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Contract OI history

Back to BRK.B

Oct 30, 2026 EXPIRATION

BRK.B $480.00 Put

BRKB261030P00480000

Latest saved OI206Oct 23, 2026
Last change-4vs 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. 2231110 2026-10-02: 205 OI2026-10-05: 205 OI2026-10-06: 212 OI2026-10-07: 218 OI2026-10-08: 218 OI2026-10-09: 219 OI2026-10-13: 223 OI2026-10-14: 223 OI2026-10-15: 220 OI2026-10-16: 207 OI2026-10-21: 210 OI2026-10-23: 206 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, 2026Viewing206-4
Oct 21, 2026210+3
Oct 16, 2026207-13
Oct 15, 2026220-3
Oct 14, 20262230
Oct 13, 2026223+4
Oct 09, 2026219+1
Oct 08, 20262180
Oct 07, 2026218+6
Oct 06, 2026212+7
Oct 05, 20262050
Oct 02, 2026205No prior observation