Buima Group (ROCO:5543) E10: NT$-0.90 (As of Dec. 2025)

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.

ROCO:5543 Buima Group Inc ROCO:5543
64 GF Score
Price NT$28.55
GF Value NT$29.14
Valuation Fairly Valued
! 4 Warning Signs
View Full Analysis

What is Buima Group E10?

Buima Group ROCO:5543 -0.17% 64 E10 is NT$-0.90 as of Dec. 2025. GuruFocus rates ROCO:5543 with a GF Score™ of 64/100 and a GF Value™ of NT$29.14 (Fairly Valued). The stock has 4 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.

Buima Group's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$-0.620. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$-0.90 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 (2026-07-13), Buima Group's current stock price is NT$28.55. Buima Group's E10 for the quarter that ended in Dec. 2025 was NT$-0.90. Buima Group's Shiller PE Ratio of today is .

During the past 12 years, the highest Shiller PE Ratio of Buima Group was 349.64. The lowest was 198.50. And the median was 228.07.


Buima Group  (ROCO:5543) 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 12 years, the highest Shiller P/E Ratio of Buima Group was 349.64. The lowest was 198.50. And the median was 228.07.


Be Aware

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


Buima Group E10 Related Terms


Buima Group E10 Historical Data

* Premium members only.

The historical data trend for Buima Group'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.

Buima Group E10 Chart

Buima Group 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 -0.45 -0.90

Buima Group Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 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 -0.45 -0.47 -0.71 -0.73 -0.90

ROCO:5543 vs TT, JCI, CARR: E10 Comparison

For the Building Products & Equipment subindustry, Buima Group'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.


Buima Group Shiller PE Ratio vs Construction Industry

For the Construction industry and Industrials sector, Buima Group's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Buima Group's Shiller PE Ratio falls into.


ROCO:5543
64GF Score
Buima Group Inc ROCO:5543
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Buima Group 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, Buima Group'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)
=-0.62/324.0540*324.0540
=-0.620

Current CPI (Dec. 2025) = 324.0540.

Buima Group Quarterly Data

per share eps CPI Adj_EPS
201603 0.251 238.132 0.342
201606 0.659 241.018 0.886
201609 -0.353 241.428 -0.474
201612 -0.157 241.432 -0.211
201703 -0.689 243.801 -0.916
201706 -0.205 244.955 -0.271
201709 -0.344 246.819 -0.452
201712 -0.900 246.524 -1.183
201803 0.028 249.554 0.036
201806 0.075 251.989 0.096
201809 0.272 252.439 0.349
201812 0.197 251.233 0.254
201903 0.094 254.202 0.120
201906 0.197 256.143 0.249
201909 0.113 256.759 0.143
201912 0.188 256.974 0.237
202003 -0.394 258.115 -0.495
202006 0.028 257.797 0.035
202009 0.949 260.280 1.182
202012 0.179 260.474 0.223
202103 0.150 264.877 0.184
202106 1.504 271.696 1.794
202109 0.639 274.310 0.755
202112 0.696 278.802 0.809
202203 -0.517 287.504 -0.583
202206 0.255 296.311 0.279
202209 0.057 296.808 0.062
202212 -1.331 296.797 -1.453
202303 -1.114 301.836 -1.196
202306 -0.482 305.109 -0.512
202309 -0.117 307.789 -0.123
202312 -0.759 306.746 -0.802
202403 0.360 312.332 0.374
202406 -0.690 314.175 -0.712
202409 0.110 315.301 0.113
202412 -5.490 315.605 -5.637
202503 -0.150 319.799 -0.152
202506 -1.190 322.561 -1.196
202509 -0.550 324.800 -0.549
202512 -0.620 324.054 -0.620

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 NT$-0.90 mean?
Buima Group (ROCO:5543) has a E10 of NT$-0.90 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Buima Group and its competitors.
Is Buima Group's E10 too high?
Buima Group's current E10 is NT$-0.90. Overall, Buima Group has a GF Score™ of 64/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Buima Group's E10 compare to TT and JCI?
Buima Group's E10 of NT$-0.90 can be compared against companies in the Construction 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 Construction company?
A good E10 depends on the Construction 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 Buima Group and its competitors. Buima Group's current E10 is NT$-0.90. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Buima Group stock overvalued right now?
Based on GuruFocus' analysis, Buima Group (ROCO:5543) is currently considered Fairly Valued. The stock's GF Value™ is NT$29.14, compared to a current price of NT$28.55 — trading 2% below its estimated fair value. The current E10 is NT$-0.90. Buima Group's overall GF Score™ is 64/100 with 4 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 Buima Group (ROCO:5543), the current E10 is NT$-0.90 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 Buima Group (ROCO:5543) Overvalued in 2026?

Based on GuruFocus' analysis, Buima Group stock appears to be undervalued. The current stock price of NT$28.55 is trading 2% below its estimated GF Value™ of NT$29.14. GuruFocus considers Buima Group to be Fairly Valued.

Key valuation signals for ROCO:5543:

  • E10: NT$-0.90
  • GF Value™: NT$29.14 vs. price of NT$28.55 (2% below fair value)
  • GF Score™: 64/100 with 4 warning signs

No single metric tells the full story. See the ROCO:5543 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Buima Group Business Description

Address No. 880, Zhongzheng Road, 235601 13th Floor, Zhonghe District, Taipei, TWN, 104
Buima Group Inc is engaged in manufacture and sales of steel wall partition building materials, fire insulation partitions, metal ceilings, grids, new building materials, battery and electric appliances, comprehensive constructions, development and lease of housings and buildings, development, lease and sales of industrial plants, trading of property, dredging industry and trading of steel. Its segments are the manufacturing, R&D and sales of new building materials (building materials - Wholesale), Battery product, Engineering Construction. The majority of revenue is derived from Battery product segment. Geographically it operates in Taiwan, and Mainland China with majority of revenue deriving from Taiwan.
64GF Score

Get the complete analysis for ROCO:5543

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

NT$28.55
Price
NT$29.14
GF Value