GET DAILY SIGNALSAmkor Technology (AMKR) Stock Falls -27.6% in 30 Days: Key Factors and Outlook
Key Takeaways
- Amkor Technology shares have fallen roughly 27.6% over the last 30 days, sliding from a $54.59 close on September 22, 2026, to a most recent trading price near $39.53.
- The decline extends a longer drawdown: the stock is down about 39% over the trailing three-month period from the mid-$60s level seen in late July.
- Near-term pressure has been driven by cautious forward guidance, the migration of system-in-package (SiP) production to Vietnam, and memory supply constraints.
- The longer-term narrative remains anchored to advanced packaging demand, AI data-center growth, and strategic partnerships with TSMC (TSM) and NVIDIA (NVDA).
- Amkor's next quarterly earnings report, expected in late October 2026, and its forward guidance are the primary near-term catalysts for the stock.
- For a deeper look at this ticker, explore Amkor's Price Targets, Earnings, and Forecast pages.
- For automated, data-driven trading ideas across thousands of tickers, explore Trending AI Robots.
Amkor Technology (AMKR) Company Overview and Market Position
Amkor Technology stands as one of the largest providers of outsourced semiconductor assembly and test services. The company handles packaging and testing for a wide range of clients, from fabless designers to integrated device manufacturers and foundries. Its offerings include advanced packaging methods such as flip chip, 2.5D integration, high-density fan-out, wafer-level processing, and memory packaging, alongside more traditional wirebond services.
In the supply chain, AMKR plays a key role as advanced packaging grows essential for AI and high-performance computing. I’m watching this closely because of the stock’s ties to AI data-center demand, partnerships with leaders like TSMC and NVIDIA, and plans for a major U.S. facility in Arizona. I also checked this using Tickeron’s AI Trend Prediction Engine to gauge how the positioning stacks up against sector peers.
Amkor Technology (AMKR) Stock Price Performance: Last 30 Days vs. Quarter
Over the past 30 days, Amkor shares have dropped approximately 27.6%, moving from a September 22, 2026 close of $54.59 down to a recent level near $39.53. The slide featured a steep drop in early-to-mid October, with several down sessions that pushed the price below important short- and medium-term moving averages.
This move fits into a broader downtrend. Over the trailing three months, the stock has lost roughly 39%, falling from the mid-$60s in late July. A brief recovery into late September and early October lifted shares above $56 at one point, but selling pressure returned and drove the price to new multi-month lows.
What Drove AMKR Stock Price in the Last 30 Days
Several elements weighed on the shares in this period. Broader semiconductor weakness from inflation concerns and softer near-term outlooks across the sector added to the pressure. Positioning ahead of the upcoming quarterly results also played a part, with options activity showing a put/call ratio around 2.38 in early October and increased put buying.
Analyst moves contributed to the cautious tone. B. Riley cut its price target to $46 from $65 while keeping a Neutral rating, pointing to an expected in-line third-quarter result but highlighting risks in the communications segment. Insider selling, including a board member’s block sale under a 10b5-1 plan, reinforced defensive sentiment.
What Drove AMKR Stock Performance Over the Last Quarter
The quarterly decline began after the second-quarter earnings report in late July 2026. The company posted record revenue of $1.90 billion, up about 26% year over year, and adjusted EPS of $0.70 that beat estimates. Despite the strong numbers, shares fell because third-quarter revenue guidance missed expectations.
Management linked the softer outlook to the SiP production shift from Korea to Vietnam, which is expected to create timing issues into early 2027, plus memory supply constraints and softer communications demand. These near-term challenges have overshadowed longer-term strengths in advanced packaging, better utilization, and margin expansion. From what I see, the tension between the AI opportunity and these transition costs continues to influence the price action.
AMKR Stock Forecast Drivers: What Investors Should Watch Next
The key near-term catalyst remains the third-quarter earnings report and fourth-quarter guidance due in late October 2026. Focus will center on the computing segment ramp, gross margin trends, and updates on the Vietnam transition and memory issues. Longer term, progress on the Arizona facility, high-density fan-out and 2.5D programs for AI customers, and developments with TSMC and NVIDIA partnerships will matter, along with any macro shifts or rating changes.
Reviewing Automated Trading Approaches
When evaluating data-driven ideas for names like Amkor, I often turn to Tickeron’s platform for additional perspective. The Trending AI Robots section highlights some of the platform’s top-performing automated strategies across various timeframes and approaches. It offers a practical way to review algorithm-driven options without committing to any single signal, which can be useful when assessing exposure in a name facing both near-term pressure and longer-term AI tailwinds.
