Have you been paying attention to shares of AtriCure (ATRC) ? Shares have been on the move with the stock up 2.4% over the past month. The stock hit a new 52-week high of $43.18 in the previous session. AtriCure has gained 7.2% since the start of the year compared to the 7.8% move for the Zacks Medical sector and the -0.5% return for the Zacks Medical - Products industry.What's Driving the Outperformance?The stock has a great record of positive earnings surprises, as it hasn't missed our earnings consensus ...