Top increases in # users holding for stocks held by Robinhood traders today:    1. $WKHS: +30988 2. $ODP: +12082 3. $LCA: +9559 4. $PLUG: +6075 5. $BLNK: +5777 6. $UBER: +5228 7. $AMZN: +4306 8. $BE: +3920 9. $GPS: +3569 10. $AAPL: +3069