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Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $545.00 Call

BRKB261218C00545000

Latest saved OI1,287Oct 23, 2026
Last change-14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $545.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,3016500 2026-10-02: 935 OI2026-10-05: 946 OI2026-10-06: 969 OI2026-10-07: 992 OI2026-10-08: 992 OI2026-10-09: 1,082 OI2026-10-13: 1,185 OI2026-10-14: 1,185 OI2026-10-15: 1,256 OI2026-10-16: 1,259 OI2026-10-21: 1,301 OI2026-10-23: 1,287 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, 2026Viewing1,287-14
Oct 21, 20261,301+42
Oct 16, 20261,259+3
Oct 15, 20261,256+71
Oct 14, 20261,1850
Oct 13, 20261,185+103
Oct 09, 20261,082+90
Oct 08, 20269920
Oct 07, 2026992+23
Oct 06, 2026969+23
Oct 05, 2026946+11
Oct 02, 2026935No prior observation