OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

IART $17.50 Call

IART270319C00017500

Latest saved OI143Oct 20, 2026
Last change0vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
IART $17.50 call open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 143710 2026-10-08: 143 OI2026-10-09: 143 OI2026-10-13: 143 OI2026-10-14: 143 OI2026-10-16: 143 OI2026-10-20: 143 OI Oct 08, 2026Oct 20, 2026

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

IART contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing1430
Oct 16, 20261430
Oct 14, 20261430
Oct 13, 20261430
Oct 09, 20261430
Oct 08, 2026143No prior observation