Bill Ackman says Wall Street is misreading Amazon, Microsoft, Meta, and Alphabet

Bill Ackman argued that Wall Street is mispricing Amazon, Microsoft, Meta, and Alphabet by underappreciating how their AI investments will convert into revenue, suggesting the Big Tech names may be undervalued. The Pershing Square founder's thesis implies a possible correction higher as those AI-driven returns materialize. The call matters because it challenges the market's skeptical read on hyperscaler AI capex at a time when the four companies remain among the largest weights in major indices. Investors will watch upcoming earnings and AI revenue disclosures from the quartet for evidence supporting or undercutting Ackman's view.