Health stocks boost Wall Street; energy a drag

Analysts said the post-U.S. election rally may be losing momentum, wit the S&P 500 now up roughly 8 percent for the year to date. Wall Street has risen sharply following Donald Trump's White House win, helped in part by investor expectations that his plans to increase infrastructure spending, cut corporate taxes and reduce regulation will boost the economy. "The Trump rally seems to have stalled out to some extent, and I think it's stalled because we're starting to run into valuation concern