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Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $470.00 Put

BRKB270319P00470000

Latest saved OI583Oct 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 $470.00 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. 5862930 2026-10-02: 492 OI2026-10-05: 503 OI2026-10-06: 507 OI2026-10-07: 509 OI2026-10-08: 509 OI2026-10-09: 563 OI2026-10-13: 577 OI2026-10-14: 577 OI2026-10-15: 586 OI2026-10-16: 581 OI2026-10-21: 583 OI2026-10-23: 583 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, 2026Viewing5830
Oct 21, 2026583+2
Oct 16, 2026581-5
Oct 15, 2026586+9
Oct 14, 20265770
Oct 13, 2026577+14
Oct 09, 2026563+54
Oct 08, 20265090
Oct 07, 2026509+2
Oct 06, 2026507+4
Oct 05, 2026503+11
Oct 02, 2026492No prior observation