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Contract OI history

Back to BRK.B

Dec 15, 2028 EXPIRATION

BRK.B $490.00 Put

BRKB281215P00490000

Latest saved OI241Oct 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. 2411200 2026-10-02: 223 OI2026-10-05: 223 OI2026-10-06: 223 OI2026-10-07: 228 OI2026-10-08: 228 OI2026-10-09: 241 OI2026-10-13: 240 OI2026-10-14: 240 OI2026-10-15: 240 OI2026-10-16: 240 OI2026-10-21: 241 OI2026-10-23: 241 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, 2026Viewing2410
Oct 21, 2026241+1
Oct 16, 20262400
Oct 15, 20262400
Oct 14, 20262400
Oct 13, 2026240-1
Oct 09, 2026241+13
Oct 08, 20262280
Oct 07, 2026228+5
Oct 06, 20262230
Oct 05, 20262230
Oct 02, 2026223No prior observation