Delta Electronics (TPE:2308) E10: NT$12.80 (As of Dec. 2025)


TPE:2308 Delta Electronics Inc TPE:2308
72 GF Score
Price NT$1,905.00
GF Value NT$628.15
Valuation Significantly Overvalued
! 1 Warning Sign
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What is Delta Electronics E10?

Delta Electronics TPE:2308 +5.25% 72 E10 is NT$12.80 as of Dec. 2025. GuruFocus rates TPE:2308 with a GF Score™ of 72/100 and a GF Value™ of NT$628.15 (Significantly Overvalued). The stock has 1 warning sign 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.

Delta Electronics's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$6.650. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$12.80 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Delta Electronics's average E10 Growth Rate was 14.20% per year. During the past 3 years, the average E10 Growth Rate was 8.60% per year. During the past 5 years, the average E10 Growth Rate was 9.50% 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 Delta Electronics was 10.60% per year. The lowest was 7.10% per year. And the median was 8.60% per year.

As of today (2026-06-29), Delta Electronics's current stock price is NT$1905.00. Delta Electronics's E10 for the quarter that ended in Dec. 2025 was NT$12.80. Delta Electronics's Shiller PE Ratio of today is 148.83.

During the past 13 years, the highest Shiller PE Ratio of Delta Electronics was 191.02. The lowest was 15.48. And the median was 29.94.


Delta Electronics  (TPE:2308) 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.

Delta Electronics's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=1905.00/12.80
=148.83

* 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 Delta Electronics was 191.02. The lowest was 15.48. And the median was 29.94.


Be Aware

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


Delta Electronics E10 Related Terms


Delta Electronics E10 Historical Data

* Premium members only.

The historical data trend for Delta Electronics'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.

Delta Electronics E10 Chart

Delta Electronics 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 8.94 10.00 10.67 11.21 12.80

Delta Electronics 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 11.21 11.54 11.97 12.44 12.80

TPE:2308 vs APH, GLW, TEL: E10 Comparison

For the Electronic Components subindustry, Delta Electronics'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.


Delta Electronics Shiller PE Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Delta Electronics's Shiller PE Ratio distribution charts can be found below:

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


TPE:2308
72GF Score
Delta Electronics Inc TPE:2308
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Delta Electronics 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, Delta Electronics'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)
=6.65/324.0540*324.0540
=6.650

Current CPI (Dec. 2025) = 324.0540.

Delta Electronics Quarterly Data

per share eps CPI Adj_EPS
201603 1.470 238.132 2.000
201606 1.650 241.018 2.218
201609 2.170 241.428 2.913
201612 1.880 241.432 2.523
201703 1.480 243.801 1.967
201706 1.630 244.955 2.156
201709 2.090 246.819 2.744
201712 1.810 246.524 2.379
201803 1.060 249.554 1.376
201806 1.260 251.989 1.620
201809 2.340 252.439 3.004
201812 2.310 251.233 2.980
201903 1.290 254.202 1.644
201906 3.660 256.143 4.630
201909 1.960 256.759 2.474
201912 1.940 256.974 2.446
202003 0.790 258.115 0.992
202006 2.920 257.797 3.670
202009 3.210 260.280 3.997
202012 2.850 260.474 3.546
202103 2.530 264.877 3.095
202106 2.920 271.696 3.483
202109 2.440 274.310 2.882
202112 2.390 278.802 2.778
202203 2.330 287.504 2.626
202206 2.930 296.311 3.204
202209 4.250 296.808 4.640
202212 3.030 296.797 3.308
202303 2.650 301.836 2.845
202306 3.130 305.109 3.324
202309 3.590 307.789 3.780
202312 3.430 306.746 3.624
202403 2.210 312.332 2.293
202406 3.820 314.175 3.940
202409 4.740 315.301 4.872
202412 2.750 315.605 2.824
202503 3.930 319.799 3.982
202506 5.360 322.561 5.385
202509 7.150 324.800 7.134
202512 6.650 324.054 6.650

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$12.80 mean?
Delta Electronics (TPE:2308) has a E10 of NT$12.80 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Delta Electronics and its competitors.
Is Delta Electronics' E10 too high?
Delta Electronics' current E10 is NT$12.80. Overall, Delta Electronics has a GF Score™ of 72/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Delta Electronics' E10 compare to APH and GLW?
Delta Electronics' E10 of NT$12.80 can be compared against companies in the Hardware 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 Hardware company?
A good E10 depends on the Hardware 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 Delta Electronics and its competitors. Delta Electronics's current E10 is NT$12.80. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Delta Electronics stock overvalued right now?
Based on GuruFocus' analysis, Delta Electronics (TPE:2308) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$628.15, compared to a current price of NT$1,905.00 — trading 203.3% above its estimated fair value. The current E10 is NT$12.80. Delta Electronics' overall GF Score™ is 72/100 with 1 warning sign 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 Delta Electronics (TPE:2308), the current E10 is NT$12.80 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 Delta Electronics (TPE:2308) Overvalued in 2026?

Based on GuruFocus' analysis, Delta Electronics stock appears to be overvalued. The current stock price of NT$1,905.00 is trading 203.3% above its estimated GF Value™ of NT$628.15. GuruFocus considers Delta Electronics to be Significantly Overvalued.

Key valuation signals for TPE:2308:

  • E10: NT$12.80
  • GF Value™: NT$628.15 vs. price of NT$1,905.00 (203.3% above fair value)
  • GF Score™: 72/100 with 1 warning sign

No single metric tells the full story. See the TPE:2308 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Delta Electronics Business Description

Address No. 186, Ruey Kuang Road, Neihu District, Taipei, TWN, 114501
Founded in 1971 and headquartered in Taiwan, Delta Electronics is a global leader in power and thermal solutions. The company offers a wide range of products, with end applications spanning consumer electronics, data centers, industrial equipment, electric vehicles, and renewable energy systems. Delta operates across four business segments: power electronics, mobility, automation, and infrastructure.
72GF Score

Get the complete analysis for TPE:2308

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

NT$1,905.00
Price
NT$628.15
GF Value