As Billionaire Bill Ackman Calls Meta Platforms Cheap, Should You Buy META Stock?

Billionaire investor Bill Ackman recently turned heads on Wall Street by disclosing a significant new stake in Meta Platforms (META), signaling his belief that the tech giant’s stock is undervalued despite ongoing volatility. Through his hedge fund Pershing Square Capital Management, Ackman allocated a major new stake in Meta Platforms, now representing about 10% of the fund's capital as of the end of 2025.

In its annual investor presentation, Pershing said that Meta’s current share price significantly undervalues its long-term artificial intelligence (AI) driven growth potential, arguing that investor concerns over heavy AI spending are overstated. META shares have declined amid fears about substantial AI-related capital expenditures for 2026, but Pershing noted that the stock’s valuation is lower than peers like Alphabet (GOOGL), Apple (AAPL) , and Nvidia (NVDA) .