EXCLUSIVE: The Biggest Risk To S&P 500's Historic Run Could Be One Number: 5%

WisdomTree's Kevin Flanagan warns that a 10-year Treasury yield reaching 5% could pose a significant threat to the S&P 500's rally. As Treasury yields have climbed to 4.57% amid inflation concerns from Middle East tensions, higher yields reduce the appeal of equities and pressure stock valuations, particularly for growth-oriented sectors. While stocks continue near record highs, the bond market may be signaling that investors should prepare for sustained elevated interest rates.