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Contract OI history

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Nov 20, 2026 EXPIRATION

BATRK $50.00 Put

BATRK261120P00050000

Latest saved OI4,661Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BATRK $50.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 4,6612,3300 2026-10-08: 4,641 OI2026-10-09: 4,640 OI2026-10-13: 4,640 OI2026-10-14: 4,640 OI2026-10-16: 4,640 OI2026-10-20: 4,660 OI2026-10-23: 4,661 OI Oct 08, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BATRK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4,661+1
Oct 20, 20264,660+20
Oct 16, 20264,6400
Oct 14, 20264,6400
Oct 13, 20264,6400
Oct 09, 20264,640-1
Oct 08, 20264,641No prior observation