Aspen Aerogels stock gains 3.65 percent on Q3 guidance

Aspen Aerogels stock gained 3.65 percent to USD 5.68 in after-hours trading on the NYSE on September 23, 2026. The move followed a company update that put Q3 2026 adjusted EBITDA guidance at USD 7 million to USD 15 million, even as management projects a net loss.

Q2 revenue reaches USD 50 million

Aspen Aerogels reported Q2 2026 revenue of USD 49.849 million, compared with USD 37.884 million in Q1 2026. That represents sequential growth of 31.58 percent, while the company still posted a Q2 net loss of USD 23.264 million and diluted EPS of negative USD 0.28.

The filing dated September 15, 2026, identifies ASPN as common stock listed on the New York Stock Exchange, according to the SEC. The same filing covered an investor presentation focused on the company's aerogel platform and operating plans.

Guidance points to an earnings shift

The Q3 outlook marks a sharp change from Q2 adjusted EBITDA of negative USD 6.6 million. The guided range of USD 7 million to USD 15 million would therefore move the metric back into positive territory, while projected net loss stands at USD 6 million to USD 9 million, according to Stock Titan.

The September 15 presentation also cited USD 202 million in last-twelve-month revenue through Q2 2026 and production capacity supporting more than USD 600 million in annual revenue. That capacity figure matters because the current issue is not only sales growth, but the conversion of volume into positive operating earnings.

Analyst target remains below the quote

TipRanks reported on September 15, 2026, that the most recent analyst rating was Sell with a USD 5.00 price target. The target sits below the after-hours quote of USD 5.68, leaving the market to weigh the improved EBITDA outlook against continuing GAAP losses.

Stock remains below its yearly high

Aspen Aerogels had a market capitalization of USD 470,743,933 on September 23, 2026. Its 52-week range was USD 2.30 to USD 9.35, placing the USD 5.68 quote 39.25 percent below the yearly high.