Shares of CyberArk (CYBR) have been strong performers lately, with the stock up 12.3% over the past month. The stock hit a new 52-week high of $293.31 in the previous session. CyberArk has gained 30.8% since the start of the year compared to the 20.6% move for the Zacks Computer and Technology sector and the 3.9% return for the Zacks Computers - IT Services industry.What's Driving the Outperformance?The stock has an impressive record of positive earnings surprises, as it hasn't missed our earnings consensu ...