Shares of D-Wave Quantum sank Tuesday morning, giving back the stock's Monday gains, halting a rally that started when the company said it had made a breakthrough last week.

Cheng Xin / Getty Images D-Wave Quantum shares were on track for a fresh record closing high Monday following last week's claim that the company's quantum computer outperformed a supercomputer.

Quantum computing pioneer D-Wave has seen its stock surge tenfold over the prior six months, despite modest current revenue. Recent technological breakthroughs and growing customer bookings suggest ...

D-Wave stock is climbing rapidly today after Microsoft announced a new quantum-computing chip. Microsoft's quantum chip uses a new architecture approach and could help solve challenges in the field.