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Contract OI history

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Jan 15, 2027 EXPIRATION

ALTO $4.00 Call

ALTO270115C00004000

Latest saved OI387Oct 20, 2026
Last change0vs previous saved observation
Saved market days5Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ALTO $4.00 call open interest history 5 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 3891940 2026-10-08: 387 OI2026-10-13: 388 OI2026-10-15: 389 OI2026-10-16: 387 OI2026-10-20: 387 OI Oct 08, 2026Oct 20, 2026

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

ALTO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing3870
Oct 16, 2026387-2
Oct 15, 2026389+1
Oct 13, 2026388+1
Oct 08, 2026387No prior observation