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Contract OI history

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Jan 21, 2028 EXPIRATION

ALTO $4.00 Call

ALTO280121C00004000

Latest saved OI17Oct 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. 1780 2026-10-08: 7 OI2026-10-13: 17 OI2026-10-15: 17 OI2026-10-16: 17 OI2026-10-20: 17 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, 2026Viewing170
Oct 16, 2026170
Oct 15, 2026170
Oct 13, 202617+10
Oct 08, 20267No prior observation