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Contract OI history

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Dec 18, 2026 EXPIRATION

BETR $17.50 Call

BETR261218C00017500

Latest saved OI246Oct 23, 2026
Last change-25vs 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. 2711350 2026-10-08: 250 OI2026-10-09: 250 OI2026-10-13: 249 OI2026-10-14: 249 OI2026-10-16: 249 OI2026-10-21: 271 OI2026-10-23: 246 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, 2026Viewing246-25
Oct 21, 2026271+22
Oct 16, 20262490
Oct 14, 20262490
Oct 13, 2026249-1
Oct 09, 20262500
Oct 08, 2026250No prior observation