OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $410.00 Put

BRKB270115P00410000

Latest saved OI939Oct 23, 2026
Last change-10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $410.00 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. 9494740 2026-10-02: 906 OI2026-10-05: 907 OI2026-10-06: 922 OI2026-10-07: 922 OI2026-10-08: 922 OI2026-10-09: 922 OI2026-10-13: 919 OI2026-10-14: 919 OI2026-10-15: 919 OI2026-10-16: 949 OI2026-10-21: 949 OI2026-10-23: 939 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, 2026Viewing939-10
Oct 21, 20269490
Oct 16, 2026949+30
Oct 15, 20269190
Oct 14, 20269190
Oct 13, 2026919-3
Oct 09, 20269220
Oct 08, 20269220
Oct 07, 20269220
Oct 06, 2026922+15
Oct 05, 2026907+1
Oct 02, 2026906No prior observation