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Contract OI history

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Dec 18, 2026 EXPIRATION

ALMS $17.00 Put

ALMS261218P00017000

Latest saved OI266Oct 20, 2026
Last change0vs previous saved observation
Saved market days5Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ALMS $17.00 put open interest history 5 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 3101550 2026-10-08: 310 OI2026-10-13: 310 OI2026-10-14: 266 OI2026-10-16: 266 OI2026-10-20: 266 OI Oct 08, 2026Oct 20, 2026

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

ALMS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing2660
Oct 16, 20262660
Oct 14, 2026266-44
Oct 13, 20263100
Oct 08, 2026310No prior observation