Keystone Technology Co (SHSE:605588) PB Ratio: 3.73 (As of Aug. 29, 2026) — 18% Above 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.

SHSE:605588 Keystone Technology Co Ltd SHSE:605588
70 GF Score
Price ¥46.98
GF Value ¥51.74
Valuation Fairly Valued
! 7 Warning Signs
View Full Analysis

What is Keystone Technology Co PB Ratio?

Keystone Technology Co SHSE:605588 -1.16% 70 PB Ratio is 3.73 as of Aug. 29, 2026, which is 18% above its 10-year median of 3.15. GuruFocus rates SHSE:605588 with a GF Score™ of 70/100 and a GF Value™ of ¥51.74 (Fairly Valued). The stock has 7 warning signs investors should review. Among 1,003 Semiconductors companies, Keystone Technology Co ranks worse than 55.93% 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 (2026-08-29), Keystone Technology Co's share price is ¥46.98. Keystone Technology Co's Book Value per Share for the quarter that ended in Jun. 2026 was ¥12.58. Hence, Keystone Technology Co's PB Ratio of today is 3.73.

The historical rank and industry rank for Keystone Technology Co's PB Ratio or its related term are showing as below:

SHSE:605588' s PB Ratio Range Over the Past 10 Years
Min: 2.04   Med: 3.15   Max: 9.81
Current: 3.73

During the past 9 years, Keystone Technology Co's highest PB Ratio was 9.81. The lowest was 2.04. And the median was 3.15.

SHSE:605588's PB Ratio is ranked worse than
55.93% of 1003 companies
in the Semiconductors industry
Industry Median: 3.25 vs SHSE:605588: 3.73

During the past 12 months, Keystone Technology Co's average Book Value Per Share Growth Rate was -10.30% per year. During the past 3 years, the average Book Value Per Share Growth Rate was -1.40% per year. During the past 5 years, the average Book Value Per Share Growth Rate was 10.90% per year.

During the past 9 years, the highest 3-Year average Book Value Per Share Growth Rate of Keystone Technology Co was 38.60% per year. The lowest was -1.40% per year. And the median was 26.35% per year.

Back to Basics: PB Ratio


Keystone Technology Co  (SHSE:605588) PB Ratio Explanation

Unlike valuation ratios relative to the earning power such as PE Ratio, PE Ratio without NRI, PS Ratio, Price-to-Operating-Cash-Flow , or Price-to-Free-Cash-Flow, the PB Ratio measures the valuation of the stock relative to the underlying asset of the company.

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.


Keystone Technology Co PB Ratio Related Terms


Keystone Technology Co PB Ratio Historical Data

* Premium members only.

The historical data trend for Keystone Technology Co'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.

Keystone Technology Co PB Ratio Chart

Keystone Technology Co Annual Data
Trend Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
PB Ratio
Get a 7-Day Free Trial Premium Member Only 3.09 2.09 3.61 2.88 3.83

Keystone Technology Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
PB Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 3.44 4.46 3.83 3.97 5.34

SHSE:605588 vs AMAT, LRCX, KLAC: PB Ratio Comparison

For the Semiconductor Equipment & Materials subindustry, Keystone Technology Co'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.


Keystone Technology Co PB Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Keystone Technology Co's PB Ratio distribution charts can be found below:

* The bar in red indicates where Keystone Technology Co's PB Ratio falls into.


SHSE:605588
70GF Score
Keystone Technology Co Ltd SHSE:605588
PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Keystone Technology Co PB Ratio Calculation

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.

Keystone Technology Co's PB Ratio for today is calculated as follows:

PB Ratio=Share Price/Book Value per Share (Q: Jun. 2026)
=46.98/12.579
=3.73

* 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.

Frequently Asked Questions Learn more about PB Ratio →
What does a PB Ratio of 3.73 mean?
Keystone Technology Co (SHSE:605588) has a PB Ratio of 3.73 as of Aug. 29, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Keystone Technology Co and its competitors. This is 18% above median its historical median of 3.15. Over the past decade, Keystone Technology Co's PB Ratio has ranged from 2.04 to 9.81. According to the industry distribution chart, Keystone Technology Co ranks #561 out of 1003 companies in the Semiconductors industry, placing it in the top 55.9%.
Is Keystone Technology Co's PB Ratio too high?
Keystone Technology Co's current PB Ratio of 3.73 is 18% above median its 10-year median of 3.15. Over the past 10 years, this metric has ranged from a low of 2.04 to a high of 9.81. The Semiconductors industry median PB Ratio is 3.25. Keystone Technology Co's value of 3.73 is 14.8% above this industry median. Based on the distribution chart, Keystone Technology Co ranks #561 out of 1003 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Keystone Technology Co has a GF Score™ of 70/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Keystone Technology Co's PB Ratio compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Keystone Technology Co ranks #561 out of 1003 companies for PB Ratio. This places Keystone Technology Co in the lower half of its industry. The industry median PB Ratio is 3.25. Keystone Technology Co's value of 3.73 is 14.8% above this benchmark. Historically, Keystone Technology Co's own PB Ratio has ranged from 2.04 to 9.81 over the past decade. While the company's 10-year median is 3.15 vs. the industry median of 3.25, Keystone Technology Co has consistently been above 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 3.25, based on 1,003 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. Keystone Technology Co's current PB Ratio of 3.73 is 14.8% above 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 Keystone Technology Co and its competitors. For the Semiconductors industry, the median PB Ratio is 3.25 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Keystone Technology Co's current PB Ratio is 3.73, which is 18% above median its own 10-year median of 3.15. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Keystone Technology Co stock overvalued right now?
Based on GuruFocus' analysis, Keystone Technology Co (SHSE:605588) is currently considered Fairly Valued. The stock's GF Value™ is ¥51.74, compared to a current price of ¥46.98 — trading 9.2% below its estimated fair value. The current PB Ratio is 3.73, which is 18% above median its 10-year median of 3.15 and 14.8% above the Semiconductors industry median of 3.25. Keystone Technology Co's overall GF Score™ is 70/100 with 7 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 Keystone Technology Co (SHSE:605588), the current PB Ratio is 3.73 as of Aug. 29, 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 Keystone Technology Co (SHSE:605588) Overvalued in 2026?

Based on GuruFocus' analysis, Keystone Technology Co stock appears to be undervalued. The current stock price of ¥46.98 is trading 9.2% below its estimated GF Value™ of ¥51.74. GuruFocus considers Keystone Technology Co to be Fairly Valued.

Key valuation signals for SHSE:605588:

  • PB Ratio: 3.73 (18% above median its 10-year median of 3.15)
  • GF Value™: ¥51.74 vs. price of ¥46.98 (9.2% below fair value)
  • GF Score™: 70/100 with 7 warning signs
  • Industry Position: 14.8% above the Semiconductors median (#561 of 1003)

No single metric tells the full story. See the SHSE:605588 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Keystone Technology Co Business Description

Address No. 60, Hengtong Avenue, Economic and Technological Development Zone, Jiangsu Province, Nanjing, CHN, 210038
Keystone Technology Co Ltd is engaged in the research and development, production and sales of semiconductor display devices and special adhesive materials. The main products of company include polarizers, functional devices, signal connectors, liquid crystal modules and display panel production materials. The terminals are mainly used in LCD TVs, smart phones, tablets, laptops, and wearable devices.
70GF Score

Get the complete analysis for SHSE:605588

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

¥46.98
Price
¥51.74
GF Value