YJN Co (ROCO:3191) GF Score: 57/100 (As of Jul. 16, 2026) — Near Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
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
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.

ROCO:3191 YJN Co Ltd ROCO:3191
57 GF Score
Price NT$18.60
GF Value NT$15.23
Valuation Modestly Overvalued
! 4 Warning Signs
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What is YJN Co GF Score?

YJN Co ROCO:3191 +0.54% 57 GF Score is 57 as of Jul. 16, 2026, which is 8% above its 10-year median of 53.00. GuruFocus rates ROCO:3191 with a GF Score™ of 57/100 and a GF Value™ of NT$15.23 (Modestly Overvalued). The stock has 4 warning signs investors should review.

YJN Co has the GF Score of 57, which implies that the company might have Poor future performance potential.

The GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation, which has been found to be closely correlated to the long-term performances of stocks by backtesting from 2006 to 2021. The stocks with a higher GF Score generally generate higher returns than those with lower GF Scores. Therefore, when picking stocks, investors should invest in companies with high GF Scores. The GF Score ranges from 0 to 100, with 100 as the highest rank.

GF Score takes following five key aspects into consideration:

1. Financial Strength : 5/10
2. Profitability Rank : 2/10
3. Growth Rank : 1/10
4. GF Value Rank : 6/10
5. Momentum Rank : 7/10

Each one of these components is ranked and the ranks also have positive correlation with the long term performances of stocks. The GF score is calculated using the five key aspects of analysis. Through backtesting, we know that each of these key aspects has a different impact on the stock price performance. Thus, they are weighted differently when calculating the total score. The Profitability Rank and the Growth Rank are weighted fully, while other parameters have less weight.

Based on research and backtesting result, GuruFocus believes YJN Co might have Poor future performance potential.

Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.

YJN Co  (ROCO:3191) GF Score Explanation

Based on the historical long-term performances among five valuation aspects, the GF Score is found to be closely correlated to the long-term performances of stocks. It ranges from 0 to 100, with 100 as the highest. GuruFocus divided GF Score into following 5 categories:

GF Score Performance Potential and All-in-One Screener Examples (1)
91 - 100Highest outperformance potential
81 - 90Good outperformance potential
71 - 80Likely to have average performance
51 - 70Poor future performance potential
0 - 50Worst future performance potential, or not enough data

(1) These are some simple examples. You can access our GF Score filter under All-in-One Screener’s Fundamental tab.

YJN Co GF Score Related Terms

ROCO:3191 vs APH, GLW: GF Score Comparison

For the Electronic Components subindustry, YJN Co's GF Score, along with its competitors' market caps and GF Score 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.

YJN Co GF Score vs Hardware Industry

For the Hardware industry and Technology sector, YJN Co's GF Score distribution charts can be found below:

* The bar in red indicates where YJN Co's GF Score falls into.


ROCO:3191
57GF Score
YJN Co Ltd ROCO:3191
GF Score is just one metric. See GF Score™, valuation, warning signs, and more.
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Frequently Asked Questions Learn more about GF Score →
What does a GF Score of 57 mean?
YJN Co (ROCO:3191) has a GF Score of 57 as of Jul. 16, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on YJN Co and its competitors. This is near median its historical median of 53.00. Over the past decade, YJN Co's GF Score has ranged from 14.00 to 69.00.
Is YJN Co's GF Score too high?
YJN Co's current GF Score of 57 is near median its 10-year median of 53.00. Over the past 10 years, this metric has ranged from a low of 14.00 to a high of 69.00. Overall, YJN Co has a GF Score™ of 57/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does YJN Co's GF Score compare to APH and GLW?
YJN Co's GF Score of 57 can be compared against companies in the Hardware industry. Historically, YJN Co's own GF Score has ranged from 14.00 to 69.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Score for a Hardware company?
A good GF Score depends on the Hardware industry context. However, GF Score 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 GF Score mean?
A high GF Score can signal that a stock is expensive relative to its fundamentals. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on YJN Co and its competitors. YJN Co's current GF Score is 57, which is near median its own 10-year median of 53.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is YJN Co stock overvalued right now?
Based on GuruFocus' analysis, YJN Co (ROCO:3191) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$15.23, compared to a current price of NT$18.60 — trading 22.1% above its estimated fair value. The current GF Score is 57, which is near median its 10-year median of 53.00. YJN Co's overall GF Score™ is 57/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Score calculated?
GF Score is calculated from a company's financial statements. For YJN Co (ROCO:3191), the current GF Score is 57 as of Jul. 16, 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 YJN Co (ROCO:3191) Overvalued in 2026?

Based on GuruFocus' analysis, YJN Co stock appears to be overvalued. The current stock price of NT$18.60 is trading 22.1% above its estimated GF Value™ of NT$15.23. GuruFocus considers YJN Co to be Modestly Overvalued.

Key valuation signals for ROCO:3191:

  • GF Score: 57 (near median its 10-year median of 53.00)
  • GF Value™: NT$15.23 vs. price of NT$18.60 (22.1% above fair value)
  • GF Score™: 57/100 with 4 warning signs

No single metric tells the full story. See the ROCO:3191 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

YJN Co Business Description

Address Sec. 1, Zhonghua Road, 6th Floor- 8th, No. 7, Zhongzheng District, Taipei, TWN, 10043
YJN Co Ltd is a Taiwan-based company engaged in the production and sales of electronic components and electronic materials, as well as import and export trade. The company operates in single segment which is Plastic electronics segment.
57GF Score

Get the complete analysis for ROCO:3191

GF Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$18.60
Price
NT$15.23
GF Value