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Why ASE Technology (ASX) Stock Is Down Today

ASE Technology Holding (ASX) is down 4.5% today. Here is some analysis on what might have caused this price movement.

Analysis: The most likely explanation is not weak operating results, but a mix of profit-taking and renewed pressure across semiconductor shares. This could be because investors are focusing on ASE Technology’s very heavy spending plans and broader worries about whether the AI-driven chip buildout will generate returns quickly enough.

Details:

  • ASE Technology’s second-quarter 2026 results were strong, with net income rising to NT$21.1 billion and basic EPS reaching NT$4.80 per share, while consolidated gross margin improved to 21.0%.
  • Quarterly revenue also showed solid momentum, with second-quarter net revenue of NT$191.1 billion, up 26.7% from a year earlier and 10.0% from the prior quarter.
  • Even with that growth, capital spending remains very large. The company said equipment capex in the second quarter totaled about US$1.7 billion, and management had already raised its 2026 capex budget to roughly US$8.5 billion to expand advanced packaging and testing capacity.
  • Chip stocks have recently been under pressure more broadly as investors reassess AI spending, valuation, and the pace of payback across the semiconductor supply chain.
  • Sources:

    SEC, PR Newswire, Investing.com

    Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

    $ASX Insider Trading Activity

    ASX Insider Trades

    $ASX insiders have traded $ASX stock on the open market 38 times in the past 6 months. Of those trades, 0 have been purchases and 38 have been sales.

    Here’s a breakdown of recent trading of $ASX stock by insiders over the last 6 months:

    • TIEN-SZU CHEN (GM, ASE Inc. Chung-Li Branch) has made 0 purchases and 4 sales selling 530,000 shares for an estimated $247,136,997.
    • JEFFREY CHEN has made 0 purchases and 23 sales selling 200,000 shares for an estimated $96,048,970.
    • DU-TSUEN UANG (Chief Administration Officer) has made 0 purchases and 11 sales selling 37,000 shares for an estimated $24,305,000.

    To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

    $ASX Hedge Fund Activity

    We have seen 235 institutional investors add shares of $ASX stock to their portfolio, and 147 decrease their positions in their most recent quarter.

    Here are some of the largest recent moves:

    To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

    This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.

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    ASE Technology Holding Co., Ltd. (ASX)