Billionaires Have Had a Big Impact on This Trio of Penny Stocks

Voltari, Synthesis Energy Systems, and PlasmaTech Biopharmaceuticals are big winners

Billionaire Investor Carl Icahn

Jeremy Bales/Bloomberg

Three high-profile billionaires have taken stakes in so-called penny stocks, sending shares of the companies skyrocketing.  

To continue reading this article you must be a Bloomberg Professional Service Subscriber.