CBUMY (China National Building Material Co) E10: $-0.65 (As of Dec. 2025)


CBUMY China National Building Material Co Ltd CBUMY
70 GF Score
Price $32.81
GF Value $23.39
Valuation Significantly Overvalued
! 8 Warning Signs
View Full Analysis

What is China National Building Material Co E10?

China National Building Material Co CBUMY 70 E10 is $-0.65 as of Dec. 2025. GuruFocus rates CBUMY with a GF Score™ of 70/100 and a GF Value™ of $23.39 (Significantly Overvalued). The stock has 8 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

China National Building Material Co's adjusted earnings per share data for the three months ended in Dec. 2025 was $-6.196. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $-0.65 for the trailing ten years ended in Dec. 2025.

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 E10 growth rate using E10 data.

As of today (2026-06-28), China National Building Material Co's current stock price is $32.81. China National Building Material Co's E10 for the quarter that ended in Dec. 2025 was $-0.65. China National Building Material Co's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of China National Building Material Co was 17.30. The lowest was 11.45. And the median was 13.53.


China National Building Material Co  (OTCPK:CBUMY) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

During the past 13 years, the highest Shiller P/E Ratio of China National Building Material Co was 17.30. The lowest was 11.45. And the median was 13.53.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


China National Building Material Co E10 Related Terms


China National Building Material Co E10 Historical Data

* Premium members only.

The historical data trend for China National Building Material Co's E10 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.

China National Building Material Co E10 Chart

China National Building Material Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 -0.65

China National Building Material Co Quarterly Data
Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
E10 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 0.00 0.00 2.16 2.31 -0.65

CBUMY vs CRH, VMC, MLM: E10 Comparison

For the Building Materials subindustry, China National Building Material Co's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.


China National Building Material Co Shiller PE Ratio vs Building Materials Industry

For the Building Materials industry and Basic Materials sector, China National Building Material Co's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where China National Building Material Co's Shiller PE Ratio falls into.


CBUMY
70GF Score
China National Building Material Co Ltd CBUMY
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

China National Building Material Co E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

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, China National Building Material Co's adjusted earnings per share data for the three months ended in Dec. 2025 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=-6.196/115.8323*115.8323
=-6.196

Current CPI (Dec. 2025) = 115.8323.

China National Building Material Co Quarterly Data

per share eps CPI Adj_EPS
200612 0.000 77.793 0.000
200712 0.000 82.911 0.000
200812 0.000 83.956 0.000
200912 0.000 85.386 0.000
201006 0.000 85.886 0.000
201012 0.000 89.289 0.000
201106 0.000 91.612 0.000
201112 0.000 92.885 0.000
201206 0.000 93.495 0.000
201212 0.000 95.237 0.000
201306 0.000 95.984 0.000
201312 0.000 97.624 0.000
201406 0.000 98.200 0.000
201412 0.000 99.000 0.000
201506 0.000 99.500 0.000
201512 0.000 100.600 0.000
201606 0.000 101.400 0.000
201612 0.000 102.600 0.000
201706 0.000 103.100 0.000
201712 0.000 104.500 0.000
201806 0.000 104.900 0.000
201812 0.000 106.500 0.000
201906 0.000 107.700 0.000
201912 0.000 111.200 0.000
202006 0.000 110.400 0.000
202012 0.000 111.500 0.000
202106 0.000 111.769 0.000
202112 0.000 113.108 0.000
202206 0.000 114.558 0.000
202212 0.000 115.116 0.000
202306 0.000 114.558 0.000
202312 0.000 114.781 0.000
202403 -1.111 115.227 -1.117
202406 -0.544 114.781 -0.549
202409 1.115 115.785 1.115
202412 2.501 114.893 2.521
202503 -0.469 115.116 -0.472
202506 1.672 114.907 1.685
202509 1.529 115.471 1.534
202512 -6.196 115.832 -6.196

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of $-0.65 mean?
China National Building Material Co (CBUMY) has a E10 of $-0.65 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on China National Building Material Co and its competitors.
Is China National Building Material Co's E10 too high?
China National Building Material Co's current E10 is $-0.65. Overall, China National Building Material Co has a GF Score™ of 70/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does China National Building Material Co's E10 compare to CRH and VMC?
China National Building Material Co's E10 of $-0.65 can be compared against companies in the Building Materials industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for a Building Materials company?
A good E10 depends on the Building Materials industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on China National Building Material Co and its competitors. China National Building Material Co's current E10 is $-0.65. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is China National Building Material Co stock overvalued right now?
Based on GuruFocus' analysis, China National Building Material Co (CBUMY) is currently considered Significantly Overvalued. The stock's GF Value™ is $23.39, compared to a current price of $32.81 — trading 40.3% above its estimated fair value. The current E10 is $-0.65. China National Building Material Co's overall GF Score™ is 70/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For China National Building Material Co (CBUMY), the current E10 is $-0.65 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 China National Building Material Co (CBUMY) Overvalued in 2026?

Based on GuruFocus' analysis, China National Building Material Co stock appears to be overvalued. The current stock price of $32.81 is trading 40.3% above its estimated GF Value™ of $23.39. GuruFocus considers China National Building Material Co to be Significantly Overvalued.

Key valuation signals for CBUMY:

  • E10: $-0.65
  • GF Value™: $23.39 vs. price of $32.81 (40.3% above fair value)
  • GF Score™: 70/100 with 8 warning signs

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


China National Building Material Co Business Description

Address No. 17 Fuxing Road, 21st Floor, Tower 2 (Building B), Guohai Plaza, Haidian District, Beijing, CHN, 100036
China National Building Material Co Ltd. is a state-owned building material holding company. It has three reportable segments: Basic building materials segment, New materials segment, and Engineering technology service segment. The company's majority of revenue is from the Basic building materials segment. Geographically, the company operates in the PRC, Asia, Europe, the Middle East, Africa, the Americas, and other regions, with the maximum revenue from the PRC and Africa.
70GF Score

Get the complete analysis for CBUMY

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$32.81
Price
$23.39
GF Value