nLIGHT (LASR) shares reached an all time high after fiscal Q4 2025 results showed 71.35% year over year revenue growth and record quarterly sales, with guidance for Q1 2026 indicating revenue between US$70 million and US$76 million.
See our latest analysis for nLIGHT.
That earnings surprise has come after a sharp rerating in the stock, with the latest 1 day share price return of 5.59% and a 90 day share price return of 52.01%. The 1 year total shareholder return is very large and the 3 year total shareholder return is also very large, suggesting strong momentum that investors are now reassessing against current guidance and risks.
If this kind of growth story has your attention, it can be helpful to see what else is moving in related areas using our 36 AI infrastructure stocks
With revenue growing fast but the company still reporting a net loss of US$23.467 million, and the share price already up sharply with some analyst upside implied, should you see nLIGHT as a potential opportunity, or has the market already priced in future growth?
Most Popular Narrative: 15% Undervalued
The most followed narrative places nLIGHT's fair value at $66.75 per share versus the last close of $57.02, framing the recent surge as still short of its modeled potential while putting a spotlight on how much of that gap rests on defense and advanced manufacturing demand.
The rapid growth and expanding pipeline in aerospace and defense, particularly around high-power laser solutions (e.g., HELSI-2 program, DE M-SHORAD, Golden Dome initiative, and increased directed energy orders internationally), is cited as positioning nLIGHT to benefit from rising global defense spending and modernization, supporting multi-year revenue growth. Increasing adoption of advanced laser technologies for automation, smart manufacturing, and additive manufacturing (especially in EV, clean energy, and microfabrication segments) is presented as underpinning long-term demand for nLIGHT's products, providing a potential runway for top-line expansion.
The full narrative describes the revenue path, margin uplift, and future earnings multiple that are modeled to support that fair value estimate, along with a detailed valuation framework based on those projections.
Result: Fair Value of $66.75 (UNDERVALUED)
Have a read of the narrative in full and understand what's behind the forecasts.
However, the story hinges heavily on aerospace and defense, and any disruption to key programs or scaling challenges in amplifier production could quickly test that upbeat valuation narrative.
Find out about the key risks to this nLIGHT narrative.
Another View: Price To Sales Flashes Caution
That 15% undervalued fair value hinges on long term growth and margins, but the current P/S ratio of 12.2x tells a different story. It is far higher than the US Electronic industry at 2.2x, peers at 2.4x, and an estimated fair ratio of 2.1x, which points to meaningful valuation risk if expectations cool.
To see how those sales multiples compare with the underlying numbers, take a closer look at the valuation breakdown: See what the numbers say about this price — find out in our valuation breakdown.
Next Steps
With sentiment clearly mixed between growth potential and valuation risk, it may be useful to review the numbers yourself and decide where you stand using our 2 key rewards and 2 important warning signs
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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.
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