Personalis (PSNL) shares ended the last trading session 14.2% higher at $7.51. The jump came on an impressive volume with a higher-than-average number of shares changing hands in the session. This compares to the stock's 34.6% gain over the past four weeks.The sudden uptrend in the stock price can be attributed to the positive investor mindset regarding the continued growth in revenues from the sale of Personalis’ pharma tests and services, signifying increasing adoption of its technology.This provider of c ...