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Contract OI history

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Dec 18, 2026 EXPIRATION

ALM $17.50 Call

ALM261218C00017500

Latest saved OI655Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALM $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. 6603300 2026-10-09: 660 OI2026-10-13: 660 OI2026-10-14: 660 OI2026-10-15: 659 OI2026-10-16: 655 OI2026-10-21: 655 OI2026-10-23: 655 OI Oct 09, 2026Oct 23, 2026

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

ALM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6550
Oct 21, 20266550
Oct 16, 2026655-4
Oct 15, 2026659-1
Oct 14, 20266600
Oct 13, 20266600
Oct 09, 2026660No prior observation