Most active stocks from today's After-hours trading  NASDAQ listed: $TOPS Caesars $CZR Vaxart $VX Biocept $BIOC Microsoft $MSFT $VBIV $GLBS $ON $HBAN $ALKS  NYSE listed: $NIO $SPY Bank of America $BAC $UBER Twitter $TWTR JPMorgan $JPM Annaly $NLY General Motors $GM $ASHR $UGAZ