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Contract OI history

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Apr 16, 2027 EXPIRATION

ALTO $4.00 Call

ALTO270416C00004000

Latest saved OI279Oct 20, 2026
Last change+2vs 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. 2791390 2026-10-08: 273 OI2026-10-13: 272 OI2026-10-15: 277 OI2026-10-16: 277 OI2026-10-20: 279 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, 2026Viewing279+2
Oct 16, 20262770
Oct 15, 2026277+5
Oct 13, 2026272-1
Oct 08, 2026273No prior observation