TANAF (Tianan Technology Group) E10: $0.00 (As of Dec. 2025)


TANAF Tianan Technology Group Ltd TANAF
15 GF Score
Price $1.01
! 3 Warning Signs
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What is Tianan Technology Group E10?

Tianan Technology Group TANAF -38.41% 15 E10 is $0.00 as of Dec. 2025. GuruFocus rates TANAF with a GF Score™ of 15/100. The stock has 3 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.

Tianan Technology Group's adjusted earnings per share data for the fiscal year that ended in Dec. 2025 was $0.000. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $0.00 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 (2026-06-25), Tianan Technology Group's current stock price is $ 1.01. Tianan Technology Group's E10 for the fiscal year that ended in Dec. 2025 was $0.00. Tianan Technology Group's Shiller PE Ratio of today is .


Tianan Technology Group  (OTCPK:TANAF) 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.


Tianan Technology Group E10 Related Terms


Tianan Technology Group E10 Historical Data

* Premium members only.

The historical data trend for Tianan Technology 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.

Tianan Technology Group E10 Chart

Tianan Technology Group Annual Data
Trend Dec21 Dec22 Dec23 Dec24 Dec25
E10
0.00 0.00 0.00 0.00 0.00

Tianan Technology Group Semi-Annual Data
Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
E10 Get a 7-Day Free Trial Premium Member Only 0.00 0.00 0.00 0.00 0.00

TANAF vs INGN, INFU, APYX: E10 Comparison

For the Medical Devices subindustry, Tianan Technology 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.


Tianan Technology Group Shiller PE Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Tianan Technology Group's Shiller PE Ratio distribution charts can be found below:

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


TANAF
15GF Score
Tianan Technology Group Ltd TANAF
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
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Tianan Technology 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, Tianan Technology Group's adjusted earnings per share data for the fiscal year that ended in Dec. 2025 was:

Adj_EPS=Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=0/115.8323*115.8323
=0.000

Current CPI (Dec. 2025) = 115.8323.

Tianan Technology Group does not have a history long enough to calculate E10. Therefore GuruFocus does not calculate it.

Frequently Asked Questions Learn more about E10 →
What does a E10 of $0.00 mean?
Tianan Technology Group (TANAF) has a E10 of $0.00 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Tianan Technology Group and its competitors.
Is Tianan Technology Group's E10 too high?
Tianan Technology Group's current E10 is $0.00. Overall, Tianan Technology Group has a GF Score™ of 15/100, reflecting its overall financial health beyond just this single metric.
How does Tianan Technology Group's E10 compare to INGN and INFU?
Tianan Technology Group's E10 of $0.00 can be compared against companies in the Medical Devices & Instruments 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 Medical Devices & Instruments company?
A good E10 depends on the Medical Devices & Instruments 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 Tianan Technology Group and its competitors. Tianan Technology Group's current E10 is $0.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tianan Technology Group stock overvalued right now?
Tianan Technology Group (TANAF) has a current E10 of $0.00. The current E10 is $0.00. Tianan Technology Group's overall GF Score™ is 15/100 with 3 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 Tianan Technology Group (TANAF), the current E10 is $0.00 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.

Tianan Technology Group Business Description

Address No. 525 Yuanjiang Road, 10th Floor, Building 5, Minhang District, Shanghai, CHN
Tianan Technology Group Ltd is focused on graphene production enterprises and is engaged in the health therapy industry. It utilizes the far-infrared heat therapy characteristics of graphene, which is incorporated into its products. Its products include Graphene Far Infrared Energy Room, Pure Graphene Heating Music Blanket, Graphene Pillow, Pure Graphene Heating Knee Compartment, Pure Graphene Heating Knee Pads, Pure Graphene Eye Mask, Intelligent graphene suspension moxibustion instrument, and Pure Graphene Eye Mask. The Company operates in one reportable business segment: Healthcare.
15GF Score

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

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