QCi’s photonic chips could reduce the cost of quantum computers. IonQ’s trapped ion technology could shrink quantum processing units. Both of these companies are growing, but one is grossly overvalued.

Nvidia’s VC arm was among the participants in a recently announced capital raise for Quantinuum, which is Honeywell’s quantum-computing business.

Keithen Drury has positions in Alphabet and Nvidia. The Motley Fool has positions in and recommends Alphabet, Microsoft, and Nvidia. The Motley Fool recommends the following options: long January 2026 $395 calls on Microsoft and short January 2026 $405 calls on Microsoft. The Motley Fool has a disclosure policy.