Mark Zuckerberg is no longer among the world’s 10 richest technologist

The 28-year-old’s fortune dropped by $423 million yesterday as shares of the world’s largest social media company fell 4 percent to $20.04 in New York, a record low. Zuckerberg is now worth $10.2 billion. He is about $400 million behind James Goodnight, the co-founder of Cary, North Carolina-based software maker SAS Institute Inc., who now ranks as technology’s 10th- richest person, according to the Bloomberg Billionaires Index.