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Contract OI history

Back to BRK.B

Jun 17, 2027 EXPIRATION

BRK.B $540.00 Put

BRKB270617P00540000

Latest saved OI120Oct 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 $540.00 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. 120600 2026-10-02: 102 OI2026-10-05: 102 OI2026-10-06: 102 OI2026-10-07: 102 OI2026-10-08: 102 OI2026-10-09: 102 OI2026-10-13: 113 OI2026-10-14: 113 OI2026-10-15: 113 OI2026-10-16: 113 OI2026-10-21: 112 OI2026-10-23: 120 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, 2026Viewing120+8
Oct 21, 2026112-1
Oct 16, 20261130
Oct 15, 20261130
Oct 14, 20261130
Oct 13, 2026113+11
Oct 09, 20261020
Oct 08, 20261020
Oct 07, 20261020
Oct 06, 20261020
Oct 05, 20261020
Oct 02, 2026102No prior observation