Have you been paying attention to shares of MGIC Investment (MTG) ? Shares have been on the move with the stock up 14.7% over the past month. The stock hit a new 52-week high of $25.35 in the previous session. MGIC Investment has gained 28.8% since the start of the year compared to the 13.9% move for the Zacks Finance sector and the 15.3% return for the Zacks Insurance - Multi line industry.What's Driving the Outperformance?The stock has a great record of positive earnings surprises, as it hasn't missed our ...