nLIGHT (LASR) stock soared 18.66% in after-hours trading on Thursday following the release of its impressive second-quarter earnings report and optimistic third-quarter guidance. The laser manufacturer significantly outperformed analysts' expectations, demonstrating robust growth and improved profitability.

For Q2 2025, nLIGHT reported adjusted earnings per share of $0.06, surpassing the analyst consensus estimate of -$0.09 by a remarkable 166.67%. This represents a substantial improvement from the -$0.10 per share loss reported in the same period last year. The company's revenue for the quarter reached $61.735 million, beating the analyst estimate of $55.242 million by 11.75% and marking a 22.22% increase from the $50.511 million reported a year ago. Additionally, nLIGHT's Q2 Adjusted EBITDA of $5.55 million significantly exceeded the expected -$1.52 million.

Adding to the positive sentiment, nLIGHT provided an encouraging outlook for the third quarter. The company projects Q3 revenue between $62 million and $67 million, with an expected gross margin range of 24% to 30%. This forward-looking guidance, coupled with the strong Q2 performance, appears to have fueled investor optimism, driving the substantial after-hours stock price increase.