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Contract OI history

Back to BRK.B

Jun 17, 2027 EXPIRATION

BRK.B $530.00 Put

BRKB270617P00530000

Latest saved OI659Oct 23, 2026
Last change+20vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $530.00 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. 6593290 2026-10-02: 620 OI2026-10-05: 620 OI2026-10-06: 620 OI2026-10-07: 623 OI2026-10-08: 623 OI2026-10-09: 623 OI2026-10-13: 629 OI2026-10-14: 629 OI2026-10-15: 629 OI2026-10-16: 636 OI2026-10-21: 639 OI2026-10-23: 659 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, 2026Viewing659+20
Oct 21, 2026639+3
Oct 16, 2026636+7
Oct 15, 20266290
Oct 14, 20266290
Oct 13, 2026629+6
Oct 09, 20266230
Oct 08, 20266230
Oct 07, 2026623+3
Oct 06, 20266200
Oct 05, 20266200
Oct 02, 2026620No prior observation