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Contract OI history

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Jan 19, 2029 EXPIRATION

ALTO $4.00 Call

ALTO290119C00004000

Latest saved OI100Oct 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. 100500 2026-10-08: 0 OI2026-10-13: 0 OI2026-10-15: 20 OI2026-10-16: 100 OI2026-10-20: 100 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, 2026Viewing1000
Oct 16, 2026100+80
Oct 15, 202620+20
Oct 13, 202600
Oct 08, 20260No prior observation