Softbank's stake in China's e-commerce behemoth Alibaba means huge upside for the stock, hedge fund founder Alex Sacerdote said Friday.

"It's the best setup we've seen since Apple in 2007 for large wealth creation," he said. "There's three things we look for. The first is a major market inflecting on the upturn, and China e-commerce is the mother of all s-curves. We've never seen anything like this."