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Contract OI history

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Mar 19, 2027 EXPIRATION

ALDX $2.00 Call

ALDX270319C00002000

Latest saved OI272Oct 21, 2026
Last change-2vs 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. 2741370 2026-10-09: 265 OI2026-10-13: 265 OI2026-10-14: 265 OI2026-10-16: 274 OI2026-10-21: 272 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, 2026Viewing272-2
Oct 16, 2026274+9
Oct 14, 20262650
Oct 13, 20262650
Oct 09, 2026265No prior observation