Disclaimer
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Contributor
Sergey Savastiouk, Ph.D. has a degree in Applied Mathematics from Moscow University and has extensive experience as an entrepreneur, investor, manager, and mathematician. His professional expertise is in applied mathematics, mathematical modeling, system and pattern analysis, and software and hardware system integration. He has served as the CEO of several hi-tech start-up companies and nonprofit organizations, which has given him proven capabilities in business strategy for high-tech start-up companies, market assessment, company formation, team building, product development, marketing, and sales. He has published numerous articles in journals and magazines on related fields. As a retail investor, he spent 15 years developing his proprietary trading and quantitative algorithms (now Tickeron’s A.I.), which brought him significant returns in trading the stock market. His current work and goal in founding Tickeron is to bring professional, sophisticated stock market analysis capabilities to retail investors via an easy-to-use interface.
AMKR in downward trend: 10-day moving average moved below 50-day moving average on October 14, 2026
The 10-day moving average for AMKR crossed bearishly below the 50-day moving average on October 14, 2026. This indicates that the trend has shifted lower and could be considered a sell signal. In 12 of 15 past instances when the 10-day crossed below the 50-day, the stock continued to move higher over the following month. The odds of a continued downward trend are 80%.
Technical Analysis (Indicators)
Bearish Trend Analysis
The Momentum Indicator moved below the 0 level on October 06, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on AMKR as a result. In 70 of 94 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are 74%.
The Moving Average Convergence Divergence Histogram (MACD) for AMKR turned negative on October 09, 2026. This could be a sign that the stock is set to turn lower in the coming weeks. Traders may want to sell the stock or buy put options. Tickeron's A.I.dvisor looked at 50 similar instances when the indicator turned negative. In 36 of the 50 cases the stock turned lower in the days that followed. This puts the odds of success at 72%.
AMKR moved below its 50-day moving average on October 08, 2026 date and that indicates a change from an upward trend to a downward trend.
Following a 3-day decline, the stock is projected to fall further. Considering past instances where AMKR declined for three days, the price rose further in 50 of 62 cases within the following month. The odds of a continued downward trend are 72%.
Bullish Trend Analysis
The RSI Oscillator points to a transition from a downward trend to an upward trend -- in cases where AMKR's RSI Indicator exited the oversold zone, 22 of 28 resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are 79%.
The Stochastic Oscillator shows that the ticker has stayed in the oversold zone for 9 days. The price of this ticker is presumed to bounce back soon, since the longer the ticker stays in the oversold zone, the more promptly an upward trend is expected.
Following a +6.95% 3-day Advance, the price is estimated to grow further. Considering data from situations where AMKR advanced for three days, in 237 of 322 cases, the price rose further within the following month. The odds of a continued upward trend are 74%.
AMKR may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options.
The Aroon Indicator entered an Uptrend today. In 156 of 213 cases where AMKR Aroon's Indicator entered an Uptrend, the price rose further within the following month. The odds of a continued Uptrend are 73%.
Fundamental Analysis (Ratings)
The Tickeron Valuation Rating of 48 (best 1 - 100 worst) indicates that the company is fair valued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: P/B Ratio (2.336) is normal, around the industry mean (7.021). P/E Ratio (19.522) is within average values for comparable stocks, (95.827). Projected Growth (PEG Ratio) (0.180) is also within normal values, averaging (0.801). Dividend Yield (0.008) settles around the average of (0.008) among similar stocks. P/S Ratio (1.548) is also within normal values, averaging (27.897).
The Tickeron Seasonality Score of 50 (best 1 - 100 worst) indicates that the company is fair valued in the industry. The Tickeron Seasonality score describes the variance of predictable price changes around the same period every calendar year. These changes can be tied to a specific month, quarter, holiday or vacation period, as well as a meteorological or growing season.
The Tickeron SMR rating for this company is 62 (best 1 - 100 worst), indicating strong sales and a profitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Price Growth Rating for this company is 65 (best 1 - 100 worst), indicating fairly steady price growth. AMKR’s price grows at a lower rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron PE Growth Rating for this company is 73 (best 1 - 100 worst), pointing to worse than average earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
The Tickeron Profit vs. Risk Rating rating for this company is 76 (best 1 - 100 worst), indicating that the returns do not compensate for the risks. AMKR’s unstable profits reported over time resulted in significant Drawdowns within these last five years. A stable profit reduces stock drawdown and volatility. The average Profit vs. Risk Rating rating for the industry is 71, placing this stock worse than average.
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General Information
a provider of outsourced semiconductor packaging and test services
Industry ElectronicProductionEquipment
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