Boaz Weinstein

Boaz Ronald Weinstein (born 1973) is an American hedge fund manager and founder of Saba Capital Management. He rose to prominence at Deutsche Bank in the early and mid 2000s with his credit default swap and capital structure arbitrage trading strategies. He then formed a proprietary trading group within Deutsche Bank. After leaving the bank in 2009, Weinstein started Saba Capital Management as a separate hedge fund. As of August 2025, Saba manages $6 billion in assets. Weinstein was among the first to identify and publicize a trading opportunity that was later nicknamed the "London Whale", when a trader at JPMorgan made a number of trades that exposed the firm to about $6.2 billion in losses. The trades in turn netted several hedge funds including Weinstein's hundreds of millions of dollars after they took an opposing position in the credit default swap market.