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Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $470.00 Put

BRKB261120P00470000

Latest saved OI791Oct 23, 2026
Last change+2vs 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. 9984990 2026-10-02: 901 OI2026-10-05: 923 OI2026-10-06: 979 OI2026-10-07: 998 OI2026-10-08: 998 OI2026-10-09: 991 OI2026-10-13: 956 OI2026-10-14: 956 OI2026-10-15: 953 OI2026-10-16: 940 OI2026-10-21: 789 OI2026-10-23: 791 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, 2026Viewing791+2
Oct 21, 2026789-151
Oct 16, 2026940-13
Oct 15, 2026953-3
Oct 14, 20269560
Oct 13, 2026956-35
Oct 09, 2026991-7
Oct 08, 20269980
Oct 07, 2026998+19
Oct 06, 2026979+56
Oct 05, 2026923+22
Oct 02, 2026901No prior observation