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Contract OI history

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Nov 20, 2026 EXPIRATION

BETR $17.50 Call

BETR261120C00017500

Latest saved OI602Oct 23, 2026
Last change+581vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BETR $17.50 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 6023010 2026-10-08: 10 OI2026-10-09: 10 OI2026-10-13: 10 OI2026-10-14: 10 OI2026-10-16: 10 OI2026-10-21: 21 OI2026-10-23: 602 OI Oct 08, 2026Oct 23, 2026

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

BETR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing602+581
Oct 21, 202621+11
Oct 16, 2026100
Oct 14, 2026100
Oct 13, 2026100
Oct 09, 2026100
Oct 08, 202610No prior observation