Sdi (TPE:2351) E10: NT$4.33 (As of Dec. 2025)


TPE:2351 Sdi Corp TPE:2351
74 GF Score
Price NT$212.50
GF Value NT$96.69
Valuation Significantly Overvalued
! 10 Warning Signs
View Full Analysis

What is Sdi E10?

Sdi TPE:2351 +7.59% 74 E10 is NT$4.33 as of Dec. 2025. GuruFocus rates TPE:2351 with a GF Score™ of 74/100 and a GF Value™ of NT$96.69 (Significantly Overvalued). 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.

Sdi's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.780. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$4.33 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Sdi's average E10 Growth Rate was -3.10% per year. During the past 3 years, the average E10 Growth Rate was 0.20% per year. During the past 5 years, the average E10 Growth Rate was 6.50% 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 Sdi was 12.70% per year. The lowest was 0.20% per year. And the median was 6.10% per year.

As of today (2026-06-30), Sdi's current stock price is NT$212.50. Sdi's E10 for the quarter that ended in Dec. 2025 was NT$4.33. Sdi's Shiller PE Ratio of today is 49.08.

During the past 13 years, the highest Shiller PE Ratio of Sdi was 49.58. The lowest was 10.81. And the median was 23.08.


Sdi  (TPE:2351) 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.

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

Shiller PE Ratio=Share Price/E10
=212.50/4.33
=49.08

* 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 Sdi was 49.58. The lowest was 10.81. And the median was 23.08.


Be Aware

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


Sdi E10 Related Terms


Sdi E10 Historical Data

* Premium members only.

The historical data trend for Sdi'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.

Sdi E10 Chart

Sdi 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 3.74 4.30 4.50 4.47 4.33

Sdi 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 4.47 4.48 4.41 4.34 4.33

TPE:2351 vs AMAT, LRCX, KLAC: E10 Comparison

For the Semiconductor Equipment & Materials subindustry, Sdi'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.


Sdi Shiller PE Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Sdi's Shiller PE Ratio distribution charts can be found below:

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


TPE:2351
74GF Score
Sdi Corp TPE:2351
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sdi 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, Sdi'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)
=0.78/324.0540*324.0540
=0.780

Current CPI (Dec. 2025) = 324.0540.

Sdi Quarterly Data

per share eps CPI Adj_EPS
201603 0.850 238.132 1.157
201606 0.980 241.018 1.318
201609 1.050 241.428 1.409
201612 1.110 241.432 1.490
201703 0.850 243.801 1.130
201706 0.980 244.955 1.296
201709 1.170 246.819 1.536
201712 0.930 246.524 1.222
201803 0.850 249.554 1.104
201806 1.330 251.989 1.710
201809 1.250 252.439 1.605
201812 1.120 251.233 1.445
201903 0.840 254.202 1.071
201906 0.860 256.143 1.088
201909 0.690 256.759 0.871
201912 0.310 256.974 0.391
202003 0.270 258.115 0.339
202006 0.380 257.797 0.478
202009 0.510 260.280 0.635
202012 0.760 260.474 0.946
202103 1.020 264.877 1.248
202106 1.230 271.696 1.467
202109 1.300 274.310 1.536
202112 1.130 278.802 1.313
202203 1.380 287.504 1.555
202206 1.540 296.311 1.684
202209 1.400 296.808 1.529
202212 0.840 296.797 0.917
202303 1.210 301.836 1.299
202306 1.110 305.109 1.179
202309 1.140 307.789 1.200
202312 0.610 306.746 0.644
202403 0.900 312.332 0.934
202406 1.200 314.175 1.238
202409 0.860 315.301 0.884
202412 0.740 315.605 0.760
202503 0.620 319.799 0.628
202506 -0.230 322.561 -0.231
202509 0.460 324.800 0.459
202512 0.780 324.054 0.780

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$4.33 mean?
Sdi (TPE:2351) has a E10 of NT$4.33 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Sdi and its competitors.
Is Sdi's E10 too high?
Sdi's current E10 is NT$4.33. Overall, Sdi has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sdi's E10 compare to AMAT and LRCX?
Sdi's E10 of NT$4.33 can be compared against companies in the Semiconductors 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 Semiconductors company?
A good E10 depends on the Semiconductors 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 Sdi and its competitors. Sdi's current E10 is NT$4.33. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sdi stock overvalued right now?
Based on GuruFocus' analysis, Sdi (TPE:2351) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$96.69, compared to a current price of NT$212.50 — trading 119.8% above its estimated fair value. The current E10 is NT$4.33. Sdi's overall GF Score™ is 74/100 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 Sdi (TPE:2351), the current E10 is NT$4.33 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 Sdi (TPE:2351) Overvalued in 2026?

Based on GuruFocus' analysis, Sdi stock appears to be overvalued. The current stock price of NT$212.50 is trading 119.8% above its estimated GF Value™ of NT$96.69. GuruFocus considers Sdi to be Significantly Overvalued.

Key valuation signals for TPE:2351:

  • E10: NT$4.33
  • GF Value™: NT$96.69 vs. price of NT$212.50 (119.8% above fair value)
  • GF Score™: 74/100 with 10 warning signs

No single metric tells the full story. See the TPE:2351 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sdi Business Description

Address No. 260, Chang Nan Road, Section 2, Chang Hua, TWN
Sdi Corp manufactures and distributes stationary products such as stapler, correction tapes, clips, and other office stationeries. The company's segment includes the Electronic segment and Stationery segment. It generates maximum revenue from the Electronic segment. Geographically, it derives a majority of its revenue from China.
74GF Score

Get the complete analysis for TPE:2351

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

NT$212.50
Price
NT$96.69
GF Value