Why he could: Golisano is one of the only candidates on Nader's list who's run for office before. As the founding member of the Independence Party of New York, Golisano mounted three unsuccessful runs for New York governor in 1994, 1998, and 2002. He considered running again as a Republican in 2006. Since 2011, he has been a spokesman for National Popular Vote, a nonprofit that aims to eliminate the electoral college in favor of a popular vote system.
Why he probably won't: Golisano reportedly spent $90 million of his own money backing his failed gubernatorial bids. While his pockets are deep, would he really be up for bankrolling a 50-state campaign?
Why he could: The PIMCO co-founder certainly doesn't mind the spotlight. During the fiscal cliff and debt ceiling debates he was a major talking-head presence on business networks, opines regularly on monetary policy, and was a major donor to the Obama campaign.
Why he probably won't: His television appearances in recent years aside, Gross hasn't sought out the media glare in the same way that many on this list have. While he's clearly knowledgeable and concerned about the country's economic health, there isn't much to indicate that he's politically ambitious enough to sacrifice hundreds of millions of his own money for a long-shot presidential bid.
Why she could run: The most powerful woman in U.S. finance, Johnson is president and CEO of Fidelity Investments. The Boston native has consistently given to Republican candidates: from Scott Brown to Rob Portman to John Boehner to Gabriel Gomez. She was also a big Romney donor in 2012.
Why she probably won't: While she's been a major player in the financial world for decades, Johnson has no track record as being particularly outspoken politically.