OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

ALT $3.00 Call

ALT261218C00003000

Latest saved OI1,608Oct 20, 2026
Last change+923vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALT $3.00 call open interest history 5 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 1,6088040 2026-10-09: 820 OI2026-10-13: 820 OI2026-10-14: 790 OI2026-10-16: 685 OI2026-10-20: 1,608 OI Oct 09, 2026Oct 20, 2026

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

ALT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing1,608+923
Oct 16, 2026685-105
Oct 14, 2026790-30
Oct 13, 20268200
Oct 09, 2026820No prior observation