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Contract OI history

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Dec 18, 2026 EXPIRATION

ALHC $17.50 Call

ALHC261218C00017500

Latest saved OI109Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALHC $17.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 110550 2026-10-09: 110 OI2026-10-13: 110 OI2026-10-14: 110 OI2026-10-15: 110 OI2026-10-16: 110 OI2026-10-21: 110 OI2026-10-23: 109 OI Oct 09, 2026Oct 23, 2026

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

ALHC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing109-1
Oct 21, 20261100
Oct 16, 20261100
Oct 15, 20261100
Oct 14, 20261100
Oct 13, 20261100
Oct 09, 2026110No prior observation