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Contract OI history

Back to BRK.B

Oct 23, 2026 EXPIRATION

BRK.B $455.00 Put

BRKB261023P00455000

Latest saved OI576Oct 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 $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. 5762880 2026-10-02: 79 OI2026-10-05: 79 OI2026-10-06: 83 OI2026-10-07: 83 OI2026-10-08: 83 OI2026-10-09: 76 OI2026-10-13: 576 OI2026-10-14: 576 OI2026-10-15: 576 OI2026-10-16: 576 OI2026-10-21: 576 OI2026-10-23: 576 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, 2026Viewing5760
Oct 21, 20265760
Oct 16, 20265760
Oct 15, 20265760
Oct 14, 20265760
Oct 13, 2026576+500
Oct 09, 202676-7
Oct 08, 2026830
Oct 07, 2026830
Oct 06, 202683+4
Oct 05, 2026790
Oct 02, 202679No prior observation