Have you been paying attention to shares of AxoGen (AXGN) ? Shares have been on the move with the stock up 28.6% over the past month. The stock hit a new 52-week high of $11.76 in the previous session. AxoGen has gained 71.7% since the start of the year compared to the 9.5% move for the Zacks Medical sector and the 7.6% return for the Zacks Medical - Instruments industry.What's Driving the Outperformance?The stock has an impressive record of positive earnings surprises, as it hasn't missed our earnings cons ...