On The Fly: Stocks end week lower as second quarter kicks off PNRA;SUN;TSLA;F;GM;FCAU;TM;HPE;CSC;DXC;VZ;YHOO;RL;URBN;AMZN;COST;UN;UL;RTN;LMT;BA;GNCMA;QVCA;QVCB;LVNTA;LINTA;MON;GBX;YUMC;BBBY;STZ;FRED;AYI;WBA;RECN;MSM;WDFC;PSMT