OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $510.00 Call

BRKB261218C00510000

Latest saved OI2,008Oct 23, 2026
Last change-138vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $510.00 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. 2,3801,1900 2026-10-02: 2,273 OI2026-10-05: 2,276 OI2026-10-06: 2,293 OI2026-10-07: 2,304 OI2026-10-08: 2,304 OI2026-10-09: 2,380 OI2026-10-13: 2,379 OI2026-10-14: 2,379 OI2026-10-15: 2,352 OI2026-10-16: 2,329 OI2026-10-21: 2,146 OI2026-10-23: 2,008 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, 2026Viewing2,008-138
Oct 21, 20262,146-183
Oct 16, 20262,329-23
Oct 15, 20262,352-27
Oct 14, 20262,3790
Oct 13, 20262,379-1
Oct 09, 20262,380+76
Oct 08, 20262,3040
Oct 07, 20262,304+11
Oct 06, 20262,293+17
Oct 05, 20262,276+3
Oct 02, 20262,273No prior observation