IonQ (IONQ -1.89%) has been one of the market's best-performing stocks over the last year. The quantum computing specialist's share price is up a staggering 252.5% as investors got excited about its technologies and more bullish about growth stocks as a class. Following on the heels of explosive gains for top artificial intelligence (AI) stocks, there is increased hope that quantum computing will push AI technology even further, revolutionize computing as a whole, and deliver incredible returns for early in ...