Only add the requested symbol if it exists in instrument list
Only add the requested symbol if it exists in instrument list

kaffeebrauer/Lean,StefanoRaggi/Lean,andrewhart098/Lean,AnshulYADAV007/Lean,jameschch/Lean,redmeros/Lean,tomhunter-gh/Lean,JKarathiya/Lean,kaffeebrauer/Lean,andrewhart098/Lean,kaffeebrauer/Lean,redmeros/Lean,StefanoRaggi/Lean,AlexCatarino/Lean,AlexCatarino/Lean,JKarathiya/Lean,Jay-Jay-D/LeanSTP,JKarathiya/Lean,Jay-Jay-D/LeanSTP,devalkeralia/Lean,young-zhang/Lean,Mendelone/forex_trading,jameschch/Lean,AnshulYADAV007/Lean,jameschch/Lean,young-zhang/Lean,JKarathiya/Lean,devalkeralia/Lean,young-zhang/Lean,devalkeralia/Lean,AlexCatarino/Lean,Mendelone/forex_trading,Jay-Jay-D/LeanSTP,Mendelone/forex_trading,StefanoRaggi/Lean,andrewhart098/Lean,AnshulYADAV007/Lean,QuantConnect/Lean,AnshulYADAV007/Lean,kaffeebrauer/Lean,Mendelone/forex_trading,andrewhart098/Lean,Jay-Jay-D/LeanSTP,tomhunter-gh/Lean,AnshulYADAV007/Lean,jameschch/Lean,StefanoRaggi/Lean,jameschch/Lean,devalkeralia/Lean,StefanoRaggi/Lean,QuantConnect/Lean,Jay-Jay-D/LeanSTP,tomhunter-gh/Lean,kaffeebrauer/Lean,AlexCatarino/Lean,redmeros/Lean,young-zhang/Lean,redmeros/Lean,QuantConnect/Lean,QuantConnect/Lean,tomhunter-gh/Lean