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Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $455.00 Put

BRKB261218P00455000

Latest saved OI942Oct 23, 2026
Last change+8vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $455.00 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. 1,0045020 2026-10-02: 877 OI2026-10-05: 880 OI2026-10-06: 1,004 OI2026-10-07: 1,004 OI2026-10-08: 1,004 OI2026-10-09: 992 OI2026-10-13: 982 OI2026-10-14: 982 OI2026-10-15: 963 OI2026-10-16: 949 OI2026-10-21: 934 OI2026-10-23: 942 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, 2026Viewing942+8
Oct 21, 2026934-15
Oct 16, 2026949-14
Oct 15, 2026963-19
Oct 14, 20269820
Oct 13, 2026982-10
Oct 09, 2026992-12
Oct 08, 20261,0040
Oct 07, 20261,0040
Oct 06, 20261,004+124
Oct 05, 2026880+3
Oct 02, 2026877No prior observation