Nasdaq breaks above all-time closing record

The Nasdaq jumped as high as 5,069.17, led by shares of Apple , which has been among the biggest positive influences on the index in recent years. Rapid growth in biotechnology companies such as Gilead and social media firms like Facebook , driven by the popularity of mobile computing, have also helped to lift the Nasdaq to its current levels. Stephen Massocca, chief investment officer at Wedbush Equity Management LLC in San Francisco, said the Nasdaq has a good chance of sustaining its current