The U.S. stock market has been on such a red-hot run in recent months that even market bulls are starting to say a healthy pull-back could be imminent. On Thursday, Piper Jaffray analyst Craig Johnson said key technical indicators suggest the market has become overbought in the short-term. “We have scaled back our equity exposure in our Model Portfolio as we believe a healthy correction may be just around the corner,” Johnson said. He said market sentiment is currently at a seven-year high on tax reform optimism, and a handful of key momentum and breadth indicators are painting a very bearish near-term picture for stocks.Source