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Contract OI history

Back to BRK.B

Nov 13, 2026 EXPIRATION

BRK.B $490.00 Put

BRKB261113P00490000

Latest saved OI88Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $490.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 90450 2026-10-02: 1 OI2026-10-05: 2 OI2026-10-06: 17 OI2026-10-07: 19 OI2026-10-08: 19 OI2026-10-09: 21 OI2026-10-13: 55 OI2026-10-14: 55 OI2026-10-15: 88 OI2026-10-16: 90 OI2026-10-21: 88 OI2026-10-23: 88 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, 2026Viewing880
Oct 21, 202688-2
Oct 16, 202690+2
Oct 15, 202688+33
Oct 14, 2026550
Oct 13, 202655+34
Oct 09, 202621+2
Oct 08, 2026190
Oct 07, 202619+2
Oct 06, 202617+15
Oct 05, 20262+1
Oct 02, 20261No prior observation