Operating margin (%) among largest #stocks $SPX $SPY 1.  APPLE INC. $AAPL: 24.5 2.  MICROSOFT CORPORATIO. $MSFT: 37.5 3.   INC. $AMZN: 4.8 4.  ALPHABET INC. $GOOGL: 21.4 5.  FACEBOOK, INC. $FB: 36.2 United States United States United States United States United States