The Nasdaq composite index briefly touched 3,000 on Wednesday for the first time since the collapse in dot-com stocks more than a decade ago. Stocks ended lower, but it was still the best February on Wall Street in 14 years. The milestone for the Nasdaq, heavy with technology stocks, came a day after the Dow Jones industrial average closed above 13,000 for the first time since May 2008. Apple, the Nasdaq’s biggest component, topped $500 billion in market value, the only company above the half-trillion mark and only the sixth in U.S. corporate history to grow so big. Apple might reveal its next iPad model next week. The Nasdaq last hit 3,000 on Dec. 13, 2000. I