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Contract OI history

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Dec 18, 2026 EXPIRATION

ALMS $9.00 Put

ALMS261218P00009000

Latest saved OI500Oct 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 $9.00 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. 5002500 2026-10-08: 500 OI2026-10-13: 500 OI2026-10-14: 500 OI2026-10-16: 500 OI2026-10-20: 500 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, 2026Viewing5000
Oct 16, 20265000
Oct 14, 20265000
Oct 13, 20265000
Oct 08, 2026500No prior observation