Shares of Enova International (ENVA) have been strong performers lately, with the stock up 22.7% over the past month. The stock hit a new 52-week high of $108.15 in the previous session. Enova International has gained 92.8% since the start of the year compared to the 27% move for the Zacks Finance sector and the 41.4% return for the Zacks Financial - Consumer Loans industry.What's Driving the Outperformance?The stock has a great record of positive earnings surprises, as it hasn't missed our earnings consen ...