OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $430.00 Put

BRKB270115P00430000

Latest saved OI2,839Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $430.00 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. 2,8451,4220 2026-10-02: 2,825 OI2026-10-05: 2,825 OI2026-10-06: 2,826 OI2026-10-07: 2,826 OI2026-10-08: 2,826 OI2026-10-09: 2,831 OI2026-10-13: 2,845 OI2026-10-14: 2,845 OI2026-10-15: 2,843 OI2026-10-16: 2,839 OI2026-10-21: 2,839 OI2026-10-23: 2,839 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, 2026Viewing2,8390
Oct 21, 20262,8390
Oct 16, 20262,839-4
Oct 15, 20262,843-2
Oct 14, 20262,8450
Oct 13, 20262,845+14
Oct 09, 20262,831+5
Oct 08, 20262,8260
Oct 07, 20262,8260
Oct 06, 20262,826+1
Oct 05, 20262,8250
Oct 02, 20262,825No prior observation