Amazon $AMZN is the first of major U.S. tech stocks to hit a new high, +5.3% to $2,283 today. But it still trails Microsoft and Apple in mkt value. The Big 5 U.S. tech giants: 

$MSFT $1.32 trillion
$AAPL $1.26 trillion
$AMZN $1.14 trillion
$GOOGL $872 billion
$FB $508 billion