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Contract OI history

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Dec 18, 2026 EXPIRATION

ALDX $2.00 Call

ALDX261218C00002000

Latest saved OI501Oct 21, 2026
Last change0vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALDX $2.00 call open interest history 5 saved observations from 2026-10-09 to 2026-10-21. Exact values and changes are listed in the table below. 5122560 2026-10-09: 512 OI2026-10-13: 506 OI2026-10-14: 501 OI2026-10-16: 501 OI2026-10-21: 501 OI Oct 09, 2026Oct 21, 2026

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

ALDX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing5010
Oct 16, 20265010
Oct 14, 2026501-5
Oct 13, 2026506-6
Oct 09, 2026512No prior observation