Marvell (MRVL) shares plunged after announcing it will buy Lumentum (LITE) in a $115 billion all-stock deal. Palantir (PLTR) continues to post impressive earnings backed by more-than-doubled commercial revenue growth. Apple (AAPL) is closing out what CEO John Ternus calls a record fiscal year for the iPhone developer. Marley Kayden take investors through the biggest stories of Monday's trading session.