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Contract OI history

Back to BRK.B

Sep 17, 2027 EXPIRATION

BRK.B $500.00 Put

BRKB270917P00500000

Latest saved OI1,338Oct 23, 2026
Last change+1,074vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $500.00 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. 1,3386690 2026-10-02: 114 OI2026-10-05: 113 OI2026-10-06: 119 OI2026-10-07: 122 OI2026-10-08: 122 OI2026-10-09: 153 OI2026-10-13: 153 OI2026-10-14: 153 OI2026-10-15: 153 OI2026-10-16: 153 OI2026-10-21: 264 OI2026-10-23: 1,338 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, 2026Viewing1,338+1,074
Oct 21, 2026264+111
Oct 16, 20261530
Oct 15, 20261530
Oct 14, 20261530
Oct 13, 20261530
Oct 09, 2026153+31
Oct 08, 20261220
Oct 07, 2026122+3
Oct 06, 2026119+6
Oct 05, 2026113-1
Oct 02, 2026114No prior observation