This Trillion-Dollar AI Stock Offers Better Quantum Computing Exposure Than IonQ, Rigetti,

If you want quantum computing exposure without betting the farm on a pre‑profit science project, I think a case is building that Microsoft ( $MSFT+WL +0.03% ) is the more interesting option right now. Microsoft is a $3 trillion AI stock whose own quantum roadmap has matured quietly in the background, and with sentiment cooled after a year of worry about AI spending, you're getting that quantum upside at what looks like a multiyear valuation low instead of peak euphoria. Microsoft is already a quantum platform Microsoft doesn't market itself as a quantum stock, but its Azure Quantum materials read like a company that has spent years building a full stack.

### Story Arc / How We Got Here

This follows our earlier coverage ([Bill Ackman's AI Stock Picks: $AMZN+WL, $MSFT+WL, META](/explore/bill-ackman-ai-stock-picks-amzn-msft-meta)) on 2026-08-02. Billionaire investor Bill Ackman has significant holdings in artificial intelligence-focused companies Amazon, Microsoft, and Meta Platforms. These investments represent a substantial portion of his Pershing Square portfolio and highlight his conviction in the ongoing AI build-out trend, making them key stocks for investors to consider following. · Investors seeking exposure to the AI trend may find value in monitoring the strategic allocations made by prominent fund managers like Bill Ackman.