Avoid the stress of overpaying for a stock or missing an opportunity by using the right tools and insights to evaluate ASE Technology Holding Co., Ltd. before investing.

In this article, we go over a few key elements for understanding ASE Technology Holding Co., Ltd.’s stock price such as:

• ASE Technology Holding Co., Ltd.’s current stock price and volume
• Why ASE Technology Holding Co., Ltd.’s stock price changed recently
• Upgrades and downgrades for ASX from analysts
• ASX’s stock price momentum as measured by its relative strength

About ASE Technology Holding Co., Ltd. (ASX)

Before we jump into ASE Technology Holding Co., Ltd.’s stock price, history, target price and what caused it to recently rise, let’s take a look at some background.

ASE Technology Holding Co., Ltd., together with its subsidiaries, provides semiconductor manufacturing services in the United States, Taiwan, rest of Asia, Europe, and internationally. It operates through Packaging, Testing, and EMS. The company offers semiconductor packaging, interconnect materials production, front-end engineering testing, wafer probing, and final testing services, as well as integrated solutions for EMS (electronic manufacturing services) in relation to computing, peripherals, communications, industrial, automotive, and server applications. It also provides turnkey services, such as packaging, testing, and direct shipment of semiconductors to end users; wire bonding, including lead frame and substrate-based packages; advanced packages; heterogeneous integration; and other test-related services. In addition, the company engages in the leasing of properties; development, construction, sale, and management of real estate properties; management of parking lot; leasing of properties for shopping center; and management of commercial complex services and department store trading activities, as well as offers social, marketing and sales, information software, leasing and investing, and after-sales and sales support services. Further, it engages in the substrates production; investment advisory and warehousing management; design and manufacturing of electronic components and new electronic applications; technical advisory; management, training, and consulting of organization and human resources; projection of plastic; manufacture and sale of antennas, RF amplifiers and wave straps, PCBs, and tuners; and research and development activities. ASE Technology Holding Co., Ltd. was founded in 1984 and is based in Kaohsiung, Taiwan.

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ASE Technology Holding Co., Ltd.’s Stock Price as of Market Close

As of May 21, 2026, 4:00 PM, CST, ASE Technology Holding Co., Ltd.’s stock price was $32.640.

ASE Technology Holding Co., Ltd. is up 3% from its previous closing price of $31.690.

During the last market session, ASE Technology Holding Co., Ltd.’s stock traded between $31.870 and $32.940. Currently, there are approximately 136.75 million shares outstanding for ASE Technology Holding Co., Ltd..

ASE Technology Holding Co., Ltd.’s price-earnings (P/E) ratio is currently at 101.1, which is high compared to the Semiconductors & Semiconductor Equipment industry median of 64. The price-earnings ratio gauges market expectation of future performance by relating a stock’s current share price to its earnings per share.

ASE Technology Holding Co., Ltd. Stock Price History

ASE Technology Holding Co., Ltd.’s (ASX) price is currently up 3.92% so far this month.

During the month of May, ASE Technology Holding Co., Ltd.’s stock price has reached a high of $35.710 and a low of $29.885.

Over the last year, ASE Technology Holding Co., Ltd. has hit prices as high as $35.710 and as low as $9.230. Year to date, ASE Technology Holding Co., Ltd.’s stock is up 102.73%.

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What Caused ASE Technology Holding Co., Ltd. Stock’s Price to Rise?

Stock prices are primarily based on seller supply and buyer demand. But have you ever wondered about what other factors affect a stock's price?

One of the most common factors that can drastically impact a stock’s price is analyst upgrades and downgrades. When an analyst changes their opinion of a stock by upgrading or downgrading their rating, it often leads to a sudden stock price adjustment. However, as of May 21, 2026,, no analysts have changed their rating of ASE Technology Holding Co., Ltd.’s stock over the last month.

Additionally, you'll want to evaluate ASE Technology Holding Co., Ltd.’s financial health and valuation. Investors can use AAII's Value Grade, which combines six key valuation metrics like P/E and P/S ratios for a comprehensive analysis to conduct analysis on ASE Technology Holding Co., Ltd.’s valuation and financial health. This approach mitigates the limitations of single-metric evaluations.

ASE Technology Holding Co., Ltd.’s current valuation based on AAII’s Value Grade is a D, which means it is considered to be Expensive.

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Lastly, news and media coverage as well as recent press reports about the company or its industry may cause stock prices to fluctuate. You can check out the most recent news articles about ASE Technology Holding Co., Ltd. (ASX) by visiting AAII Stock Evaluator.

Relative Price Strength of ASE Technology Holding Co., Ltd.

Relative price strength measures a stock's performance against the market, helping investors identify stocks that are outperforming benchmarks.

For AAII’s Momentum Grade, a weighted relative price strength is calculated. Follow this link to learn more about the Momentum Grade.

As of May 21, 2026, ASE Technology Holding Co., Ltd. has a weighted four-quarter relative price strength of 29.52%, which translates to a Momentum Score of 94 and is considered to be Very Strong.

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ASE Technology Holding Co., Ltd. Stock Price: Bottom Line

As of May 21, 2026, ASE Technology Holding Co., Ltd.’s stock price is $32.640, which is up 3% from its previous closing price.

AAII advises against making stock decisions based solely on price or past returns. Instead, consider a variety of metrics, fundamentals, and analytics to evaluate a stock like ASE Technology Holding Co., Ltd. stock prices are influenced by market supply and demand and offer just a snapshot of a company's overall health.

Subscribing to AAII's A+ Investor provides access to comprehensive analytics and insights for confident investing.