When a small firm’s stock price soars, and more than doubles, curiosity pushes us to investigate.    Alterity Therapeutics Yesterday the stock soared for a firm called Alterity Therapeutics (ATHE) closing at $3.43 UP $2.08. We found that this firm’s market cap is $3.72 billion which boosted our curiosity to learn . . . This content is for paid subscribers. Please click here to subscribe or here to log …