SemiLEDs Corporation (NASDAQ:LEDS) is one of the fastest-growing semiconductor stocks to buy. The company grew its year-over-year revenue by a whopping 729.8%, making it the fastest-growing semiconductor stock in our list.
On November 28, 2025, the company reported fiscal Q4 and full-year 2025 results. Revenue was $13.2 million in Q4 (down from $17.7 million in Q3), with a GAAP net loss of $1.2 million, or -$0.15 per share. Gross margin was 2% and operating margin was −7%. Cash at the end of the quarter was $2.6 million. For FY2025, revenue jumped to $43 million from $5.2 million in FY2024; GAAP net loss narrowed to $1.1 million from $2.0 million, while full-year gross margin declined to 6% and operating margin improved to −4%.
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Why did revenue explode this year, and why the volatility? The company has said that the surge was driven largely by “buy-sell” purchase orders of equipment that flowed through “Other revenues,” creating concentration risk and quarter-to-quarter swings (one Q2 customer was 87% of revenue). Management also outlined a pivot toward a fabless model to cut idle-capacity costs and focus on higher-margin modules and UV LED products for niche applications, which it believes can improve operating results and cash flow.
Independent trade coverage also highlighted the eight-fold increase in full-year revenue, while noting Q4 margin pressure and a sequential revenue pullback from Q3.
At a glance, SemiLEDs Corporation develops and manufactures LED chips and components for general and specialty lighting (including UV curing, medical/cosmetic, counterfeit detection, horticulture, architectural and entertainment uses), with operations centered in Hsinchu, Taiwan.
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