OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

ALT $4.50 Call

ALT261218C00004500

Latest saved OI444Oct 20, 2026
Last change0vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALT $4.50 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. 4442220 2026-10-09: 244 OI2026-10-13: 244 OI2026-10-14: 444 OI2026-10-16: 444 OI2026-10-20: 444 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, 2026Viewing4440
Oct 16, 20264440
Oct 14, 2026444+200
Oct 13, 20262440
Oct 09, 2026244No prior observation