Applied Optoelectronics, Inc. Common StockAAOI
Closing prices as of Oct 5, 2026Updated once daily after the US close — not a live quote.

$122.00

+13.00% past month

Notable price movement

  • Oct 5, 2026

    $121.57+5.17%

    Applied Optoelectronics rose 5.17% while comparable semiconductor companies fell 1.31% on average, with all 5 of 5 lower . The move was therefore not shared by the cohort. Pr Newswire carried the company's announcement that it had completed its previously announced at-the-market offering .

  • Oct 2, 2026

    $115.59+7.71%

  • Oct 1, 2026

    $107.32+8.12%

    Comparable semiconductor companies moved +0.60% on average, with 3 of 6 falling and 3 rising . AAOI rose 8.12%, so the move was not shared by the group. Volume was 1.6x its trailing 20-session average .

  • Sep 30, 2026

    $99.26-1.40%

    Comparable semiconductor companies rose 0.79% on average, with 4 of 6 falling, while the company fell 1.40% . The Seeking Alpha piece titled 'The Biggest Test Is Still Ahead' was an opinion article and reported no event .

  • Sep 29, 2026

    $100.67+3.98%

    AAOI rose 3.98% on a day when comparable semiconductor companies gained 1.19% on average, with five of six rising . AOI announced its 1 millionth 1.8GHz amplifier shipped and new broadband and optical product demos at SCTE TechExpo 2026, according to PR Newswire . The stock's gain was larger than the peer average .

  • Sep 28, 2026

    $96.82-4.52%

    AAOI fell 4.52% while comparable semiconductor companies moved -0.40% on average, with 3 of 6 falling . The decline was therefore much larger than the cohort's and was not shared by it .

  • Sep 25, 2026

    $101.40+0.37%

    Comparable semiconductor companies rose 3.11% on average, with all six names in the group higher, while shares of the company rose just 0.37%, a smaller gain than its peers .

Closing prices for AAOI. Summaries describe past sessions only and are not advice, a forecast or a recommendation.

Recent news

Pr Newswire1 day agoApplied Optoelectronics Announces Completion of Previously Announced At the Market Offering24/7 Wall St4 days agoApplied Optoelectronics Is Unstoppable: Up 8% Today and 231% This Year, Is AAOI Stock Too Hot to Handle Now?Seeking Alpha6 days agoApplied Optoelectronics: The Biggest Test Is Still AheadThe Motley FoolAug 24, 2026Why Applied Optoelectronics Stock Dived by Almost 14% on MondayYahoo FinanceAug 15, 2026Applied Optoelectronics (AAOI) Expected to Announce Business Updates Next WeekGlobenewswireAug 7, 2026Applied Optoelectronics Announces Equity Grants To Employees Under Inducement Plan

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Prices and financial data are historical and provided for research only. Not investment advice.