Tons Lightology (ROCO:4972) Cyclically Adjusted Book per Share: NT$34.25 (As of Dec. 2025)

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ROCO:4972 Tons Lightology Inc ROCO:4972
65 GF Score
Price NT$16.80
GF Value NT$20.13
Valuation Modestly Undervalued
! 3 Warning Signs
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What is Tons Lightology Cyclically Adjusted Book per Share?

Tons Lightology ROCO:4972 -0.59% 65 Cyclically Adjusted Book per Share is NT$34.25 as of Dec. 2025. GuruFocus rates ROCO:4972 with a GF Score™ of 65/100 and a GF Value™ of NT$20.13 (Modestly Undervalued). The stock has 3 warning signs 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.

Tons Lightology's adjusted book value per share for the three months ended in Dec. 2025 was NT$25.504. 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$34.25 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Tons Lightology's average Cyclically Adjusted Book Growth Rate was -1.30% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 0.40% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 2.80% 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 Tons Lightology was 5.10% per year. The lowest was 0.40% per year. And the median was 2.70% per year.

As of today (2026-07-14), Tons Lightology's current stock price is NT$16.80. Tons Lightology's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$34.25. Tons Lightology's Cyclically Adjusted PB Ratio of today is 0.49.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Tons Lightology was 1.23. The lowest was 0.48. And the median was 0.82.


Tons Lightology  (ROCO:4972) 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.

Tons Lightology's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=16.80/34.25
=0.49

* 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 Tons Lightology was 1.23. The lowest was 0.48. And the median was 0.82.


Be Aware

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


Tons Lightology Cyclically Adjusted Book per Share Related Terms


Tons Lightology Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Tons Lightology'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.

Tons Lightology Cyclically Adjusted Book per Share Chart

Tons Lightology 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 32.07 33.84 34.46 34.69 34.25

Tons Lightology 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 34.69 34.90 34.88 34.72 34.25

ROCO:4972 vs SN, SGI, MHK: Cyclically Adjusted Book per Share Comparison

For the Furnishings, Fixtures & Appliances subindustry, Tons Lightology'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.


Tons Lightology Cyclically Adjusted PB Ratio vs Furnishings, Fixtures & Appliances Industry

For the Furnishings, Fixtures & Appliances industry and Consumer Cyclical sector, Tons Lightology's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


ROCO:4972
65GF Score
Tons Lightology Inc ROCO:4972
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tons Lightology 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, Tons Lightology'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)
=25.504/324.0540*324.0540
=25.504

Current CPI (Dec. 2025) = 324.0540.

Tons Lightology Quarterly Data

Book Value per Share CPI Adj_Book
201603 31.170 238.132 42.417
201606 28.709 241.018 38.600
201609 29.126 241.428 39.094
201612 29.400 241.432 39.461
201703 28.843 243.801 38.337
201706 27.055 244.955 35.791
201709 28.331 246.819 37.196
201712 29.662 246.524 38.990
201803 39.238 249.554 50.952
201806 33.701 251.989 43.339
201809 33.985 252.439 43.626
201812 29.875 251.233 38.534
201903 30.844 254.202 39.320
201906 28.481 256.143 36.032
201909 28.289 256.759 35.703
201912 29.170 256.974 36.784
202003 25.121 258.115 31.539
202006 27.024 257.797 33.970
202009 28.424 260.280 35.388
202012 30.031 260.474 37.361
202103 27.365 264.877 33.479
202106 27.269 271.696 32.524
202109 28.253 274.310 33.376
202112 29.697 278.802 34.517
202203 28.635 287.504 32.275
202206 28.610 296.311 31.289
202209 28.899 296.808 31.552
202212 29.521 296.797 32.232
202303 28.054 301.836 30.119
202306 27.104 305.109 28.787
202309 27.871 307.789 29.344
202312 27.999 306.746 29.579
202403 27.468 312.332 28.499
202406 27.849 314.175 28.725
202409 28.154 315.301 28.936
202412 28.178 315.605 28.932
202503 28.390 319.799 28.768
202506 24.401 322.561 24.514
202509 24.487 324.800 24.431
202512 25.504 324.054 25.504

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$34.25 mean?
Tons Lightology (ROCO:4972) has a Cyclically Adjusted Book per Share of NT$34.25 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 Tons Lightology and its competitors.
Is Tons Lightology's Cyclically Adjusted Book per Share too high?
Tons Lightology's current Cyclically Adjusted Book per Share is NT$34.25. Overall, Tons Lightology has a GF Score™ of 65/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Tons Lightology's Cyclically Adjusted Book per Share compare to SN and SGI?
Tons Lightology's Cyclically Adjusted Book per Share of NT$34.25 can be compared against companies in the Furnishings, Fixtures & Appliances 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 a Furnishings, Fixtures & Appliances company?
A good Cyclically Adjusted Book per Share depends on the Furnishings, Fixtures & Appliances 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 Tons Lightology and its competitors. Tons Lightology's current Cyclically Adjusted Book per Share is NT$34.25. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tons Lightology stock overvalued right now?
Based on GuruFocus' analysis, Tons Lightology (ROCO:4972) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$20.13, compared to a current price of NT$16.80 — trading 16.5% below its estimated fair value. The current Cyclically Adjusted Book per Share is NT$34.25. Tons Lightology's overall GF Score™ is 65/100 with 3 warning signs 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 Tons Lightology (ROCO:4972), the current Cyclically Adjusted Book per Share is NT$34.25 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 Tons Lightology (ROCO:4972) Overvalued in 2026?

Based on GuruFocus' analysis, Tons Lightology stock appears to be undervalued. The current stock price of NT$16.80 is trading 16.5% below its estimated GF Value™ of NT$20.13. GuruFocus considers Tons Lightology to be Modestly Undervalued.

Key valuation signals for ROCO:4972:

  • Cyclically Adjusted Book per Share: NT$34.25
  • GF Value™: NT$20.13 vs. price of NT$16.80 (16.5% below fair value)
  • GF Score™: 65/100 with 3 warning signs

No single metric tells the full story. See the ROCO:4972 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tons Lightology Business Description

Address No. 236, Bo’ai Street, 4th Floor, Shulin District, New Taipei, TWN, 23845
Tons Lightology Inc engages in the design, manufacture, and sale of commercial lighting fixtures. The company's operating segment includes Tons Lightology Inc; Titan Lighting Co. Ltd, Zhongshan Tons Lighting Co. Ltd, and StrongLED Lighting System (Cayman) Co. Ltd. It generates maximum revenue from the Tons Lightology Inc. segment. Geographically, it derives a majority of revenue from Europe and also has a presence in Asia, Oceania, and other countries. It focuses on indoor lighting and outdoor lighting. The company's products are used for museum/gallery, commercial, hotel, club, office, and Outdoor applications.
65GF Score

Get the complete analysis for ROCO:4972

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

NT$16.80
Price
NT$20.13
GF Value