To win the quantum computing race, you need cash -- and Alphabet has a lot of cash.Quantum computing is hot, hot, hot, with the Defiance Quantum ETF (QTUM 3.29%) up 40% year to date and trading near its all-time high. And yet investors are starting to sour on one quantum computing stock in particular: IonQ (IONQ 4.19%).From early January 2025 through about mid-October, shares of IonQ nearly tripled in price. But since mid-October, IonQ's stock price has been cut by one-third, falling to $52 and change at th ...