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Contract OI history

Back to BRK.B

Oct 23, 2026 EXPIRATION

BRK.B $500.00 Put

BRKB261023P00500000

Latest saved OI229Oct 23, 2026
Last change+9vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $500.00 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. 2431210 2026-10-02: 214 OI2026-10-05: 224 OI2026-10-06: 227 OI2026-10-07: 223 OI2026-10-08: 223 OI2026-10-09: 217 OI2026-10-13: 243 OI2026-10-14: 243 OI2026-10-15: 237 OI2026-10-16: 233 OI2026-10-21: 220 OI2026-10-23: 229 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, 2026Viewing229+9
Oct 21, 2026220-13
Oct 16, 2026233-4
Oct 15, 2026237-6
Oct 14, 20262430
Oct 13, 2026243+26
Oct 09, 2026217-6
Oct 08, 20262230
Oct 07, 2026223-4
Oct 06, 2026227+3
Oct 05, 2026224+10
Oct 02, 2026214No prior observation