Fix sign bug in ConvertHolding
Fix sign bug in ConvertHolding

JKarathiya/Lean,jameschch/Lean,QuantConnect/Lean,JKarathiya/Lean,StefanoRaggi/Lean,jameschch/Lean,StefanoRaggi/Lean,QuantConnect/Lean,JKarathiya/Lean,JKarathiya/Lean,StefanoRaggi/Lean,QuantConnect/Lean,jameschch/Lean,StefanoRaggi/Lean,AlexCatarino/Lean,jameschch/Lean,QuantConnect/Lean,jameschch/Lean,AlexCatarino/Lean,AlexCatarino/Lean,AlexCatarino/Lean,StefanoRaggi/Lean