IonQ (NYSE: IONQ) has been one of the most talked-about names in quantum computing, delivering a remarkable 137% return over the past three years, far outpacing the S&P 500’s 72% gain over the same period.

Despite that long-term track record, the stock has struggled over the past year as investors rotate away from high-risk, unprofitable companies toward fast-growing businesses that can demonstrate a clear path to profitability.

The company posted second-quarter 2026 revenue of $80.1 million, representing a stunning 287% increase year-over-year, a figure that would impress even the most skeptical growth investor.

However, a significant portion of that growth was driven by a series of acquisitions the company has made over the past year, rather than purely organic expansion of its core quantum computing business.

IonQ’s management has estimated that organic revenue alone will double for the full calendar year 2026, which provides some reassurance that the underlying business is also growing independently of acquisition activity.

Total sales, including revenue from acquisitions and organic growth combined, are projected to reach $455 million for 2026, which would represent a massive 60% increase over the company’s previous full-year guidance.

That updated guidance came shortly after IonQ completed its acquisition of SkyWater Technology, a chip foundry business, on July 31, raising legitimate questions about how much of the forecast depends on that single deal.

Investors with experience in high-growth tech stocks know that acquisition-fueled revenue expansion can mask underlying weaknesses, particularly when spending is also rising sharply alongside those headline numbers.

On the cost side, IonQ’s financial picture is becoming more challenging, with spending accelerating, losses widening, and gross margins contracting at a time when Wall Street has little tolerance for profitability delays.

This combination of deteriorating margins, growing losses, and heavy acquisition dependence makes the current valuation difficult to justify, even by the standards of an expensive, high-growth technology sector.

For investors considering a position in IonQ, the 287% revenue growth is undeniably eye-catching, but the full picture of rising costs, acquisition reliance, and a premium stock price demands careful scrutiny before committing capital.