Excelliance MosROCO:5299 63 PB Ratio is 1.90 as of Jul. 12, 2026, which is 42% below its 10-year median of 3.27. GuruFocus rates ROCO:5299 with a GF Score™ of 63/100 and a GF Value™ of NT$73.89 (Significantly Overvalued). The stock has 9 warning signs investors should review. Among 997 Semiconductors companies, Excelliance Mos ranks better than 71.82% on this metric.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-07-12), Excelliance Mos's share price is NT$118.00. Excelliance Mos's Book Value per Share for the quarter that ended in Mar. 2026 was NT$62.19. Hence, Excelliance Mos's PB Ratio of today is 1.90.
Warning Sign:
Excelliance Mos Corp stock PB Ratio (=1.9) is close to 2-year high of 2.07.
The historical rank and industry rank for Excelliance Mos's PB Ratio or its related term are showing as below:
ROCO:5299'
s PB Ratio Range Over the Past 10 Years
Min: 1.1 Med: 3.27 Max: 6.71
Current: 1.9
During the past 13 years, Excelliance Mos's highest PB Ratio was 6.71. The lowest was 1.10. And the median was 3.27.
ROCO:5299's PB Ratio is ranked better than 71.82% of 997
companies
in the Semiconductors industry
Industry Median: 3.66
vs ROCO:5299: 1.90
During the past 12 months, Excelliance Mos's average Book Value Per Share Growth Rate was 2.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 8.40% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 12.90% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 18.70% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Excelliance Mos was 27.80% per year. The lowest was -1.60% per year. And the median was 11.30% per year.
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Excelliance Mos PB Ratio Related Terms
Excelliance Mos PB Ratio Historical Data
* Premium members only.
The historical data trend for Excelliance Mos's PB Ratio can be seen below:
* 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.
For the Semiconductors subindustry, Excelliance Mos's PB Ratio, along with its competitors' market caps and PB Ratio 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.
Excelliance Mos PB Ratio vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Excelliance Mos's PB Ratio distribution charts can be found below:
* The bar in red indicates where Excelliance Mos's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
Excelliance Mos's PB Ratio for today is calculated as follows:
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Excelliance Mos (ROCO:5299) has a PB Ratio of 1.90 as of Jul. 12, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Excelliance Mos and its competitors. This is 42% below median its historical median of 3.27. Over the past decade, Excelliance Mos' PB Ratio has ranged from 1.10 to 6.71. According to the industry distribution chart, Excelliance Mos ranks #281 out of 997 companies in the Semiconductors industry, placing it in the top 28.2%.
Is Excelliance Mos' PB Ratio too high?
Excelliance Mos' current PB Ratio of 1.90 is 42% below median its 10-year median of 3.27. Over the past 10 years, this metric has ranged from a low of 1.10 to a high of 6.71. The Semiconductors industry median PB Ratio is 3.66. Excelliance Mos' value of 1.90 is 48.1% below this industry median. Based on the distribution chart, Excelliance Mos ranks #281 out of 997 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Excelliance Mos has a GF Score™ of 63/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Excelliance Mos' PB Ratio compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Excelliance Mos ranks #281 out of 997 companies for PB Ratio. This puts Excelliance Mos in the upper half of its industry. The industry median PB Ratio is 3.66. Excelliance Mos' value of 1.90 is 48.1% below this benchmark. Historically, Excelliance Mos' own PB Ratio has ranged from 1.10 to 6.71 over the past decade. While the company's 10-year median is 3.27 vs. the industry median of 3.66, Excelliance Mos has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for a Semiconductors company?
The median PB Ratio among Semiconductors companies is 3.66, based on 997 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Excelliance Mos's current PB Ratio of 1.90 is 48.1% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Excelliance Mos and its competitors. For the Semiconductors industry, the median PB Ratio is 3.66 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Excelliance Mos's current PB Ratio is 1.90, which is 42% below median its own 10-year median of 3.27. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Excelliance Mos stock overvalued right now?
Based on GuruFocus' analysis, Excelliance Mos (ROCO:5299) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$73.89, compared to a current price of NT$118.00 — trading 59.7% above its estimated fair value. The current PB Ratio is 1.90, which is 42% below median its 10-year median of 3.27 and 48.1% below the Semiconductors industry median of 3.66. Excelliance Mos' overall GF Score™ is 63/100 with 9 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Excelliance Mos (ROCO:5299), the current PB Ratio is 1.90 as of Jul. 12, 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 Excelliance Mos (ROCO:5299) Overvalued in 2026?
Based on GuruFocus' analysis, Excelliance Mos stock appears to be overvalued.
The current stock price of NT$118.00 is trading 59.7% above its estimated GF Value™ of NT$73.89.
GuruFocus considers Excelliance Mos to be Significantly Overvalued.
Key valuation signals for ROCO:5299:
PB Ratio: 1.90 (42% below median its 10-year median of 3.27)
GF Value™: NT$73.89 vs. price of NT$118.00 (59.7% above fair value)
Industry Position: 48.1% below the Semiconductors median (#281 of 997)
No single metric tells the full story. See the ROCO:5299 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Excelliance Mos Corp is a power device and IC design company specializing in power semiconductor process development, high-efficiency power devices, integrated circuits, and system design, empowered by its vertically integrated capabilities. The company's product portfolio mainly includes Power MOSFETs, AC/DC integrated circuits, and AC/DC controllers. These products are mainly used in laptops, desktops, LCD TVs, monitors, digital cameras, cell phones, and other related products. Geographically, the company generates maximum revenue from Taiwan, and the rest from China and other markets.
63GF Score
Get the complete analysis for ROCO:5299
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