FGSGF (Flat Glass Group Co) Cyclically Adjusted PB Ratio: (As of Sep. 21, 2026)

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.

FGSGF Flat Glass Group Co Ltd FGSGF
75 GF Score
Price $0.85
GF Value $1.68
Valuation Possible Value Trap
! 6 Warning Signs
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What is Flat Glass Group Co Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Flat Glass Group Co  (OTCPK:FGSGF) 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.


Flat Glass Group Co Cyclically Adjusted PB Ratio Related Terms


Flat Glass Group Co Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Flat Glass Group Co'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.

Flat Glass Group Co Cyclically Adjusted PB Ratio Chart

Flat Glass Group Co 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 13.07 6.34 3.02 2.32 1.97

Flat Glass Group Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 1.66 2.34 1.97 1.96 1.57

FGSGF vs FSLR, NXT, ENPH: Cyclically Adjusted PB Ratio Comparison

For the Solar subindustry, Flat Glass Group 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.


Flat Glass Group Co Cyclically Adjusted PB Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Flat Glass Group Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


FGSGF
75GF Score
Flat Glass Group Co Ltd FGSGF
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Flat Glass Group Co 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.

Flat Glass Group Co's Cyclically Adjusted Book per Share for the fiscal year that ended in Dec25 is calculated as:

For example, Flat Glass Group Co's adjusted Book Value per Share data for the fiscal year that ended in Dec25 was:

Adj_Book=Book Value per Share/CPI of Dec25 (Change)*Current CPI (Dec25)
=1.359/115.8323*115.8323
=1.359

Current CPI (Dec25) = 115.8323.

Flat Glass Group Co Annual Data

Book Value per Share CPI Adj_Book
201612 0.236 102.600 0.266
201712 0.277 104.500 0.307
201812 0.297 106.500 0.323
201912 0.332 111.200 0.346
202012 0.543 111.500 0.564
202112 0.865 113.108 0.886
202212 0.942 115.116 0.948
202312 1.338 114.781 1.350
202412 1.256 114.893 1.266
202512 1.359 115.832 1.359

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.

Is Flat Glass Group Co (FGSGF) Overvalued in 2026?

Based on GuruFocus' analysis, Flat Glass Group Co stock appears to be undervalued. The current stock price of $0.85 is trading 49.5% below its estimated GF Value™ of $1.68. GuruFocus considers Flat Glass Group Co to be Possible Value Trap.

Key valuation signals for FGSGF:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $1.68 vs. price of $0.85 (49.5% below fair value)
  • GF Score™: 75/100 with 6 warning signs

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


Flat Glass Group Co Business Description

Address No. 1999 Yunhe Road, Xiuzhou District, Zhejiang Province, Jiaxing, CHN
Flat Glass Group Co Ltd manufactures and sells glass and glass products. The company operates in six segments: PV glass, Household Glass, Architectural Glass, Float Glass, Mining products, Electricity generation, and Other businesses. The majority of revenue is derived from the PV glass segment. Its geographical segments are PRC, Asia (excluding the PRC), Europe, North America, and Others.
75GF Score

Get the complete analysis for FGSGF

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

$0.85
Price
$1.68
GF Value