OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $550.00 Put

BRKB270115P00550000

Latest saved OI309Oct 23, 2026
Last change+204vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $550.00 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. 3091540 2026-10-02: 79 OI2026-10-05: 81 OI2026-10-06: 81 OI2026-10-07: 81 OI2026-10-08: 81 OI2026-10-09: 82 OI2026-10-13: 83 OI2026-10-14: 83 OI2026-10-15: 103 OI2026-10-16: 103 OI2026-10-21: 105 OI2026-10-23: 309 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, 2026Viewing309+204
Oct 21, 2026105+2
Oct 16, 20261030
Oct 15, 2026103+20
Oct 14, 2026830
Oct 13, 202683+1
Oct 09, 202682+1
Oct 08, 2026810
Oct 07, 2026810
Oct 06, 2026810
Oct 05, 202681+2
Oct 02, 202679No prior observation