OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

SSYS $15.00 Call

SSYS270115C00015000

Latest saved OI1,622Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
SSYS $15.00 call open interest history 7 saved observations from 2026-10-07 to 2026-10-23. Exact values and changes are listed in the table below. 1,6248120 2026-10-07: 1,624 OI2026-10-09: 1,624 OI2026-10-13: 1,622 OI2026-10-14: 1,622 OI2026-10-16: 1,622 OI2026-10-20: 1,622 OI2026-10-23: 1,622 OI Oct 07, 2026Oct 23, 2026

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

SSYS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,6220
Oct 20, 20261,6220
Oct 16, 20261,6220
Oct 14, 20261,6220
Oct 13, 20261,622-2
Oct 09, 20261,6240
Oct 07, 20261,624No prior observation