Have you been paying attention to shares of Mueller Water Products (MWA) ? Shares have been on the move with the stock up 1.2% over the past month. The stock hit a new 52-week high of $21.2 in the previous session. Mueller Water Products has gained 45.1% since the start of the year compared to the 8.2% move for the Zacks Industrial Products sector and the -5.6% return for the Zacks Steel - Pipe and Tube industry.What's Driving the Outperformance?The stock has a great record of positive earnings surprises, a ...