DIALF (Dialight) E10: $-0.21 (As of Mar. 2026)


DIALF Dialight PLC DIALF
46 GF Score
Price $4.90
GF Value $1.67
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Dialight E10?

Dialight DIALF -9.51% 46 E10 is $-0.21 as of Mar. 2026. GuruFocus rates DIALF with a GF Score™ of 46/100 and a GF Value™ of $1.67 (Significantly Overvalued). The stock has 7 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.

Dialight's adjusted earnings per share data for the fiscal year that ended in Mar. 2026 was $0.010. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $-0.21 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was -141.00% 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 Dialight was 6.10% per year. The lowest was -141.00% per year. And the median was -4.70% per year.

As of today (2026-06-26), Dialight's current stock price is $ 4.90. Dialight's E10 for the fiscal year that ended in Mar. 2026 was $-0.21. Dialight's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Dialight was 92.50. The lowest was 12.47. And the median was 34.92.


Dialight  (OTCPK:DIALF) 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.

During the past 13 years, the highest Shiller P/E Ratio of Dialight was 92.50. The lowest was 12.47. And the median was 34.92.


Be Aware

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


Dialight E10 Related Terms


Dialight E10 Historical Data

* Premium members only.

The historical data trend for Dialight'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.

Dialight E10 Chart

Dialight Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Mar25 Mar26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.05 -0.01 -0.08 -0.19 -0.21

Dialight Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Sep24 Mar25 Sep25 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 -0.08 0.00 -0.19 0.00 -0.21

DIALF vs VRT, BE: E10 Comparison

For the Electrical Equipment & Parts subindustry, Dialight'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.


Dialight Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Dialight's Shiller PE Ratio distribution charts can be found below:

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


DIALF
46GF Score
Dialight PLC DIALF
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
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Dialight 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, Dialight's adjusted earnings per share data for the fiscal year that ended in Mar. 2026 was:

Adj_EPS=Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=0.01/140.8000*140.8000
=0.010

Current CPI (Mar. 2026) = 140.8000.

Dialight Annual Data

per_share_eps CPI Adj_EPS
201612 -0.104 102.200 -0.143
201712 0.065 105.000 0.087
201812 0.204 107.100 0.268
201912 -0.649 108.500 -0.842
202012 -0.331 109.400 -0.426
202112 0.012 114.700 0.015
202212 0.015 125.300 0.017
202312 -0.396 130.500 -0.427
202503 -0.344 136.100 -0.356
202603 0.010 140.800 0.010

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 $-0.21 mean?
Dialight (DIALF) has a E10 of $-0.21 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Dialight and its competitors.
Is Dialight's E10 too high?
Dialight's current E10 is $-0.21. Overall, Dialight has a GF Score™ of 46/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Dialight's E10 compare to VRT and BE?
Dialight's E10 of $-0.21 can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good E10 depends on the Industrial Products 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 Dialight and its competitors. Dialight's current E10 is $-0.21. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Dialight stock overvalued right now?
Based on GuruFocus' analysis, Dialight (DIALF) is currently considered Significantly Overvalued. The stock's GF Value™ is $1.67, compared to a current price of $4.90 — trading 193.4% above its estimated fair value. The current E10 is $-0.21. Dialight's overall GF Score™ is 46/100 with 7 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 Dialight (DIALF), the current E10 is $-0.21 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 Dialight (DIALF) Overvalued in 2026?

Based on GuruFocus' analysis, Dialight stock appears to be overvalued. The current stock price of $4.90 is trading 193.4% above its estimated GF Value™ of $1.67. GuruFocus considers Dialight to be Significantly Overvalued.

Key valuation signals for DIALF:

  • E10: $-0.21
  • GF Value™: $1.67 vs. price of $4.90 (193.4% above fair value)
  • GF Score™: 46/100 with 7 warning signs

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


Dialight Business Description

Other Exchanges DIAl:UKDIA:UK3HQ:Germany
Address 60 Petty France, London, GBR, SW1H 9EU
Dialight PLC manufactures and sells light-emitting diode (LED) lighting fixtures for use in hazardous and industrial locations. It provides lighting products to customers in industrial sectors including steel foundries, pulp and paper mills, automotive manufacturers, utility, and wastewater plants, and food and beverage processing plants. In addition, it provides specialist lighting products for hazardous industrial sites, including the oil and gas and mining sectors. Its segments are Lighting, Signals, and Components. The majority of the revenue is derived from the sale of LED lighting solutions and anti-collision obstruction lighting. Geographically it derives the majority of its revenue from North America.
46GF Score

Get the complete analysis for DIALF

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

$4.90
Price
$1.67
GF Value