Some Traders Turn Bearish on Tech-Heavy QQQ

The PowerShares QQQ (NasdaqGM: QQQ), which tracks the tech-heavy Nasdaq-100 Index, is up more than 25% year-to-date. That is one of the benefits for QQQ when technology is the best-performing sector in the U.S. While stocks such as Apple (NASDAQ: AAPL), Google parent Alphabet Inc. (NASDAQ: GOOG),...