After months of underperformance, momentum stocks steadied and some baskets started to outperform global markets through May 30, though they have yet to make up for recent losses according to a recent UBS report. There has been speculation that momentum stocks like Netflix, Inc. (NASDAQ:NFLX), Facebook Inc (NASDAQ:FB) that have reaped huge gains from the bull market so far could be a drag on the market for the rest of the year. “In the developed markets High 12 Month Price Momentum slightly outperformed in May but is down over three and six months; similarly in the emerging markets,” write UBS…