Charter Communications: Implied upside of 80% Some investors believe this pause could be a sign the rally is on its last legs, but others on Wall Street are unconcerned. Among the bulls is XM Investment analyst Marios Hadjikyriacos. "Stock markets are enjoying the best of all worlds, buoyed by a resilient U.S. economy and speculation that Fed rate cuts are just around the corner, helping to justify stretched valuations," he wrote. The index has been on a breathtaking run, but some S&P 500 stocks still have ...