Traders work on the floor of the New York Stock Exchange on October 20, 2025.Spencer Platt/Getty Images The S&P 500 is up 15% in 2025 amid the enduring frenzy for AI. BofA wrote this week that it sees five risks that could stall the rally. Credit concerns and macro uncertainty are among the big risks BofA is watching. Another year, another double-digit gain for the S&P 500. But while AI seems to be an unstoppable force propping up the three-year bull rally, Bank of America says unique risks are e ...