---
title: "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?"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296026282.md"
description: "Despite a green year in the stock market, Bill Ackman’s Pershing Square USA keeps plunging. Find out why Ackman’s closed-end fund can’t seem to catch a break."
datetime: "2026-08-16T14:10:41.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296026282.md)
  - [en](https://longbridge.com/en/news/296026282.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296026282.md)
generator: "portal-rs"
---

# 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?

Despite a green year in the stock market, Bill Ackman’s Pershing Square USA keeps plunging. Find out why Ackman’s closed-end fund can’t seem to catch a break.

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## Related News & Research

- [UBS Global Wealth Management lifts S&P 500 year-end target to 8,100](https://longbridge.com/en/news/296597853.md)
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---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**