1311 ET - Rising bond yields beat out the prospect of an AI bubble as the biggest "tail risk," according to the latest Bank of America survey of global fund managers. About one-third of survey respondents named a "disorderly rise in bond yields" as the biggest tail risk, while 28% named an AI bubble, down from 32% in August. Bond yields have been climbing, fueled by surging energy prices brought on by the Iran war and growing national debt among other factors. The 10-year Treasury yield touched 5.04% earlier, its highest level since 2007.