OITracker Cboe delayed data

Contract OI history

Back to ALGN

Dec 18, 2026 EXPIRATION

ALGN $165.00 Call

ALGN261218C00165000

Latest saved OI5,020Oct 23, 2026
Last change+6vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALGN $165.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 5,0202,5100 2026-10-09: 5,013 OI2026-10-13: 5,013 OI2026-10-14: 5,013 OI2026-10-15: 5,013 OI2026-10-16: 5,013 OI2026-10-21: 5,014 OI2026-10-23: 5,020 OI Oct 09, 2026Oct 23, 2026

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

ALGN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5,020+6
Oct 21, 20265,014+1
Oct 16, 20265,0130
Oct 15, 20265,0130
Oct 14, 20265,0130
Oct 13, 20265,0130
Oct 09, 20265,013No prior observation