Bill Hwang, a 57-year-old veteran investor, managed $10 billion through his private investment firm, Archegos Capital Management. : Curated markets data, exclusive trading recommendations, Independent equity analysis & actionable investment ideas Until recently, Bill Hwang sat atop one of the biggest — and perhaps least-known — fortunes on Wall Street. Then his luck ran out. Hwang, a 57-year-old veteran investor, managed $10 billion through his private investment firm, Archegos Capital Management. He borrowed billions of dollars from Wall Street banks to build enormous positions in a few American and Chinese stocks.