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Contract OI history

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Mar 19, 2027 EXPIRATION

SSYS $12.50 Call

SSYS270319C00012500

Latest saved OI247Oct 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 $12.50 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. 2471230 2026-10-07: 225 OI2026-10-09: 227 OI2026-10-13: 247 OI2026-10-14: 247 OI2026-10-16: 247 OI2026-10-20: 247 OI2026-10-23: 247 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, 2026Viewing2470
Oct 20, 20262470
Oct 16, 20262470
Oct 14, 20262470
Oct 13, 2026247+20
Oct 09, 2026227+2
Oct 07, 2026225No prior observation