Amkor Technology (AMKR) Valuation in Focus After Q3 Beat, Softer Guidance and CEO Transition

Amkor Technology (AMKR) is in the spotlight following its third quarter 2025 results. The company topped Wall Street’s revenue and earnings forecasts, which reflects demand in advanced packaging and robust sales in key market segments.

See our latest analysis for Amkor Technology.

After a brisk rally through the past three months, Amkor Technology’s share price is up 34% in the last quarter and 24% year-to-date, reflecting building momentum on the back of record quarterly revenues and recent executive changes. While there was a slight dip after new guidance tempered near-term enthusiasm, the stock’s 18% one-year total shareholder return and 183% gain over five years highlight its strong long-term performance and investors’ confidence in its growth strategy.

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With shares running hot after record results and management guiding for softer growth in the next quarter, investors face a familiar dilemma. Is Amkor’s strong momentum already fully priced in, or does a fresh opportunity remain?

Most Popular Narrative: 24% Overvalued

Analyst consensus sees Amkor Technology’s fair value estimate falling well below the last close, which raises sharp questions about upside. The gap between the latest trading price and the narrative’s valuation suggests the market is pricing in much rosier outcomes than analysts expect today.

Accelerating AI adoption and next-generation devices are driving advanced packaging demand, boosting Amkor's revenue growth, margin expansion, and long-term profitability prospects. Strategic global investments and operational rationalization improve resilience, attract key partners, and optimize margins through enhanced capacity, diversification, and cost structure.

Read the complete narrative.

Want to see the formula Wall Street analysts used to reach that surprisingly cautious fair value? The narrative blends bold growth projections and ambitious margin recovery, but their math is not what most investors might expect. Discover which major financial variables, hidden in plain sight, explain the difference. Click to find out.

Result: Fair Value of $25.88 (OVERVALUED)

Have a read of the narrative in full and understand what's behind the forecasts.

However, persistent margin pressures and execution risks related to Amkor's global expansion could challenge the optimistic growth story if not addressed effectively.

Find out about the key risks to this Amkor Technology narrative.

Another View: Market Ratios Tell a Different Story

While analysts see Amkor as overvalued based on their forecasts, its current price-to-earnings ratio of 25.8x is noticeably lower than the US Semiconductor industry average of 39.8x and the peer average of 39.4x. Moreover, the fair ratio calculated from historical trends sits even higher at 31.1x. This suggests the market might be undervaluing the company by some measures.

So, which view should investors trust? Wall Street’s cautious fair value or the market’s more optimistic multiples? Sometimes valuation depends on which future you believe in.

See what the numbers say about this price — find out in our valuation breakdown.

Build Your Own Amkor Technology Narrative

If you have a different take or want to put the numbers to the test yourself, it only takes a few minutes to craft your own perspective. Do it your way

A great starting point for your Amkor Technology research is our analysis highlighting 3 key rewards and 1 important warning sign that could impact your investment decision.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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