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 w ...