Nasdaq in bear market, first of the three major U.S. indexes

NEW YORK (Reuters) - The Nasdaq Composite Index confirmed on Friday it is in a bear market for the first time since 2008, underscoring fears that the longest bull run in history for U.S. stocks could soon be over.The index finished the day down 21.9 percent from its Aug. 29 record closing high, exceeding the 20 percent decline considered the threshold for a bear market.The Nasdaq is the first of the three major U.S. stock indexes to cross that threshold, with its drop in less than four months..