Shares of Personalis (PSNL) have been strong performers lately, with the stock up 167.7% over the past month. The stock hit a new 52-week high of $4.58 in the previous session. Personalis has gained 105.2% since the start of the year compared to the 6.7% move for the Zacks Medical sector and the 13.4% return for the Zacks Medical - Generic Drugs industry. What's Driving the Outperformance? The stock has a great record of positive earnings surprises, as it hasn't missed our earnings consensus estimate in any ...