New York, Dec 12 (Inditop) A leading Wall Street broker has been arrested on suspicion of conducting a $50-billion fraud, the Wall Street Journal reported Friday.Former Nasdaq chairman Bernard L. Madoff, who was a leading trader on the New York exchange for 50 years, was turned in to federal agents by his sons for running what they said he called a giant “Ponzi scheme”.Charles Ponzi was responsible for one of the biggest frauds in US history and his name is given to pyramid-selling schemes where people pay into a programme that does not exist.

“Our complaint alleges a stunning fraud that appears to be of epic proportions,” said Andrew M. Calamari, associate director of enforcement in the Securities and Exchange Commission’s New York office.