Donpon Precision (ROCO:3290) Cyclically Adjusted PB Ratio: 2.21 (As of Aug. 13, 2026) — 58% Above Median

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ROCO:3290 Donpon Precision Inc ROCO:3290
67 GF Score
Price NT$57.20
GF Value NT$69.79
Valuation Modestly Undervalued
! 7 Warning Signs
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What is Donpon Precision Cyclically Adjusted PB Ratio?

Donpon Precision ROCO:3290 +2.14% 67 Cyclically Adjusted PB Ratio is 2.21 as of Aug. 13, 2026, which is 58% above its 10-year median of 1.40. GuruFocus rates ROCO:3290 with a GF Score™ of 67/100 and a GF Value™ of NT$69.79 (Modestly Undervalued). The stock has 7 warning signs investors should review. Among 2,229 Industrial Products companies, Donpon Precision ranks better than 52.22% on this metric.

As of today (2026-08-13), Donpon Precision's current share price is NT$57.20. Donpon Precision's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was NT$25.89. Donpon Precision's Cyclically Adjusted PB Ratio for today is 2.21.

The historical rank and industry rank for Donpon Precision's Cyclically Adjusted PB Ratio or its related term are showing as below:

ROCO:3290' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.72   Med: 1.4   Max: 2.72
Current: 2.07

During the past years, Donpon Precision's highest Cyclically Adjusted PB Ratio was 2.72. The lowest was 0.72. And the median was 1.40.

ROCO:3290's Cyclically Adjusted PB Ratio is ranked better than
52.22% of 2229 companies
in the Industrial Products industry
Industry Median: 2.17 vs ROCO:3290: 2.07

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Donpon Precision's adjusted book value per share data for the three months ended in Mar. 2026 was NT$26.103. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is NT$25.89 for the trailing ten years ended in Mar. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Donpon Precision  (ROCO:3290) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


Donpon Precision Cyclically Adjusted PB Ratio Related Terms


Donpon Precision Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Donpon Precision's Cyclically Adjusted 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.

Donpon Precision Cyclically Adjusted PB Ratio Chart

Donpon Precision Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.58 1.30 1.51 1.70 1.64

Donpon Precision Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted 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 1.75 1.55 1.55 1.64 1.58

ROCO:3290 vs VRT, BE: Cyclically Adjusted PB Ratio Comparison

For the Electrical Equipment & Parts subindustry, Donpon Precision's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted 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.


Donpon Precision Cyclically Adjusted PB Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Donpon Precision's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Donpon Precision's Cyclically Adjusted PB Ratio falls into.


ROCO:3290
67GF Score
Donpon Precision Inc ROCO:3290
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Donpon Precision Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

Donpon Precision's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=57.20/25.89
=2.21

* 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.

Donpon Precision's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, Donpon Precision's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book=Book Value per Share/CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=26.103/330.2130*330.2130
=26.103

Current CPI (Mar. 2026) = 330.2130.

Donpon Precision Quarterly Data

Book Value per Share CPI Adj_Book
201606 21.019 241.018 28.798
201609 20.296 241.428 27.760
201612 21.334 241.432 29.179
201703 20.215 243.801 27.380
201706 20.152 244.955 27.166
201709 20.521 246.819 27.455
201712 20.658 246.524 27.671
201803 20.557 249.554 27.201
201806 20.207 251.989 26.480
201809 20.796 252.439 27.203
201812 22.114 251.233 29.066
201903 23.195 254.202 30.131
201906 22.001 256.143 28.363
201909 21.200 256.759 27.265
201912 19.810 256.974 25.456
202003 19.381 258.115 24.795
202006 18.733 257.797 23.995
202009 19.646 260.280 24.925
202012 19.956 260.474 25.299
202103 19.816 264.877 24.704
202106 19.693 271.696 23.934
202109 19.899 274.310 23.954
202112 20.583 278.802 24.378
202203 20.916 287.504 24.023
202206 20.341 296.311 22.668
202209 21.674 296.808 24.113
202212 22.412 296.797 24.935
202303 22.689 301.836 24.822
202306 21.874 305.109 23.674
202309 23.557 307.789 25.273
202312 23.864 306.746 25.690
202403 23.460 312.332 24.803
202406 24.652 314.175 25.910
202409 26.116 315.301 27.351
202412 26.252 315.605 27.467
202503 27.098 319.799 27.980
202506 20.227 322.561 20.707
202509 22.238 324.800 22.609
202512 24.489 324.054 24.954
202603 26.103 330.213 26.103

