Pershing Square USA, Ltd. Overview
Pro stress-test →Pershing Square USA is a closed-end fund led by Bill Ackman that invests in a dozen or so large public companies. The fund began trading in April 2026, making $5 billion for the new fund through its IPO. The launch marks a historic entry for a major hedge fund into the U.S. retail investment market.
Strategic Profile
Pro stress-test →Pershing Square specializes in activist investments, using influence over company management through the purchase of shares and by exerting pressure on management. Ackman's investments have produced annualized returns of 16.2% since he founded his limited partnership in 2004. Ackman has exited the short-selling business and says he's now focused on long-term growth and value creation in his portfolios.
Competitive Landscape
Pro stress-test →Pershing Square USA competes in the closed-end activist hedge fund space against traditional hedge funds (Pershing Square Holdings in Europe, other activist managers) and open-end mutual funds. The fund's primary competitive advantage is Ackman's track record and activist approach to large-cap equities. Key differentiators include lower minimums and retail accessibility versus comparable hedge fund vehicles.
Industry Context
Pershing Square USA, Ltd. operates in Closed-end activist hedge funds.
Key facts
Founded: 2004 (Pershing Square Capital); 2026 (PSUS closed-end fund) · Headquarters: Los Angeles, US · Market cap: ~$5B (based on IPO raise)