ARK Invest launched it’s first ETF in two years on Tuesday. ARK Space Exploration, which will trade under $ARKX top two holdings are Trimble and another Ark fund called the 3D Printing ETF $PRNT with weights of 8.6% and 6%. Other large stakes include Kratos Defense and Security Solutions $KTOS, L3Harris Technologies $LHC and JD.com $JD.