Applied Optoelectronics, Inc. (AAOI:NASDAQ) closed at $67.31 on October 22, 2026, down 12.95% on the day. The stock trades 71.2% below its 52-week high of $233.67 and 263.8% above its 52-week low of $18.50. Over the past year, it gained 157.9%. Applied Optoelectronics, Inc. is part of the Technology sector (Semiconductors).
In 252 trading sessions since October 21, 2025, AAOI closed higher on 126 days (50%). Its best day was February 27, 2026 (+56.88%) and its worst was June 9, 2026 (-17.17%). The stock moved 10% or more in a single session 61 times. It opened at least 5% above the previous day's high 6 times.
Applied Optoelectronics, Inc. designs, manufactures, and sells fiber-optic networking products primarily for Internet data center, cable television (CATV), and fiber-to-the-home (FTTH) networking end-markets. It offers optical modules, lasers, transmitters and transceivers, and turn-key equipment, as well as headend, node, and distribution equipment. The company sells its products to Internet data center operators, CATV and telecommunications equipment manufacturers, and Internet service providers through its direct and indirect sales channels worldwide. Applied Optoelectronics, Inc. was founded in 1997 and is headquartered in Sugar Land, Texas.
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