Billionaires Bill Ackman, Izzy Englander, and David Tepper Own These 2 Quantum Computing Stocks. Should You? - The Globe and Mail

Three billionaire investors—Bill Ackman, Izzy Englander, and David Tepper—hold significant stakes in two quantum computing stocks: IonQ and Rigetti Computing, per recent SEC filings. IonQ, a trapped-ion quantum computing leader, saw Ackman’s Pershing Square Capital acquire a 5% stake, citing its scalable architecture and partnerships with Microsoft and AWS. Rigetti, a superconducting qubit specialist, attracted Englander’s Millennium Management and Tepper’s Appaloosa Management, likely due to its hybrid quantum-classical cloud platform. Analysts note these bets reflect growing institutional confidence in quantum’s long-term potential, despite near-term volatility and unproven commercial applications. Retail investors should weigh high risk-reward profiles: both stocks surged over 20% YTD but face fierce competition from IBM and Google in the race for quantum advantage.