Quantum computing stocks were red-hot recently, but Jensen Huang just offered optimistic investors a reality check.

NVIDIA Corp. (NASDAQ:NVDA) has announced its inaugural Quantum Day, set to take place on Mar. 20 during the GTC 2025 event. The announcement comes just days after CEO Jensen Huang stated that practical quantum computing may still be two decades away.

Jensen Huang’s comments at last week’s CES about quantum computing being decades away stirred up discussion within the quantum industry.

Shares of quantum computing company IonQ ( IONQ 5.48%) raced higher this week. The stock was up by 28.5% as of Friday morning, according to data provided by S&P Global Market Intelligence.

Stocks and ETFs tied to quantum computing rose significantly Wednesday after Nvidia and Microsoft highlighted the industry's enormous potential.

Several stocks across the quantum computing industry fell sharply Wednesday after Nvidia CEO Jensen Huang said the technology is likely still years away.

This is what's happening on Wednesday, as quantum computing investors cheer some kind words from Microsoft's strategic missions and technologies chief, Mitra Azizirad, who last night urged quantum investors to get ready, because "we are right on the cusp of seeing quantum computers solve meaningful problems and capture new business value."

Quantum stocks like Rigetti, IonQ and D-Wave Quantum saw steep losses after Nvidia CEO Jensen Huang said quantum computers are decades away.

Therefore, Huang's prediction that quantum computers won't go mainstream for 15 to 30 years sounds reasonable. It took Nvidia about two decades for its gaming and professional vis