IonQ’s 755% Revenue Explosion and South Korea’s $129 Billion Bet Can’t Stop the Stock’s Slide

IonQ posts record revenue and $3.3B cash, yet shares fall 27% amid sector rut, lowered earnings estimates, and quantum sector uncertainty. Long-term potential remains.

The numbers coming out of IonQ this quarter look like a science experiment gone right: revenue up 755% year over year to $64.7 million, the fourth consecutive record, and a cash fortress worth $3.3 billion. Yet the market is behaving as if none of that matters. On Thursday shares closed at €42.98, down 26.91% over the past 30 days — roughly 28% by some calculations — and a full 39.46% below the October 2025 all-time high of €71.00. Even a year-to-date gain of 7.73% (or about 11% depending on the data provider) offers little comfort to investors watching the daily selloff.

The disconnect stems partly from a sector-wide rut. Speculative growth names have been hammered by persistent inflation, elevated interest rates, and the chilling effect of Microsoft’s Majorana research uncertainty on quantum sentiment. June alone wiped 28.8% from IonQ’s share price, while rival Quantum Computing Inc. lost 25.9%.

But while the stock chart looks sickly, the government order book is filling up. South Korea has unveiled its “Sixth Basic Plan,” earmarking roughly $129 billion for state research and development through 2030. Quantum computing ranks among the top 55 priority sectors, alongside artificial intelligence and semiconductors. IonQ already supplies quantum hardware to Korean research institutions and maintains close ties with the country’s telecom industry, positioning it as a direct beneficiary once Seoul allocates specific project budgets. The plan mirrors Washington’s own push, treating quantum technology as a matter of national security — a trend that creates predictable, long-term demand for the companies building the hardware.

Against that backdrop, the analyst community has turned cautious. Zacks, which this week compared IonQ with Quantum Computing Inc., notes that consensus earnings estimates for both 2026 and 2027 have been revised downward repeatedly over the past two months. The expected loss per share keeps widening even as the top line explodes. At Quantum Computing, by contrast, estimates have been moving higher.

Technical indicators reinforce the bearish short-term view. The 50-day moving average stands at €47.19, 8.91% above the current price, signaling fading momentum. The 14-day relative strength index sits at 41.3, pointing to persistent but not yet extreme selling pressure. The 200-day moving average continues to trend higher, offering a sliver of long-term hope.

The one area where IonQ remains unambiguously strong is its balance sheet. As of December 31, 2025, the company held cash and investments worth $3.3 billion — a war chest that gives management ample runway to fund expansion without tapping equity markets anytime soon. Zacks sums up the paradox succinctly: IonQ is the long-term market leader in commercial quantum computing, but weaker earnings estimates and a damaged chart could cap any near-term upside. For investors, that means owning the dominant player in a transformational industry — and watching its stock get battered anyway.