Longwell Co (ROCO:6290) Cyclically Adjusted Book per Share: NT$36.59 (As of Dec. 2025)

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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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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:6290 Longwell Co ROCO:6290
60 GF Score
Price NT$257.50
GF Value NT$105.20
Valuation Significantly Overvalued
! 1 Warning Sign
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What is Longwell Co Cyclically Adjusted Book per Share?

Longwell Co ROCO:6290 -2.46% 60 Cyclically Adjusted Book per Share is NT$36.59 as of Dec. 2025. GuruFocus rates ROCO:6290 with a GF Score™ of 60/100 and a GF Value™ of NT$105.20 (Significantly Overvalued). The stock has 1 warning sign investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

Longwell Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$47.480. 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$36.59 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Longwell Co's average Cyclically Adjusted Book Growth Rate was 4.50% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 4.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 5.70% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Longwell Co was 6.60% per year. The lowest was 4.60% per year. And the median was 5.65% per year.

As of today (2026-07-17), Longwell Co's current stock price is NT$257.50. Longwell Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$36.59. Longwell Co's Cyclically Adjusted PB Ratio of today is 7.04.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Longwell Co was 9.58. The lowest was 1.53. And the median was 2.12.


Longwell Co  (ROCO:6290) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

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.

Longwell Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=257.50/36.59
=7.04

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Longwell Co was 9.58. The lowest was 1.53. And the median was 2.12.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Longwell Co Cyclically Adjusted Book per Share Related Terms


Longwell Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Longwell Co's Cyclically Adjusted Book per Share 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.

Longwell Co Cyclically Adjusted Book per Share Chart

Longwell Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 29.84 31.96 33.46 35.01 36.59

Longwell Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Cyclically Adjusted Book per Share 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 35.01 35.56 35.99 36.43 36.59

ROCO:6290 vs VRT, BE: Cyclically Adjusted Book per Share Comparison

For the Electrical Equipment & Parts subindustry, Longwell Co'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.


Longwell Co Cyclically Adjusted PB Ratio vs Industrial Products Industry

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

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


ROCO:6290
60GF Score
Longwell Co ROCO:6290
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Longwell Co Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get 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.

For example, Longwell Co's adjusted Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book= Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=47.48/324.0540*324.0540
=47.480

Current CPI (Dec. 2025) = 324.0540.

Longwell Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 28.198 238.132 38.372
201606 26.345 241.018 35.421
201609 26.599 241.428 35.702
201612 27.822 241.432 37.343
201703 26.705 243.801 35.496
201706 24.794 244.955 32.800
201709 25.318 246.819 33.241
201712 25.823 246.524 33.944
201803 25.913 249.554 33.649
201806 25.106 251.989 32.286
201809 24.934 252.439 32.008
201812 25.383 251.233 32.740
201903 26.737 254.202 34.084
201906 26.945 256.143 34.089
201909 28.420 256.759 35.869
201912 29.495 256.974 37.194
202003 29.757 258.115 37.359
202006 27.302 257.797 34.319
202009 28.705 260.280 35.738
202012 30.156 260.474 37.517
202103 31.386 264.877 38.398
202106 32.085 271.696 38.268
202109 28.760 274.310 33.975
202112 29.195 278.802 33.934
202203 31.072 287.504 35.022
202206 30.209 296.311 33.037
202209 32.514 296.808 35.499
202212 33.774 296.797 36.876
202303 34.966 301.836 37.540
202306 33.186 305.109 35.247
202309 36.401 307.789 38.325
202312 36.478 306.746 38.536
202403 38.882 312.332 40.341
202406 37.942 314.175 39.135
202409 39.186 315.301 40.274
202412 41.200 315.605 42.303
202503 39.278 319.799 39.801
202506 38.053 322.561 38.229
202509 42.213 324.800 42.116
202512 47.480 324.054 47.480

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

What does a Cyclically Adjusted Book per Share of NT$36.59 mean?
Longwell Co (ROCO:6290) has a Cyclically Adjusted Book per Share of NT$36.59 as of Dec. 2025. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Longwell Co and its competitors.
Is Longwell Co's Cyclically Adjusted Book per Share too high?
Longwell Co's current Cyclically Adjusted Book per Share is NT$36.59. Overall, Longwell Co has a GF Score™ of 60/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Longwell Co's Cyclically Adjusted Book per Share compare to VRT and BE?
Longwell Co's Cyclically Adjusted Book per Share of NT$36.59 can be compared against companies in the Industrial Products industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for an Industrial Products company?
A good Cyclically Adjusted Book per Share depends on the Industrial Products industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Longwell Co and its competitors. Longwell Co's current Cyclically Adjusted Book per Share is NT$36.59. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Longwell Co stock overvalued right now?
Based on GuruFocus' analysis, Longwell Co (ROCO:6290) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$105.20, compared to a current price of NT$257.50 — trading 144.8% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$36.59. Longwell Co's overall GF Score™ is 60/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Longwell Co (ROCO:6290), the current Cyclically Adjusted Book per Share is NT$36.59 as of Dec. 2025. 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 Longwell Co (ROCO:6290) Overvalued in 2026?

Based on GuruFocus' analysis, Longwell Co stock appears to be overvalued. The current stock price of NT$257.50 is trading 144.8% above its estimated GF Value™ of NT$105.20. GuruFocus considers Longwell Co to be Significantly Overvalued.

Key valuation signals for ROCO:6290:

  • Cyclically Adjusted Book per Share: NT$36.59
  • GF Value™: NT$105.20 vs. price of NT$257.50 (144.8% above fair value)
  • GF Score™: 60/100 with 1 warning sign

No single metric tells the full story. See the ROCO:6290 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Longwell Co Business Description

Address Chang An E. Road, Section 1, No. 36, 10th Floor, Taipei, TWN
Longwell Co is a cable and electronic components producer based in Taiwan. Its product offerings include high-amperage cables, busbar and busbar connectors, optical cables, power cords, cable assemblies, jumper cords, EV charging kits, data cables, Type-C and USB cables, and other similar products and components. Geographically, the Group generates maximum revenue from China, and the rest from America, Taiwan, Japan, and other markets.
60GF Score

Get the complete analysis for ROCO:6290

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

NT$257.50
Price
NT$105.20
GF Value