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Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $415.00 Put

BRKB261218P00415000

Latest saved OI263Oct 23, 2026
Last change-12vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $415.00 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. 8534260 2026-10-02: 853 OI2026-10-05: 853 OI2026-10-06: 264 OI2026-10-07: 264 OI2026-10-08: 264 OI2026-10-09: 271 OI2026-10-13: 270 OI2026-10-14: 270 OI2026-10-15: 279 OI2026-10-16: 275 OI2026-10-21: 275 OI2026-10-23: 263 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, 2026Viewing263-12
Oct 21, 20262750
Oct 16, 2026275-4
Oct 15, 2026279+9
Oct 14, 20262700
Oct 13, 2026270-1
Oct 09, 2026271+7
Oct 08, 20262640
Oct 07, 20262640
Oct 06, 2026264-589
Oct 05, 20268530
Oct 02, 2026853No prior observation