Taiwan Semiconductor Manufacturing Company’s new 10 year agreement with Amkor Technology (AMKR) to expand advanced packaging in Arizona has refocused attention on how the stock fits into the U.S. semiconductor supply chain story.

The TSMC partnership comes after a sharp swing in Amkor Technology’s share price, with the stock down 8.06% over the past day and 12.98% over the past week, but still showing a 90 day share price return of 77.10% and a 1 year total shareholder return of 275.39%. This indicates that momentum has been strong even with recent volatility as investors reassess growth expectations and risk around advanced packaging demand.

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With Amkor Technology’s shares near record levels, a 36% intrinsic value discount estimate and analyst targets close to the current price create an important tension: is there still an opportunity here, or is future growth already priced in?

Most Popular Narrative: 12.5% Undervalued

With Amkor Technology last closing at $78.72 against a widely followed fair value of $90, the current setup reflects a valuation gap built on specific growth and margin assumptions rather than sentiment alone.

While analyst consensus expects efficiency gains from expanded U.S. and global capacity, these projections likely understate the absolute scale of Amkor's manufacturing lead. Rapid ramp-ups in regions like Vietnam and Arizona, paired with deepening ties to ecosystem leaders (including both top fabless and foundry partners), could make Amkor uniquely dominant in securing new design wins and contracts, driving multi-year outperformance in revenue and earnings growth.

Want to see what financial engine sits behind that optimism? The narrative leans on faster revenue compounding, fatter margins, and a richer future earnings multiple than many investors might assume.

Result: Fair Value of $90 (UNDERVALUED)

However, there is still real execution risk for Amkor Technology if large customers shift volume elsewhere, or if the new Arizona and Vietnam capacity takes longer to fill profitably.

Next Steps

If the mix of optimism and concern around Amkor Technology leaves you split, move quickly to review the full picture and weigh the 4 key rewards and 1 important warning sign.

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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.