In his appearance earlier this month on "The Master Investor Podcast with Wilfred Frost," JPMorgan Chase (JPM) CEO Jamie Dimon was predictably opinionated when it came to finding opportunities in the market – or, more specifically, a lack thereof. With yields on the 10-year Treasury near recent highs above 4.61%, Dimon said, "Personally, no. More News from BarchartIn the Wall Street CEO's opinion, even in a best-case scenario for inflation, "the 10-year bond should probably be at four to four and a half." So is Jamie Dimon right about long-term bonds here – or just overly cautious? The 10-year Treasury yield currently sits around 4.6%, having risen significantly since the start of the Iran War earlier in the year.