According to the Zhitong Finance APP, during Post-Market Trading on Tuesday, stocks related to quantum computing such as IonQ Inc (IONQ.US) plummeted after NVIDIA CEO Jensen Huang stated that a "very useful" quantum computer may still take decades to realize.

Jensen Huang stated, "If you say that a very useful quantum computer can be made within 15 years, that might be a bit early. If you say 30 years, that might be too late. If you say 20 years, I think many of us would believe that."

IonQ and Quantum Computing (QUBT.US) fell more than 16% in after-hours trading, while D-Wave Quantum (QBTS.US) and Rigetti Computing (RGTI.US) dropped more than 14%. In recent months, excitement over the potential of quantum computing technology has driven these companies' stock prices up, with enthusiasm further heightened after Google (GOOGL.US) made breakthroughs in quantum computing technology last month.

As of the close of the U.S. stock market on Tuesday, Quantum Computing stocks have risen over 1800% in the past 12 months, reaching $17.49. During the same period, Rigetti increased by more than 1500%, D-Wave rose nearly 1000%, and IonQ was up over 300%.

Google's stocks achieved the best monthly performance since May 2023 in December last year. The stock fell 0.4% in after-hours trading on Tuesday.