Shares of Quantum Computing Inc. (NASDAQ: QUBT) plummeted 7.45% during intraday trading on Tuesday, extending losses from earlier sessions.

The sharp decline follows the company's release of its fourth-quarter 2025 financial results. The report revealed a significant revenue shortfall, with Quantum Computing posting just $198,000 in revenue for the quarter. This figure fell well below analyst expectations, which ranged from approximately $332,500 to $400,000, and also represented a decline from the $384,000 reported in the previous quarter.

Compounding investor concerns, the company's operating expenses ballooned to $22.1 million, more than doubling from the $10.5 million reported last quarter. Management attributed the surge in costs to substantial growth in personnel and expenses related to recent mergers and acquisitions. The mixed financial picture, featuring a major top-line miss alongside rapidly escalating costs, has raised significant questions about the company's near-term financial trajectory and driven the sell-off.