Key Takeaways
- Pershing Square revealed a fresh Microsoft stake, with Bill Ackman describing the valuation as “highly compelling”
- The hedge fund started accumulating Microsoft shares in February following a post-earnings decline
- Ackman’s NYSE-listed closed-end fund, Pershing Square USA, launched in April 2026, also holds Microsoft as a significant position
- Microsoft shares have declined over 15% year-to-date as market participants question its AI advantage versus Google and Amazon
- This investment continues Pershing Square’s trend of accumulating major technology companies including Meta, Amazon, and Alphabet
Billionaire investor Bill Ackman’s Pershing Square revealed a newly established position in Microsoft (MSFT) on Friday, with Ackman characterizing the technology behemoth as offering a “highly compelling valuation” following the stock’s year-to-date decline exceeding 15%.
Ackman made the announcement via X, indicating that Pershing Square’s 13F disclosure — scheduled for filing later that day — would show the new holding. According to Ackman, the firm started building its position in February after the stock retreated following its quarterly earnings report.
“In our 13F which we will file later today, we will disclose a new position in Microsoft, a company we have followed for many years now offered at a highly compelling valuation,” Ackman stated.
Microsoft shares rose approximately 1% on Friday following Ackman’s announcement. Prior to Friday’s trading session, the stock had experienced significant headwinds throughout 2026, declining more than 15% year-to-date.
The year-to-date weakness stems primarily from market anxiety that Microsoft’s initial advantage in artificial intelligence is diminishing. Both Google and Amazon have demonstrated substantial advancement in their respective AI initiatives, sparking debate about whether Microsoft’s early positioning still provides meaningful differentiation.
NYSE-Listed Fund Holds Microsoft Too
Pershing Square USA, Ackman’s newly launched closed-end fund that commenced trading on the New York Stock Exchange in late April 2026, has similarly established Microsoft as a primary holding. This represents a distinct investment vehicle from his flagship hedge fund.
The fund’s NYSE listing occurred just weeks prior to the Microsoft position disclosure, resulting in two separate Pershing Square entities owning the stock simultaneously.
Expanding Technology Sector Exposure
The Microsoft investment aligns with an established strategy. Ackman has been systematically expanding his exposure to leading technology companies over recent years.
In February 2026, he announced a Meta position, supporting the social media giant’s AI push. Prior to that, he invested in Amazon, while Pershing Square established an Alphabet position in late 2022.
Microsoft represents the most recent addition to this technology-focused portfolio. Ackman has not publicly revealed the dollar value or share count of the Microsoft holding.
The February entry point followed Microsoft’s earnings announcement and subsequent stock decline. Ackman indicated that the valuation during that period presented an opportunity too attractive to ignore.
Microsoft has continued facing downward pressure since then. The stock’s decline of over 15% during 2026 mirrors widespread market concerns regarding intensifying AI competition rather than temporary weakness.
Ackman offered no specific price objective or timeline regarding Pershing Square’s intended holding period for the investment.
The 13F regulatory filing, covering first quarter 2026 holdings, was due for SEC submission on Friday and was anticipated to disclose the complete position size.
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