US equity markets ended Friday sharply lower, capping a difficult week for technology shares as investors shifted capital toward value-oriented names. The Nasdaq Composite led losses, falling 1.6 percent as selling pressure persisted across major tech stocks. The S&P 500 declined about 1 percent, retreating a day after briefly crossing the 6,900 level for the first time. The Dow Jones Industrial Average, which has lower exposure to technology, slipped a more modest 0.5 percent.