MGIC (MTG) (RDN) (BAC) (GS) (MPC) (HFC) (CVI) (WNR) Plunge

MGIC Investment Corp. (MTG), Radian Group Inc. (RDN), Bank of America Corp. (BAC), Goldman Sachs (GS), Marathon Petroleum Corp. (MPC), HollyFrontier Corp. (HFC), CVR Energy Inc. (CVI) and Western Refining Inc. (WNR) all plunge in Monday's trading.

Bank of America Corp. (BAC) was the worst performer Monday in the Dow Jones Industrial Average, falling 7.9 percent to $6.42. Goldman Sachs Group Inc. (GS) plummeted 4.7 percent to $106.51. That the lowest the financial institution has traded since March 2009.

MGIC Investment Corp. (MTG), the largest mortgage insurer in the United States, fell 11 percent to $1.70. The second largest mortgage insurer, Radian Group Inc. (RDN), was down 8.9 percent to $2.06.

Marathon Petroleum Corp. (MPC) was the second worst performer in the Standard & Poor’s 500 Index, dropping 6.9 percent to $32.57. HollyFrontier Corp. (HFC) declined 5.8 percent to $62.91. CVR Energy Inc. (CVI) fell 5.8 percent to $23.04. Western Refining Inc. (WNR) slashed 4.1 percent to $14.84.