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Contract OI history

Back to BRK.B

Oct 23, 2026 EXPIRATION

BRK.B $540.00 Call

BRKB261023C00540000

Latest saved OI2,943Oct 23, 2026
Last change-20vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $540.00 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. 2,9631,4810 2026-10-02: 129 OI2026-10-05: 129 OI2026-10-06: 138 OI2026-10-07: 138 OI2026-10-08: 138 OI2026-10-09: 143 OI2026-10-13: 173 OI2026-10-14: 173 OI2026-10-15: 210 OI2026-10-16: 268 OI2026-10-21: 2,963 OI2026-10-23: 2,943 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, 2026Viewing2,943-20
Oct 21, 20262,963+2,695
Oct 16, 2026268+58
Oct 15, 2026210+37
Oct 14, 20261730
Oct 13, 2026173+30
Oct 09, 2026143+5
Oct 08, 20261380
Oct 07, 20261380
Oct 06, 2026138+9
Oct 05, 20261290
Oct 02, 2026129No prior observation