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Contract OI history

Back to BRK.B

Oct 23, 2026 EXPIRATION

BRK.B $480.00 Put

BRKB261023P00480000

Latest saved OI294Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $480.00 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. 3001500 2026-10-02: 284 OI2026-10-05: 287 OI2026-10-06: 299 OI2026-10-07: 300 OI2026-10-08: 300 OI2026-10-09: 295 OI2026-10-13: 295 OI2026-10-14: 295 OI2026-10-15: 294 OI2026-10-16: 294 OI2026-10-21: 295 OI2026-10-23: 294 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, 2026Viewing294-1
Oct 21, 2026295+1
Oct 16, 20262940
Oct 15, 2026294-1
Oct 14, 20262950
Oct 13, 20262950
Oct 09, 2026295-5
Oct 08, 20263000
Oct 07, 2026300+1
Oct 06, 2026299+12
Oct 05, 2026287+3
Oct 02, 2026284No prior observation