OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $390.00 Put

BRKB270115P00390000

Latest saved OI975Oct 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 $390.00 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. 9854920 2026-10-02: 820 OI2026-10-05: 849 OI2026-10-06: 849 OI2026-10-07: 849 OI2026-10-08: 849 OI2026-10-09: 849 OI2026-10-13: 849 OI2026-10-14: 849 OI2026-10-15: 985 OI2026-10-16: 985 OI2026-10-21: 975 OI2026-10-23: 975 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, 2026Viewing9750
Oct 21, 2026975-10
Oct 16, 20269850
Oct 15, 2026985+136
Oct 14, 20268490
Oct 13, 20268490
Oct 09, 20268490
Oct 08, 20268490
Oct 07, 20268490
Oct 06, 20268490
Oct 05, 2026849+29
Oct 02, 2026820No prior observation