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Contract OI history

Back to BRK.B

Nov 06, 2026 EXPIRATION

BRK.B $505.00 Put

BRKB261106P00505000

Latest saved OI195Oct 23, 2026
Last change+153vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $505.00 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. 195970 2026-10-02: 11 OI2026-10-05: 11 OI2026-10-06: 16 OI2026-10-07: 22 OI2026-10-08: 22 OI2026-10-09: 17 OI2026-10-13: 18 OI2026-10-14: 18 OI2026-10-15: 26 OI2026-10-16: 40 OI2026-10-21: 42 OI2026-10-23: 195 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, 2026Viewing195+153
Oct 21, 202642+2
Oct 16, 202640+14
Oct 15, 202626+8
Oct 14, 2026180
Oct 13, 202618+1
Oct 09, 202617-5
Oct 08, 2026220
Oct 07, 202622+6
Oct 06, 202616+5
Oct 05, 2026110
Oct 02, 202611No prior observation