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.
Why he could: One of the world's 100 richest people, Kaiser is chairman of BOK Financial Corp. and a major philanthropist. He was also a major fundraiser and bundler for Obama's 2008 campaign. His George Kaiser Family Foundation invests heavily in early childhood education and community health.
Why he probably won't: The electoral hopes for a Jewish Democrat from Oklahoma seem slim. Add to that the negative blowback from a 2011 investigation into Kaiser's alleged exploitation of tax avoidance strategies and Kaiser's link to failed solar-panel maker Solyndra, and it seems unlikely that Kaiser would desire the scrutiny of the national limelight.