OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Oct 30, 2026 EXPIRATION

BRK.B $510.00 Put

BRKB261030P00510000

Latest saved OI147Oct 23, 2026
Last change+4vs 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. 150750 2026-10-02: 41 OI2026-10-05: 42 OI2026-10-06: 44 OI2026-10-07: 45 OI2026-10-08: 45 OI2026-10-09: 70 OI2026-10-13: 96 OI2026-10-14: 96 OI2026-10-15: 141 OI2026-10-16: 150 OI2026-10-21: 143 OI2026-10-23: 147 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, 2026Viewing147+4
Oct 21, 2026143-7
Oct 16, 2026150+9
Oct 15, 2026141+45
Oct 14, 2026960
Oct 13, 202696+26
Oct 09, 202670+25
Oct 08, 2026450
Oct 07, 202645+1
Oct 06, 202644+2
Oct 05, 202642+1
Oct 02, 202641No prior observation