Top 15 stocks added by Robinhood users so far today (# of users holding)  1 Kitov $KTOV 2 Ideanomics $IDEX 3 Apple $AAPL 4 Workhorse $WKHS 5 Tortoise $SHLL 6 Amazon $AMZN 7 Plug Power $PLUG 8 $TBIO 9 $CIG.C 10 $SHIP 11 $SPCE 12 Inovio $INO 13 Fastly $FSLY 14 $TOPS 15 $CTRM