JPMorgan (JPM.US) CEO Jamie Dimon noted that the Fed might raise interest rates, and the likelihood of a rate hike would be higher than anyone's expectation, according to foreign reports.If the market anticipates a 20% chance of a rate increase, Dimon said he believes the probability will be 40-50%.(Real-time Streaming US Stocks Quote; Except All OTC quotes are at least 15 minutes delayed.)Related NewsHSBC Research Downgrades BofA to Hold, JPM/ G Sachs to Reduce; TPs Lifted