Lee Chang Yung Technology (TPE:4989) 3-1 Month Momentum %: -44.23% (As of Sep. 01, 2026)

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Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

TPE:4989 Lee Chang Yung Technology Corp TPE:4989
55 GF Score
Price NT$64.70
GF Value NT$23.65
Valuation Significantly Overvalued
! 5 Warning Signs
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What is Lee Chang Yung Technology 3-1 Month Momentum %?

Lee Chang Yung Technology TPE:4989 -5.13% 55 3-1 Month Momentum % is -44.23% as of Sep. 01, 2026. GuruFocus rates TPE:4989 with a GF Score™ of 55/100 and a GF Value™ of NT$23.65 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 2,505 Metals & Mining companies, Lee Chang Yung Technology ranks worse than 91.26% on this metric.

3-1 Month Momentum % is the total return of the stock from 3-month ago to 1-month ago. As of today (2026-09-01), Lee Chang Yung Technology's 3-1 Month Momentum % is -44.23%.

The industry rank for Lee Chang Yung Technology's 3-1 Month Momentum % or its related term are showing as below:

TPE:4989's 3-1 Month Momentum % is ranked worse than
91.26% of 2505 companies
in the Metals & Mining industry
Industry Median: -16.28 vs TPE:4989: -44.23

Lee Chang Yung Technology  (TPE:4989) 3-1 Month Momentum % Explanation

Momentum investing is a trading strategy in which investors buy securities that are rising and sell before the prices start to go back down. The 3-1 Month Momentum % measures the total return to a stock over the past three months, but ignores the previous month.

The reason why the most recent month’s return dropped related to the short-term reversal effect associated with momentum. There is an academic finding that short-term momentum actually has a reversal effect, whereby the previous winners (measured over the past months) do poorly the next month, while the previous losers do well the next month. In order to eliminate the short-term reversal effect, the previous month return was not included in this calculation.


Lee Chang Yung Technology 3-1 Month Momentum % Related Terms


TPE:4989 vs SCCO, FCX: 3-1 Month Momentum % Comparison

For the Copper subindustry, Lee Chang Yung Technology's 3-1 Month Momentum %, along with its competitors' market caps and 3-1 Month Momentum % data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Lee Chang Yung Technology 3-1 Month Momentum % vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Lee Chang Yung Technology's 3-1 Month Momentum % distribution charts can be found below:

* The bar in red indicates where Lee Chang Yung Technology's 3-1 Month Momentum % falls into.


TPE:4989
55GF Score
Lee Chang Yung Technology Corp TPE:4989
3-1 Month Momentum % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Lee Chang Yung Technology  (TPE:4989) 3-1 Month Momentum % Calculation

3-1 Month Momentum % is calculated as following:

3-1 Month Momentum %=( Price 1-month ago / Price 3-month ago - 1 ) * 100 %

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about 3-1 Month Momentum % →
What does a 3-1 Month Momentum % of -44.23% mean?
Lee Chang Yung Technology (TPE:4989) has a 3-1 Month Momentum % of -44.23% as of Sep. 01, 2026. 3-1 Month Momentum measures the total return of the stock from 3-month ago to 1-month ago. View historical data on Lee Chang Yung Technology and its competitors. According to the industry distribution chart, Lee Chang Yung Technology ranks #2286 out of 2505 companies in the Metals & Mining industry, placing it in the top 91.3%.
Is Lee Chang Yung Technology's 3-1 Month Momentum % too high?
Lee Chang Yung Technology's current 3-1 Month Momentum % is -44.23%. Based on the distribution chart, Lee Chang Yung Technology ranks #2286 out of 2505 companies in the Metals & Mining industry, which is in the bottom quartile relative to peers. Overall, Lee Chang Yung Technology has a GF Score™ of 55/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Lee Chang Yung Technology's 3-1 Month Momentum % compare to SCCO and FCX?
According to the Metals & Mining industry distribution chart, Lee Chang Yung Technology ranks #2286 out of 2505 companies for 3-1 Month Momentum %. This places Lee Chang Yung Technology in the lower half of its industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-1 Month Momentum % for a Metals & Mining company?
A good 3-1 Month Momentum % depends on the Metals & Mining industry context. However, 3-1 Month Momentum % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high 3-1 Month Momentum % mean?
A high 3-1 Month Momentum % can signal that a stock is expensive relative to its fundamentals. 3-1 Month Momentum measures the total return of the stock from 3-month ago to 1-month ago. View historical data on Lee Chang Yung Technology and its competitors. Lee Chang Yung Technology's current 3-1 Month Momentum % is -44.23%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Lee Chang Yung Technology stock overvalued right now?
Based on GuruFocus' analysis, Lee Chang Yung Technology (TPE:4989) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$23.65, compared to a current price of NT$64.70 — trading 173.6% above its estimated fair value. The current 3-1 Month Momentum % is -44.23%. Lee Chang Yung Technology's overall GF Score™ is 55/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-1 Month Momentum % calculated?
3-1 Month Momentum % is calculated from a company's financial statements. For Lee Chang Yung Technology (TPE:4989), the current 3-1 Month Momentum % is -44.23% as of Sep. 01, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Lee Chang Yung Technology (TPE:4989) Overvalued in 2026?

Based on GuruFocus' analysis, Lee Chang Yung Technology stock appears to be overvalued. The current stock price of NT$64.70 is trading 173.6% above its estimated GF Value™ of NT$23.65. GuruFocus considers Lee Chang Yung Technology to be Significantly Overvalued.

Key valuation signals for TPE:4989:

  • 3-1 Month Momentum %: -44.23%
  • GF Value™: NT$23.65 vs. price of NT$64.70 (173.6% above fair value)
  • GF Score™: 55/100 with 5 warning signs

No single metric tells the full story. See the TPE:4989 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Lee Chang Yung Technology Business Description

Address Bade Road, 5th Floor, No. 83, Section 4, Songshan District, Taipei City, TWN
Lee Chang Yung Technology Corp produces, manufactures, and sells electrolytic copper foil, an upstream material for printed circuit boards. The Group currently sells a single product, copper foil.
55GF Score

Get the complete analysis for TPE:4989

3-1 Month Momentum % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$64.70
Price
NT$23.65
GF Value