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Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $570.00 Call

BRKB261120C00570000

Latest saved OI328Oct 23, 2026
Last change+41vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $570.00 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. 3281640 2026-10-02: 134 OI2026-10-05: 133 OI2026-10-06: 122 OI2026-10-07: 120 OI2026-10-08: 120 OI2026-10-09: 249 OI2026-10-13: 246 OI2026-10-14: 246 OI2026-10-15: 251 OI2026-10-16: 242 OI2026-10-21: 287 OI2026-10-23: 328 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, 2026Viewing328+41
Oct 21, 2026287+45
Oct 16, 2026242-9
Oct 15, 2026251+5
Oct 14, 20262460
Oct 13, 2026246-3
Oct 09, 2026249+129
Oct 08, 20261200
Oct 07, 2026120-2
Oct 06, 2026122-11
Oct 05, 2026133-1
Oct 02, 2026134No prior observation