Aqualine (TSE:6173) E10: 円-79.02 (As of Feb. 2026)


TSE:6173 Aqualine Ltd TSE:6173
44 GF Score
Price 円13.00
GF Value 円44.95
Valuation Possible Value Trap
! 10 Warning Signs
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What is Aqualine E10?

Aqualine TSE:6173 44 E10 is 円-79.02 as of Feb. 2026. GuruFocus rates TSE:6173 with a GF Score™ of 44/100 and a GF Value™ of 円44.95 (Possible Value Trap). The stock has 10 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.

Aqualine's adjusted earnings per share data for the fiscal year that ended in Feb. 2026 was 円-96.850. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円-79.02 for the trailing ten years ended in Feb. 2026.

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 (2026-07-01), Aqualine's current stock price is 円 13.00. Aqualine's E10 for the fiscal year that ended in Feb. 2026 was 円-79.02. Aqualine's Shiller PE Ratio of today is .


Aqualine  (TSE:6173) 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.


Be Aware

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


Aqualine E10 Related Terms


Aqualine E10 Historical Data

* Premium members only.

The historical data trend for Aqualine'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.

Aqualine E10 Chart

Aqualine Annual Data
Trend Feb17 Feb18 Feb19 Feb20 Feb21 Feb22 Feb23 Feb24 Feb25 Feb26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 -40.95 -56.45 -79.02

Aqualine Semi-Annual Data
Aug16 Feb17 Aug17 Feb18 Aug18 Feb19 Aug19 Feb20 Aug20 Feb21 Aug21 Feb22 Aug22 Feb23 Aug23 Feb24 Aug24 Feb25 Aug25 Feb26
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 -40.95 0.00 -56.45 0.00 -79.02

TSE:6173 vs CTAS, CPRT, GPN: E10 Comparison

For the Specialty Business Services subindustry, Aqualine'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.


Aqualine Shiller PE Ratio vs Business Services Industry

For the Business Services industry and Industrials sector, Aqualine's Shiller PE Ratio distribution charts can be found below:

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


TSE:6173
44GF Score
Aqualine Ltd TSE:6173
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Aqualine 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, Aqualine's adjusted earnings per share data for the fiscal year that ended in Feb. 2026 was:

Adj_EPS=Earnings per Share (Diluted) /CPI of Feb. 2026 (Change)*Current CPI (Feb. 2026)
=-96.85/112.2000*112.2000
=-96.850

Current CPI (Feb. 2026) = 112.2000.

Aqualine Annual Data

per_share_eps CPI Adj_EPS
201702 110.200 98.100 126.039
201802 124.260 99.500 140.120
201902 33.970 99.700 38.229
202002 -17.200 100.300 -19.241
202102 -320.810 99.800 -360.670
202202 -275.400 100.700 -306.851
202302 -79.780 104.000 -86.070
202402 -123.690 106.900 -129.822
202502 -93.900 110.800 -95.086
202602 -96.850 112.200 -96.850

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 円-79.02 mean?
Aqualine (TSE:6173) has a E10 of 円-79.02 as of Feb. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Aqualine and its competitors.
Is Aqualine's E10 too high?
Aqualine's current E10 is 円-79.02. Overall, Aqualine has a GF Score™ of 44/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Aqualine's E10 compare to CTAS and CPRT?
Aqualine's E10 of 円-79.02 can be compared against companies in the Business Services 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 Business Services company?
A good E10 depends on the Business Services 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 Aqualine and its competitors. Aqualine's current E10 is 円-79.02. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aqualine stock overvalued right now?
Based on GuruFocus' analysis, Aqualine (TSE:6173) is currently considered Possible Value Trap. The stock's GF Value™ is 円44.95, compared to a current price of 円13.00 — trading 71.1% below its estimated fair value. The current E10 is 円-79.02. Aqualine's overall GF Score™ is 44/100 with 10 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 Aqualine (TSE:6173), the current E10 is 円-79.02 as of Feb. 2026. 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 Aqualine (TSE:6173) Overvalued in 2026?

Based on GuruFocus' analysis, Aqualine stock appears to be undervalued. The current stock price of 円13.00 is trading 71.1% below its estimated GF Value™ of 円44.95. GuruFocus considers Aqualine to be Possible Value Trap.

Key valuation signals for TSE:6173:

  • E10: 円-79.02
  • GF Value™: 円44.95 vs. price of 円13.00 (71.1% below fair value)
  • GF Score™: 44/100 with 10 warning signs

No single metric tells the full story. See the TSE:6173 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Aqualine Business Description

Address 8-8 Kami-Hatchobori, 6th Floor, 1st Uenoya Building, Naka-ku, Hiroshima, JPN, 730-0012
Aqualine Ltd is engaged in the repair of water supply products. The company operates in three reportable segments. The Water-related Service Support Business provides support to franchisees, including call center operations for emergency water-related trouble repairs and response, sales and installation of water-related products, and other repair work. The Advertising Media Business sells internet advertising in the field of emergency care. The Mineral Water Business involves the sale of mineral water and the handling of water dispensers. It generates the majority of its revenue from the Water-related Service Support Business segment.
44GF Score

Get the complete analysis for TSE:6173

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

円13.00
Price
円44.95
GF Value