Billionaire Bill Ackman’s new fund is tanking while the S&P 500 hits a record high — he calls it ‘absurd,’ but what’s really gone wrong?
Pershing Square founder Bill Ackman’s closed-end fund Pershing Square USA (PSUS), launched in April, has fallen since its $5 billion IPO, trading in the $40s versus IPO pricing near $50. PSUS estimates NAV per share at $50.32, about 20% above the market price, which Ackman called “absurd.” Reported drivers include a wide discount to NAV, marketing issues, and high fees (~2% vs VOO at 0.03%).
How this was made

The 30-second read
Why it matters
For traders, the key actionable element is the stated NAV versus market price gap and management’s attribution to IPO technical factors, limited portfolio transparency, and high fees.
Market read
PSUS is highlighted as lagging the S&P 500, with a large, persistent discount to NAV and a fee-related demand problem.
What to watch
The article cites high fees and marketing, but does not quantify portfolio performance drivers or whether the NAV estimate itself has changed materially since prior reporting.
Background
The piece discusses Pershing Square USA’s post-IPO discount to NAV and Ackman’s explanation for weak demand and marketing.
Ticker impact
Pershing Square USA (PSUS) trades around the $40s versus an estimated NAV per share of $50.32, widening the discount Ackman calls “absurd.”
Near-term trading likely remains discount/NAV-sensitive, with sentiment pressured until demand or discount narrowing improves.
The text provides specific NAV and market price relationship plus management’s stated causes, but it does not disclose a new filing, guidance change, or fresh transaction that would force an immediate repricing.
Market effects
Limited direct sector read-through; it is primarily a closed-end fund discount and fee narrative.
US-focused retail and advisor sentiment toward closed-end funds versus broad US equities.
Low, as the story is about a US-listed closed-end fund’s discount mechanics.
Counterpoint
The discount may reflect temporary positioning and liquidity rather than fundamental deterioration, and marketing efforts could narrow the gap over time.
Key entities
- closed-end fundPershing Square USA closed-end fund (PSUS)
Trades at a discount to estimated NAV per share ($50.32 vs roughly $40s), with Ackman calling the discount “absurd.”
- fund managerBill Ackman
Pershing Square founder who attributes the discount to IPO technical factors and insufficient marketing demand.


