A10 Networks Inc. (ATEN) shares plummeted 7.86% in post-market trading following the release of the company's first-quarter 2026 financial results. The secure application services provider reported quarterly figures that surpassed analyst expectations but saw its stock decline sharply in the after-hours session.

The company reported Q1 revenue of $75 million, beating the consensus estimate of $72.6 million. Adjusted earnings per share came in at $0.24, exceeding the expected $0.23, while adjusted EBITDA reached $22.5 million against an estimate of $21.5 million. Despite these beats, the company reiterated its full-year 2026 guidance initially provided in February, projecting revenue growth of 10-12% and EPS growth of 12-14% year-over-year.

Market reaction suggests investors may have been concerned about valuation levels, with the stock recently trading at 26 times next 12-month earnings compared to a P/E of 19 three months ago. Additionally, Wall Street's median 12-month price target of $25.00 sits approximately 9.7% below the stock's closing price prior to the earnings release, potentially contributing to the post-market selloff despite the quarterly performance exceeding expectations.