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Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $505.00 Call

BRKB261218C00505000

Latest saved OI524Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $505.00 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. 5552770 2026-10-02: 517 OI2026-10-05: 510 OI2026-10-06: 532 OI2026-10-07: 525 OI2026-10-08: 525 OI2026-10-09: 513 OI2026-10-13: 555 OI2026-10-14: 555 OI2026-10-15: 540 OI2026-10-16: 540 OI2026-10-21: 527 OI2026-10-23: 524 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, 2026Viewing524-3
Oct 21, 2026527-13
Oct 16, 20265400
Oct 15, 2026540-15
Oct 14, 20265550
Oct 13, 2026555+42
Oct 09, 2026513-12
Oct 08, 20265250
Oct 07, 2026525-7
Oct 06, 2026532+22
Oct 05, 2026510-7
Oct 02, 2026517No prior observation