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Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $495.00 Put

BRKB270319P00495000

Latest saved OI291Oct 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 $495.00 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. 3041520 2026-10-02: 263 OI2026-10-05: 271 OI2026-10-06: 277 OI2026-10-07: 277 OI2026-10-08: 277 OI2026-10-09: 282 OI2026-10-13: 299 OI2026-10-14: 299 OI2026-10-15: 304 OI2026-10-16: 302 OI2026-10-21: 295 OI2026-10-23: 291 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, 2026Viewing291-4
Oct 21, 2026295-7
Oct 16, 2026302-2
Oct 15, 2026304+5
Oct 14, 20262990
Oct 13, 2026299+17
Oct 09, 2026282+5
Oct 08, 20262770
Oct 07, 20262770
Oct 06, 2026277+6
Oct 05, 2026271+8
Oct 02, 2026263No prior observation