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Contract OI history

Back to BRK.B

Jun 17, 2027 EXPIRATION

BRK.B $500.00 Put

BRKB270617P00500000

Latest saved OI630Oct 23, 2026
Last change+15vs 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. 6303150 2026-10-02: 577 OI2026-10-05: 587 OI2026-10-06: 598 OI2026-10-07: 598 OI2026-10-08: 598 OI2026-10-09: 597 OI2026-10-13: 594 OI2026-10-14: 594 OI2026-10-15: 595 OI2026-10-16: 607 OI2026-10-21: 615 OI2026-10-23: 630 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, 2026Viewing630+15
Oct 21, 2026615+8
Oct 16, 2026607+12
Oct 15, 2026595+1
Oct 14, 20265940
Oct 13, 2026594-3
Oct 09, 2026597-1
Oct 08, 20265980
Oct 07, 20265980
Oct 06, 2026598+11
Oct 05, 2026587+10
Oct 02, 2026577No prior observation