Morning Movers: Under Armour Soars, American Airlines Tumbles, Ford Motor Gains

After dropping a bit yesterday following the release of President Donald J. Trump's tax plan , stocks look set for a slightly higher open today. S&P 500 futures have ticked up 0.1%, while Dow Jones Industrial Average futures have advanced 0.1%. Nasdaq Composite futures have risen 0.2%. Alexion Pharmaceuticals ( ALXN ) has climbed 4.4% to $125.99 after reporting better-than-expected earnings and revenue . American Airlines Group ( AAL ) has tumbled 5% to $44.10 after beating earnings forecasts but...