Key Coffee (TSE:2594) E10: 円2.52 (As of Mar. 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.

TSE:2594 Key Coffee Inc TSE:2594
61 GF Score
Price 円1,983.00
GF Value 円2,641.44
Valuation Modestly Undervalued
! 4 Warning Signs
View Full Analysis

What is Key Coffee E10?

Key Coffee TSE:2594 -0.30% 61 E10 is 円2.52 as of Mar. 2026. GuruFocus rates TSE:2594 with a GF Score™ of 61/100 and a GF Value™ of 円2,641.44 (Modestly Undervalued). 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.

Key Coffee's adjusted earnings per share data for the three months ended in Mar. 2026 was 円-7.000. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円2.52 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Key Coffee's average E10 Growth Rate was -100.00% 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 E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Key Coffee was 0.40% per year. The lowest was -44.10% per year. And the median was -26.70% per year.

As of today (2026-07-16), Key Coffee's current stock price is 円1983.00. Key Coffee's E10 for the quarter that ended in Mar. 2026 was 円2.52. Key Coffee's Shiller PE Ratio of today is 786.90.

During the past 13 years, the highest Shiller PE Ratio of Key Coffee was 1941.35. The lowest was 68.59. And the median was 157.92.


Key Coffee  (TSE:2594) 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.

Key Coffee's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=1983.00/2.52
=786.90

* 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 Shiller P/E Ratio of Key Coffee was 1941.35. The lowest was 68.59. And the median was 157.92.


Be Aware

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


Key Coffee E10 Related Terms


Key Coffee E10 Historical Data

* Premium members only.

The historical data trend for Key Coffee'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.

Key Coffee E10 Chart

Key Coffee Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 12.57 8.39 4.42 1.60 2.52

Key Coffee Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 1.60 0.59 1.52 0.43 2.52

TSE:2594 vs KHC, GIS: E10 Comparison

For the Packaged Foods subindustry, Key Coffee'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.


Key Coffee Shiller PE Ratio vs Consumer Packaged Goods Industry

For the Consumer Packaged Goods industry and Consumer Defensive sector, Key Coffee's Shiller PE Ratio distribution charts can be found below:

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


TSE:2594
61GF Score
Key Coffee Inc TSE:2594
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Key Coffee 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, Key Coffee's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=-7/112.7000*112.7000
=-7.000

Current CPI (Mar. 2026) = 112.7000.

Key Coffee Quarterly Data

per share eps CPI Adj_EPS
201606 28.620 98.100 32.879
201609 11.920 98.000 13.708
201612 15.159 98.400 17.362
201703 -4.680 98.100 -5.377
201706 15.600 98.500 17.849
201709 3.380 98.800 3.856
201712 4.588 99.400 5.202
201803 -9.577 99.200 -10.880
201806 6.740 99.200 7.657
201809 1.635 99.900 1.844
201812 19.340 99.700 21.862
201903 -16.790 99.700 -18.979
201906 17.250 99.800 19.480
201909 26.162 100.100 29.455
201912 15.120 100.500 16.955
202003 -24.667 100.300 -27.717
202006 -49.930 99.900 -56.327
202009 -47.372 99.900 -53.442
202012 6.073 99.300 6.893
202103 -99.603 99.900 -112.365
202106 14.090 99.500 15.959
202109 0.327 100.100 0.368
202112 34.380 100.100 38.708
202203 -14.110 101.100 -15.729
202206 24.510 101.800 27.134
202209 -3.140 103.100 -3.432
202212 12.237 104.100 13.248
202303 -25.540 104.400 -27.570
202306 27.610 105.200 29.578
202309 9.107 106.200 9.664
202312 11.301 106.800 11.925
202403 -39.610 107.200 -41.642
202406 21.590 108.200 22.488
202409 -4.610 108.900 -4.771
202412 37.030 110.700 37.699
202503 -44.010 111.100 -44.644
202506 15.020 111.700 15.154
202509 13.090 112.000 13.172
202512 25.030 113.000 24.964
202603 -7.000 112.700 -7.000

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2.52 mean?
Key Coffee (TSE:2594) has a E10 of 円2.52 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Key Coffee and its competitors.
Is Key Coffee's E10 too high?
Key Coffee's current E10 is 円2.52. Overall, Key Coffee has a GF Score™ of 61/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Key Coffee's E10 compare to KHC and GIS?
Key Coffee's E10 of 円2.52 can be compared against companies in the Consumer Packaged Goods 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 Consumer Packaged Goods company?
A good E10 depends on the Consumer Packaged Goods 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 Key Coffee and its competitors. Key Coffee's current E10 is 円2.52. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Key Coffee stock overvalued right now?
Based on GuruFocus' analysis, Key Coffee (TSE:2594) is currently considered Modestly Undervalued. The stock's GF Value™ is 円2,641.44, compared to a current price of 円1,983.00 — trading 24.9% below its estimated fair value. The current E10 is 円2.52. Key Coffee's overall GF Score™ is 61/100 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 Key Coffee (TSE:2594), the current E10 is 円2.52 as of Mar. 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 Key Coffee (TSE:2594) Overvalued in 2026?

Based on GuruFocus' analysis, Key Coffee stock appears to be undervalued. The current stock price of 円1,983.00 is trading 24.9% below its estimated GF Value™ of 円2,641.44. GuruFocus considers Key Coffee to be Modestly Undervalued.

Key valuation signals for TSE:2594:

  • E10: 円2.52
  • GF Value™: 円2,641.44 vs. price of 円1,983.00 (24.9% below fair value)
  • GF Score™: 61/100 with 4 warning signs

No single metric tells the full story. See the TSE:2594 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Key Coffee Business Description

Address 2-34-4 Nishi-Shinbashi, Minato-ku, Tokyo, JPN, 105-8705
Key Coffee Inc is a Japan-based company operates in the coffee-related business. It is engaged in the plantation, production, and marketing of coffee and related products. Its products include raw coffee beans, instant coffee, iced coffee, iced tea, fruit juice, and other coffee-related products. Geographically, the business activities are carried out through the region of Japan.
61GF Score

Get the complete analysis for TSE:2594

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

円1,983.00
Price
円2,641.44
GF Value