Bill Ackman Reveals New Microsoft Stake as Core Holding

Billionaire hedge fund manager Bill Ackman announced that his firm, Pershing Square Capital Management, has established a new position in Microsoft during the first quarter of 2026. Ackman disclosed this investment via a post on social media platform X, stating that the details would be formally revealed in the firm's upcoming 13F filing. Although the specific size of the stake was not disclosed, Ackman characterized Microsoft as a core holding for the fund. He justified the investment by highlighting Microsoft's status as a dominant long-term compounding franchise available at a highly compelling valuation. Ackman noted that current market dynamics, characterized by growing index ownership and capital controlled by short-term, volatility-intolerant investors, have created occasional opportunities to acquire high-quality assets at attractive prices. This move underscores Pershing Square's strategy of targeting established tech giants with strong fundamentals amidst broader market fluctuations. The announcement highlights continued institutional confidence in Microsoft's long-term growth potential despite varying market sentiments.