MBIA The insurance company was downgraded to sell from hold at TheStreet Ratings on Tuesday. TheStreet Ratings gives MBIA a D+ grade. The stock closed Friday at $10.23 and has fallen 11.73% year to date. Eagle Rock Energy Partners The natural gas company was downgraded to hold from buy at TheStreet Ratings on Monday. TheStreet Ratings gives Eagle Rock Energy Partners a C+ grade. The stock closed Friday at $10.78 and has fallen 7.31% year to date.