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Contract OI history

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Jan 21, 2028 EXPIRATION

SSYS $20.00 Call

SSYS280121C00020000

Latest saved OI211Oct 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 $20.00 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. 2111050 2026-10-07: 210 OI2026-10-09: 209 OI2026-10-13: 209 OI2026-10-14: 209 OI2026-10-16: 211 OI2026-10-20: 211 OI2026-10-23: 211 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, 2026Viewing2110
Oct 20, 20262110
Oct 16, 2026211+2
Oct 14, 20262090
Oct 13, 20262090
Oct 09, 2026209-1
Oct 07, 2026210No prior observation