Major U.S. indices closed Thursday higher, with the Dow Jones Industrial Average advancing 0.55% to 50,285.66.

Quantum stocks IonQ, Rigetti, and D-Wave surged on reports the US Commerce Department may take equity stakes, but no deals have been confirmed yet.

D-Wave Quantum secured a proposed $100 million CHIPS Act funding commitment to accelerate development of its quantum computing technologies and strengthen U.S. quantum…