Vanguard International Semiconductor (ROCO:5347) GF Value Rank: 3 (As of Jul. 30, 2026) — 50% Below 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.
Reviewed by: Charlie Tian Charlie Tian
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:5347 Vanguard International Semiconductor Corp ROCO:5347
75 GF Score
Price NT$133.00
GF Value NT$100.17
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Vanguard International Semiconductor GF Value Rank?

Vanguard International Semiconductor ROCO:5347 -9.83% 75 GF Value Rank is 3 as of Jul. 30, 2026, which is 50% below its 10-year median of 6.00. GuruFocus rates ROCO:5347 with a GF Score™ of 75/100 and a GF Value™ of NT$100.17 (Significantly Overvalued). The stock has 7 warning signs investors should review.

Vanguard International Semiconductor has the GF Value Rank of 3.

GF Value Rank evaluates the exclusive GuruFocus valuation and performance of a stock, rated on a scale from 1 to 10. It is determined by the price-to-GF-Value (P/GF Value) ratio, a proprietary metric calculated based on historical multiples along with an adjustment factor based on a company's past returns and growth and future estimates of the business' performance.

GuruFocus found that for valuation, we cannot simply give stocks a better GF Value rank simply because they have a lower P/GF Value ratio. Backtesting shows that over the long term, the two worst-performing groups are the most expensive group (with the highest P/GF Value ratio) and the least expensive group (with the lowest P/GF Value ratio).

We can understand why the most expensive group underperforms. We were initially puzzled by the underperformance of the least expensive group, but we realized there is a reason why some stocks are super cheap. If they look too undervalued, it is often because the businesses behind them are poor quality. The market realized this and gave them low valuations. In a way, the market is efficient.

After multiple backtesting analyses, we granted the stocks in third-cheapest percentile the highest GF Value rank, as they have performed the best over a full market cycle. Stock performance is actually not as sensitive to valuation as it is to growth and profitability. On average, the companies in the 20%-50% valuation groups have similar performances. Therefore, we should avoid the most expensive and the least expensive stocks. We can be more tolerant of valuation.

A higher score indicates a stock with a relatively low valuation and substantial potential for outperformance. Conversely, a lower score often reflects stocks that are either highly overvalued or deeply undervalued, both of which tend to underperform.

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


Vanguard International Semiconductor GF Value Rank Related Terms


ROCO:5347 vs NVDA, AVGO, MU: GF Value Rank Comparison

For the Semiconductors subindustry, Vanguard International Semiconductor's GF Value Rank, along with its competitors' market caps and GF Value Rank 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.


Vanguard International Semiconductor GF Value Rank vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Vanguard International Semiconductor's GF Value Rank distribution charts can be found below:

* The bar in red indicates where Vanguard International Semiconductor's GF Value Rank falls into.


ROCO:5347
75GF Score
Vanguard International Semiconductor Corp ROCO:5347
GF Value Rank is just one metric. See GF Score™, valuation, warning signs, and more.
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Frequently Asked Questions Learn more about GF Value Rank →
What does a GF Value Rank of 3 mean?
Vanguard International Semiconductor (ROCO:5347) has a GF Value Rank of 3 as of Jul. 30, 2026. GF Value Rank is given based on historical multiples along with past returns, growth and future estimates of the business' performance. View historical data on Vanguard International Semiconductor and its competitors. This is 50% below median its historical median of 6.00. Over the past decade, Vanguard International Semiconductor's GF Value Rank has ranged from 2.00 to 10.00.
Is Vanguard International Semiconductor's GF Value Rank too high?
Vanguard International Semiconductor's current GF Value Rank of 3 is 50% below median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 2.00 to a high of 10.00. Overall, Vanguard International Semiconductor has a GF Score™ of 75/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Vanguard International Semiconductor's GF Value Rank compare to NVDA and AVGO?
Vanguard International Semiconductor's GF Value Rank of 3 can be compared against companies in the Semiconductors industry. Historically, Vanguard International Semiconductor's own GF Value Rank has ranged from 2.00 to 10.00 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 Value Rank for a Semiconductors company?
A good GF Value Rank depends on the Semiconductors industry context. However, GF Value Rank 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 Value Rank mean?
A high GF Value Rank can signal that a stock is expensive relative to its fundamentals. GF Value Rank is given based on historical multiples along with past returns, growth and future estimates of the business' performance. View historical data on Vanguard International Semiconductor and its competitors. Vanguard International Semiconductor's current GF Value Rank is 3, which is 50% below median its own 10-year median of 6.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Vanguard International Semiconductor stock overvalued right now?
Based on GuruFocus' analysis, Vanguard International Semiconductor (ROCO:5347) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$100.17, compared to a current price of NT$133.00 — trading 32.8% above its estimated fair value. The current GF Value Rank is 3, which is 50% below median its 10-year median of 6.00. Vanguard International Semiconductor's overall GF Score™ is 75/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Value Rank calculated?
GF Value Rank is calculated from a company's financial statements. For Vanguard International Semiconductor (ROCO:5347), the current GF Value Rank is 3 as of Jul. 30, 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 Vanguard International Semiconductor (ROCO:5347) Overvalued in 2026?

Based on GuruFocus' analysis, Vanguard International Semiconductor stock appears to be overvalued. The current stock price of NT$133.00 is trading 32.8% above its estimated GF Value™ of NT$100.17. GuruFocus considers Vanguard International Semiconductor to be Significantly Overvalued.

Key valuation signals for ROCO:5347:

  • GF Value Rank: 3 (50% below median its 10-year median of 6.00)
  • GF Value™: NT$100.17 vs. price of NT$133.00 (32.8% above fair value)
  • GF Score™: 75/100 with 7 warning signs

No single metric tells the full story. See the ROCO:5347 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Vanguard International Semiconductor Business Description

Address No. 123, Park Road 3, Hsinchu Science Park, Hsinchu, TWN, 300096
Vanguard International Semiconductor Corp is engaged mainly in the manufacturing, selling, packaging, testing and computer-aided design of integrated circuits and other semiconductor devices and the manufacturing of masks. Its services, manufacturing, and technology include BCD/UHV/SOI, Discrete, HV, Sensors/MEMS, eFlash, GaN, Fab Capacity, Intelligent Manufacturing and Management, Services, MPW, Program, Mask Services, Backend Services, Automotive, Design Support. Its Design Services include Libraries & IP Geographically, it derives revenue from Asia and America.
75GF Score

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

NT$133.00
Price
NT$100.17
GF Value