How Long Will The Momentum Party Last?

Is a death cross near? Yes, according to David Rosenberg, chief economist and strategist at Gluskin Sheff. Citing a laundry list of reasons for this year's revival in market volatility, he told CNBC this week that the S&P 500's 50-day average may soon slip below its 200-day average – a so-called death cross that market technicians say would signal a bearish shift for the market outlook.