There's a lot to like about this quantum computing leader. The quantum computing technology from IonQ (IONQ -4.26%) has the potential to revolutionize everything from machine learning to optimization, simulations, and cryptography. There's a lot of excitement in this field, which many see as the next step to tackling complex problems more effectively than even the most advanced accelerated computers. On the other hand, shares of IonQ have been extremely volatile, down more than 30% this year. The market app ...