Heartland Financial USA (NASDAQ:HTLF - Get Rating) was upgraded by equities researchers at StockNews.com from a "hold" rating to a "buy" rating in a research report issued on Friday.Several other research analysts have also recently commented on the company. Keefe, Bruyette & Woods cut Heartland Financial USA from an "outperform" rating to a "market perform" rating and set a $54.00 target price for the company. in a research report on Monday, December 12th. DA Davidson raised their target price on Heartland Financial USA to $52.00 in a research report on...