OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

SION $10.00 Call

SION270115C00010000

Latest saved OI506Oct 23, 2026
Last change-410vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SION $10.00 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. 9164580 2026-10-09: 110 OI2026-10-13: 107 OI2026-10-14: 107 OI2026-10-15: 107 OI2026-10-16: 116 OI2026-10-20: 916 OI2026-10-23: 506 OI Oct 09, 2026Oct 23, 2026

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

SION contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026506-410
Oct 20, 2026Viewing916+800
Oct 16, 2026116+9
Oct 15, 20261070
Oct 14, 20261070
Oct 13, 2026107-3
Oct 09, 2026110No prior observation