20261,126-35
Oct 14, 20261,1610
Oct 13, 20261,161+4
Oct 09, 20261,157+55
Oct 08, 20261,1020
Oct 07, 20261,102+8
Oct 06, 20261,094+5
Oct 05, 20261,089+11
Oct 02, 20261,078No prior observation