Quantum Stock Surges: IonQ's Market Cap Increases by 1.7 Trillion Won Overnight

Quantum computing company IONQ Inc. (IONQ) closed at $50.80 on the New York Stock Exchange on the 16th, up 6.85%. Heavy trading drove its market capitalization up by about $1.3 billion (roughly KRW 1.7 trillion) in a single day, bringing total market value to approximately $18 billion (about KRW 24 trillion).

In October 2025, IonQ completed a $2.0 billion equity and warrant offering to a single institutional investor, securing substantial cash reserves . In November, it was the only quantum computing company included in the 2025 Deloitte Technology Fast 500, recognized for nearly 20-fold revenue growth over the past three years. In the third quarter of 2025, revenue rose 222% year-over-year, surpassing its own guidance and fueling further growth expectations .

Headquartered in Maryland, IonQ develops ion-trap quantum computers and delivers quantum computing services through Amazon Web Services and other leading cloud platforms . The company’s roadmap targets a commercial quantum computer with over two million qubits by 2030 and the establishment of a full ‘quantum internet’ infrastructure, encompassing quantum networking and security .