OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

IA $17.50 Call

IA261218C00017500

Latest saved OI1Oct 19, 2026
Last change0vs previous saved observation
Saved market days2Oct 16, 2026 onwards
Daily open interest Hover a point for its date and OI
IA $17.50 call open interest history 2 saved observations from 2026-10-16 to 2026-10-19. Exact values and changes are listed in the table below. 10 2026-10-16: 1 OI2026-10-19: 1 OI Oct 16, 2026Oct 19, 2026

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

IA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 19, 2026Viewing10
Oct 16, 20261No prior observation