OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $500.00 Put

BRKB270319P00500000

Latest saved OI986Oct 23, 2026
Last change+123vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $500.00 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. 9864930 2026-10-02: 599 OI2026-10-05: 600 OI2026-10-06: 614 OI2026-10-07: 621 OI2026-10-08: 621 OI2026-10-09: 656 OI2026-10-13: 712 OI2026-10-14: 712 OI2026-10-15: 732 OI2026-10-16: 735 OI2026-10-21: 863 OI2026-10-23: 986 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, 2026Viewing986+123
Oct 21, 2026863+128
Oct 16, 2026735+3
Oct 15, 2026732+20
Oct 14, 20267120
Oct 13, 2026712+56
Oct 09, 2026656+35
Oct 08, 20266210
Oct 07, 2026621+7
Oct 06, 2026614+14
Oct 05, 2026600+1
Oct 02, 2026599No prior observation