Shares of IonQ Inc. (IONQ) tumbled 5.02% in after-hours trading on Wednesday following the release of its mixed second-quarter earnings report and announcement of leadership changes. The quantum computing company posted better-than-expected revenue but a wider-than-anticipated loss, leading to a sell-off despite raised full-year guidance.

IonQ reported Q2 revenue of $20.69 million, surpassing analyst estimates of $17.23 million and representing an 81.83% increase from the same period last year. However, the company's loss per share widened significantly to $0.70, missing the analyst consensus estimate of $0.27 and marking a substantial increase from the $0.18 loss per share reported a year ago.

Despite the mixed results, IonQ raised its full-year 2025 revenue guidance to a range of $82 million to $100 million, up from the previous forecast of $75 million to $95 million. The company also announced leadership changes, with CEO Niccolo de Masi taking on the additional role of board chairman, while former CEO Peter Chapman stepped down as executive chairman and board member. These developments, combined with the earnings miss, appear to have rattled investors, leading to the after-hours decline.