Bill Ackman speaks at CNBC's Delivering Alpha conference on September 28, 2023.
Bill Ackman speaks at CNBC's Delivering Alpha conference on September 28, 2023.
  • Billionaire investor Bill Ackman netted $200 million by betting against 30-year Treasurys, sources told the Financial Times.
  • The profit helped Pershing Square's flagship fund gain 11.6% through the year to mid-October.
  • Ackman announced on Monday that he closed his short positions, citing growing risks. 

Billionaire investor Bill Ackman's bet against 30-year Treasury bonds netted him a $200 million profit, sources told the Financial Times.

The founder of Pershing Square Capital Management initially made the short bets using options, which garnered $300 million. But to maintain his position, Ackman paid out close to $100 million in premiums.