Is Proto Labs Inc (NYSE:PRLB) a good investment right now? We check hedge fund and billionaire investor sentiment before delving into hours of research. Hedge funds spend millions of dollars on Ivy League graduates, expert networks, and get tips from investment bankers and industry insiders. Sure they sometimes fail miserably but historically their consensus stock picks outperformed the market after adjusting for known risk factors. Proto Labs Inc (NYSE:PRLB) has seen an increase in enthusiasm from smart money lately. Our calculations also showed that prlb isn't among the 30 most popular stocks among hedge funds.