Learn more about whether United Microelectronics Corporation is a good stock to buy or sell based on recent news as well as its key financial metrics. Read on to find out how (UMC) grades on certain investment factors and determine whether it meets your investment needs.

Latest United Microelectronics Corporation Stock News

As of September 02, 2026, United Microelectronics Corporation had a $49.9 billion market capitalization, putting it in the 93rd percentile of companies in the Semiconductors & Semiconductor Equipment industry.

Currently, United Microelectronics Corporation’s price-earnings ratio is 96.0. United Microelectronics Corporation’s trailing 12-month revenue is $7.9 billion with a 33.3% profit margin. Year-over-year quarterly sales growth most recently was 7.5%. Analysts expect adjusted earnings to reach $0.918 per share for the current fiscal year. United Microelectronics Corporation currently has a 2.0% dividend yield.



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Grading United Microelectronics Corporation Stock

Before you choose to buy, sell or hold United Microelectronics Corporation stock, you’ll want to analyze how it has been graded. Stock evaluation requires access to huge amounts of data and the knowledge and time to sift through it all, making sense of financial ratios, reading income statements and analyzing recent stock movement. To help individual investors decide whether or not to buy (UMC) stock, AAII created A+ Investor, a robust data suite that condenses data research in an actionable and customizable way that is suitable for investors of all knowledge levels.

AAII’s proprietary stock grades come with A+ Investor. These offer intuitive A‐F grades for each of five key investing factors: value, growth, momentum, earnings revisions and quality. Here, we’ll take a closer look at United Microelectronics Corporation’s stock grades for value, growth and quality. Learn more about A+ Investor here!

United Microelectronics Corporation Stock Value Grade

Buying stocks that are going to go up typically means buying stocks that are undervalued in the first place, although momentum investors may argue that point.

AAII’s A+ Investor Value Grade is derived from a stock’s value score. The value score is the percentile rank of the average of the percentile ranks of the price-to-sales ratio, price-earnings ratio, enterprise-value-to-EBITDA (EV/EBITDA) ratio, shareholder yield, price-to-book-value ratio and price-to-free-cash-flow ratio. The score is variable, meaning it can consider all six ratios or, should any of the six ratios not be valid, the remaining ratios that are valid. To be assigned a Value Score, stocks must have a valid (non-null) ratio and corresponding ranking for at least two of the six valuation ratios.

Stocks with a Value Score from 81 to 100 are considered deep value, those with a score between 61 and 80 are a good value and so on.

United Microelectronics Corporation has a Value Score of 57, which is Average.

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United Microelectronics Corporation Stock Momentum Grade

Momentum grades help uncover stocks experiencing anomalously high rates of return; research finds that stocks with high relative levels of momentum tend to outperform, whereas those with low levels of momentum tend to continue underperforming. Momentum is based on the price change of a stock over a specified period relative to all other stocks.

Typically, AAII looks at the weighted relative strength over the trailing four quarters. The weighted four-quarter relative strength rank is the relative price change for each of the past four quarters. The most recent quarterly price change is given a weight of 40% and each of the three previous quarters are given a weighting of 20%.

United Microelectronics Corporation has a Momentum Score of 94, which is Very Strong.

United Microelectronics Corporation Stock Earnings Estimate Revisions Grade

The Earnings Estimate Revisions Score considers the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, positive surprises beget further positive surprises‐or at least continued sales growth (the exact opposite is generally true, too).

Estimate revisions offer an indication of what analysts are thinking about the short-term prospects of a firm. The Earnings Estimate Revisions Score is based on the statistical significance of a firm’s last two quarterly earnings surprises and the percentage change in its consensus estimate for the current fiscal year over the past month and past three months.

United Microelectronics Corporation has an Earnings Estimate Revisions Score of 80, which is Positive.

Other United Microelectronics Corporation Stock Grades

In addition to Value, Momentum and Estimate Revisions, A+ Investor also provides grades for Growth and Quality.

Growth investing builds on the idea that stocks of companies exhibiting strong, consistent and prolonged growth outperform those of slower—growth companies. AAII measures several dimensions of growth in its Growth Grade, including year—over—year increases in sales and earnings, long(er)—term historical sales and earnings growth rates and analyst‐forecasted long—term earnings growth.

AAII’s A+ Investor Quality Grade comes from the ranking of key metrics. Specifically, the Quality Grade is the percentile rank of the composite return on assets (ROA), return on invested capital (ROIC), gross profit relative to assets, buyback yield, change in total liabilities to assets, accruals, Z double prime bankruptcy risk (Z) score and F—Score.

These 2 key factors, when combined with the above, provide a holistic view into a stock. Further, by joining A+ Investor you can see whether United Microelectronics Corporation’s stock passes any of our 60+ stock screens that have outperformed the market since their creation.

Should I Buy United Microelectronics Corporation Stock?

Overall, United Microelectronics Corporation stock has a Value Grade of C, Momentum Grade of A, and Earnings Estimate Revisions Grade of B.

Whether or not you should buy United Microelectronics Corporation stock will ultimately depend on your individual goals, risk tolerance and allocation. AAII can help you figure these out and identify which investments align with what works best for you.

Lastly, it’s important to evaluate a stock by comparing it against others in the same industry. Review the table below to see how United Microelectronics Corporation stock stands up against its competitors. Click into any of the below tickers to see their stock grades for value, momentum, quality and EPS revisions.

United Microelectronics Corporation (UMC) Competitors

Companies similar to United Microelectronics Corporation in the Semiconductors & Semiconductor Equipment industry.

Company name	Ticker	Market Cap
Astera Labs, Inc.	ALAB	$47.82Bil
ASM International NV	ASMIY	$43.78Bil
STMicroelectronics N.V.	STM	$44.96Bil
Teradyne, Inc.	TER	$52.25Bil
Monolithic Power Systems, Inc.	MPWR	$59.14Bil

United Microelectronics Corporation Stock: Bottom Line

You can use the information about how United Microelectronics Corporation is graded to determine if you should invest in this stock. However, you should decide whether United Microelectronics Corporation’s stock is a buy, sell or hold based on a combination of grades, metrics, ratios and U.S. Securities and Exchange Commission (SEC) reports.

Investors are encouraged to do their own due diligence and research. In this way, individuals can effectively become managers of their own assets—without having to rely on others for financial independence. You can count on AAII for timeless articles on financial planning and stock-picking, unbiased research and actionable analysis.

So, if you’re still on the fence about whether United Microelectronics Corporation is a buy, sell or hold, you can utilize AAII’s expansive and robust screening tools like A+ Investor to help with your decision.

A+ Investor adds to its qualitative teaching by giving you a powerful data suite that helps you whittle down investment decisions, find stocks, exchange-traded funds (ETFs) or mutual funds that meet your needs.