The billionaire investor George Soros is known for making a series of predictions across topics as diverse as social-media networks, the Chinese economy, and Iranian politics. Markets Insider examined eight of Soros' predictions, as well as the outcomes. Visit MarketsInsider.com for more stories. The billionaire investor George Soros is not shy about making predictions, in financial markets or otherwise. Soros is an investor of almost mythical status, having accumulated a fortune of nearly $40 billion from trading across currency, equity, and fixed-income markets.