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

What does a Cyclically Adjusted PB Ratio of 2.21 mean?
Donpon Precision (ROCO:3290) has a Cyclically Adjusted PB Ratio of 2.21 as of Aug. 13, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Donpon Precision and its competitors. This is 58% above median its historical median of 1.40. Over the past decade, Donpon Precision's Cyclically Adjusted PB Ratio has ranged from 0.72 to 2.72. According to the industry distribution chart, Donpon Precision ranks #1065 out of 2229 companies in the Industrial Products industry, placing it in the top 47.8%.
Is Donpon Precision's Cyclically Adjusted PB Ratio too high?
Donpon Precision's current Cyclically Adjusted PB Ratio of 2.21 is 58% above median its 10-year median of 1.40. Over the past 10 years, this metric has ranged from a low of 0.72 to a high of 2.72. The Industrial Products industry median Cyclically Adjusted PB Ratio is 2.17. Donpon Precision's value of 2.21 is 1.8% above this industry median. Based on the distribution chart, Donpon Precision ranks #1065 out of 2229 companies in the Industrial Products industry, which is above the industry midpoint. Overall, Donpon Precision has a GF Score™ of 67/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Donpon Precision's Cyclically Adjusted PB Ratio compare to VRT and BE?
According to the Industrial Products industry distribution chart, Donpon Precision ranks #1065 out of 2229 companies for Cyclically Adjusted PB Ratio. This puts Donpon Precision in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 2.17. Donpon Precision's value of 2.21 is 1.8% above this benchmark. Historically, Donpon Precision's own Cyclically Adjusted PB Ratio has ranged from 0.72 to 2.72 over the past decade. While the company's 10-year median is 1.40 vs. the industry median of 2.17, Donpon Precision 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 Cyclically Adjusted PB Ratio for an Industrial Products company?
The median Cyclically Adjusted PB Ratio among Industrial Products companies is 2.17, based on 2,229 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Donpon Precision's current Cyclically Adjusted PB Ratio of 2.21 is 1.8% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Donpon Precision and its competitors. For the Industrial Products industry, the median Cyclically Adjusted PB Ratio is 2.17 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Donpon Precision's current Cyclically Adjusted PB Ratio is 2.21, which is 58% above median its own 10-year median of 1.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Donpon Precision stock overvalued right now?
Based on GuruFocus' analysis, Donpon Precision (ROCO:3290) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$69.79, compared to a current price of NT$57.20 — trading 18% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 2.21, which is 58% above median its 10-year median of 1.40 and 1.8% above the Industrial Products industry median of 2.17. Donpon Precision's overall GF Score™ is 67/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Donpon Precision (ROCO:3290), the current Cyclically Adjusted PB Ratio is 2.21 as of Aug. 13, 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 Donpon Precision (ROCO:3290) Overvalued in 2026?

Based on GuruFocus' analysis, Donpon Precision stock appears to be undervalued. The current stock price of NT$57.20 is trading 18% below its estimated GF Value™ of NT$69.79. GuruFocus considers Donpon Precision to be Modestly Undervalued.

Key valuation signals for ROCO:3290:

  • Cyclically Adjusted PB Ratio: 2.21 (58% above median its 10-year median of 1.40)
  • GF Value™: NT$69.79 vs. price of NT$57.20 (18% below fair value)
  • GF Score™: 67/100 with 7 warning signs
  • Industry Position: 1.8% above the Industrial Products median (#1065 of 2229)

No single metric tells the full story. See the ROCO:3290 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Donpon Precision Business Description

Address No. 58, Changxing Road, Section 2, Luzhu District, Taoyuan, TWN, 338020
Donpon Precision Inc engaged in the manufacturing, processing, and trading of plastic products, molds, automobile parts, electronic parts, etc.
67GF Score

Get the complete analysis for ROCO:3290

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

NT$57.20
Price
NT$69.79
GF Value