Amkor Technology Stock Surges 46%, With A 8-Day Winning Spree
Amkor Technology (AMKR) stock hit day 8 of a continuous streak of days with gains, with cumulative gains over this period amounting to a 46% return. The company has gained about $2.2 Bil in value over the last 8 days, with its current market capitalization at about $7.0 Bil. The stock remains 73.4% above its value at the end of 2024. This compares with year-to-date returns of 16.5% for the S&P 500.
Amkor Technology’s recent streak was driven by Intel’s pivotal outsourcing of high-end AI chip packaging, a strategic partnership with Nvidia for advanced packaging, and robust Q3 earnings. This solidified the company’s crucial role in the booming semiconductor and AI sectors.
What is the point? Momentum often precedes conviction. A multi-day win streak can signal growing investor confidence or spark follow-on buying. Tracking such trends can help you ride the strength, or prepare for a well-timed entry if momentum fades. Our take: There are a few things to fear in AMKR stock given its overall Weak operating performance and financial condition. This isn’t appropriately reflected in the stock’s Moderate valuation which is why we think it is Unattractive (see Buy or Sell AMKR).
For quick background, AMKR provides outsourced semiconductor packaging and testing services globally, specializing in flip chip-scale package products for smartphones, tablets, and other mobile consumer electronics.
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Comparing AMKR Stock Returns With The S&P 500
The following table summarizes the return for AMKR stock vs. the S&P 500 index over different periods, including the current streak:
| Return Period | AMKR | S&P 500 |
|---|---|---|
| 1D | 8.1% | 0.3% |
| 8D (Current Streak) | 45.8% | 4.8% |
| 1M (21D) | 16.3% | -0.0% |
| 3M (63D) | 81.2% | 5.3% |
| YTD 2025 | 73.4% | 16.5% |
| 2024 | -20.8% | 23.3% |
| 2023 | 40.3% | 24.2% |
| 2022 | -2.3% | -19.4% |
However, big gains can follow sharp reversals – but how has AMKR behaved after prior drops? See AMKR Dip Buyer Analysis to learn more.
Gains and Losses Streaks: S&P 500 Constituents
There are currently 44 S&P constituents with 3 days or more of consecutive gains and 91 constituents with 3 days or more of consecutive losses.
| Consecutive Days | # of Gainers | # of Losers |
|---|---|---|
| 3D | 6 | 64 |
| 4D | 9 | 17 |
| 5D | 8 | 10 |
| 6D | 10 | 0 |
| 7D or more | 11 | 0 |
| Total >=3 D | 44 | 91 |
Key Financials for Amkor Technology (AMKR)
Last 2 Fiscal Years:
| Metric | FY2023 | FY2024 |
|---|---|---|
| Revenues | $6.5 Bil | $6.3 Bil |
| Operating Income | $470.3 Mil | $438.5 Mil |
| Net Income | $359.8 Mil | $354.0 Mil |
Last 2 Fiscal Quarters:
| Metric | 2025 FQ2 | 2025 FQ3 |
|---|---|---|
| Revenues | $1.5 Bil | $2.0 Bil |
| Operating Income | $92.0 Mil | $158.9 Mil |
| Net Income | $54.4 Mil | $126.6 Mil |
While AMKR stock looks attractive given its winning streak, investing in a single stock without detailed, thorough analysis can be risky. The Trefis High Quality (HQ) Portfolio, with a collection of 30 stocks, has a track record of comfortably outperforming its benchmark that includes all 3 — the S&P 500, S&P mid-cap, and Russell 2000 indices. Why is that? As a group, HQ Portfolio stocks provided better returns with less risk versus the benchmark index; less of a roller-coaster ride, as evident in HQ Portfolio performance metrics.