Bridgeline Digital (STU:BL43) E10: €-31.56 (As of Mar. 2026)


STU:BL43 Bridgeline Digital Inc STU:BL43
56 GF Score
Price €1.00
GF Value €0.90
! 3 Warning Signs
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What is Bridgeline Digital E10?

Bridgeline Digital STU:BL43 +3.11% 56 E10 is €-31.56 as of Mar. 2026. GuruFocus rates STU:BL43 with a GF Score™ of 56/100 and a GF Value™ of €0.90. 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.

Bridgeline Digital's adjusted earnings per share data for the three months ended in Mar. 2026 was €-0.035. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €-31.56 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was 41.20% per year. During the past 5 years, the average E10 Growth Rate was 22.90% per year. During the past 10 years, the average E10 Growth Rate was 14.40% 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 Bridgeline Digital was 41.20% per year. The lowest was -0.90% per year. And the median was 10.80% per year.

As of today (2026-07-01), Bridgeline Digital's current stock price is €0.995. Bridgeline Digital's E10 for the quarter that ended in Mar. 2026 was €-31.56. Bridgeline Digital's Shiller PE Ratio of today is .


Bridgeline Digital  (STU:BL43) 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.


Bridgeline Digital E10 Related Terms


Bridgeline Digital E10 Historical Data

* Premium members only.

The historical data trend for Bridgeline Digital'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.

Bridgeline Digital E10 Chart

Bridgeline Digital Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only -213.58 -256.85 -206.90 -154.18 -43.55

Bridgeline Digital 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 -133.35 -120.63 -43.55 -34.26 -31.56

STU:BL43 vs AIFA, CHOW, TAOP: E10 Comparison

For the Software - Infrastructure subindustry, Bridgeline Digital'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.


Bridgeline Digital Shiller PE Ratio vs Software Industry

For the Software industry and Technology sector, Bridgeline Digital's Shiller PE Ratio distribution charts can be found below:

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


STU:BL43
56GF Score
Bridgeline Digital Inc STU:BL43
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
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Bridgeline Digital 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, Bridgeline Digital'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)
=-0.035/330.2130*330.2130
=-0.035

Current CPI (Mar. 2026) = 330.2130.

Bridgeline Digital Quarterly Data

per share eps CPI Adj_EPS
201606 -45.835 241.018 -62.797
201609 -44.550 241.428 -60.933
201612 -5.688 241.432 -7.780
201703 -6.545 243.801 -8.865
201706 -4.450 244.955 -5.999
201709 -4.195 246.819 -5.612
201712 -5.070 246.524 -6.791
201803 -7.258 249.554 -9.604
201806 -52.884 251.989 -69.301
201809 -10.284 252.439 -13.452
201812 -20.103 251.233 -26.423
201903 -36.745 254.202 -47.732
201906 3.151 256.143 4.062
201909 0.163 256.759 0.210
201912 -0.729 256.974 -0.937
202003 0.154 258.115 0.197
202006 -0.391 257.797 -0.501
202009 0.204 260.280 0.259
202012 -0.214 260.474 -0.271
202103 -0.092 264.877 -0.115
202106 -0.506 271.696 -0.615
202109 -0.340 274.310 -0.409
202112 0.053 278.802 0.063
202203 0.027 287.504 0.031
202206 0.038 296.311 0.042
202209 -0.051 296.808 -0.057
202212 -0.009 296.797 -0.010
202303 -0.047 301.836 -0.051
202306 -0.065 305.109 -0.070
202309 -0.731 307.789 -0.784
202312 -0.055 306.746 -0.059
202403 -0.055 312.332 -0.058
202406 -0.028 314.175 -0.029
202409 -0.036 315.301 -0.038
202412 -0.057 315.605 -0.060
202503 -0.092 319.799 -0.095
202506 -0.061 322.561 -0.062
202509 -0.026 324.800 -0.026
202512 -0.009 324.054 -0.009
202603 -0.035 330.213 -0.035

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 €-31.56 mean?
Bridgeline Digital (STU:BL43) has a E10 of €-31.56 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Bridgeline Digital and its competitors.
Is Bridgeline Digital's E10 too high?
Bridgeline Digital's current E10 is €-31.56. Overall, Bridgeline Digital has a GF Score™ of 56/100, reflecting its overall financial health beyond just this single metric.
How does Bridgeline Digital's E10 compare to AIFA and CHOW?
Bridgeline Digital's E10 of €-31.56 can be compared against companies in the Software 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 Software company?
A good E10 depends on the Software 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 Bridgeline Digital and its competitors. Bridgeline Digital's current E10 is €-31.56. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Bridgeline Digital stock overvalued right now?
Bridgeline Digital (STU:BL43) has a current E10 of €-31.56. The stock's GF Value™ is €0.90, compared to a current price of €1.00 — trading 10.6% above its estimated fair value. The current E10 is €-31.56. Bridgeline Digital's overall GF Score™ is 56/100 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 Bridgeline Digital (STU:BL43), the current E10 is €-31.56 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 Bridgeline Digital (STU:BL43) Overvalued in 2026?

Based on GuruFocus' analysis, Bridgeline Digital stock appears to be overvalued. The current stock price of €1.00 is trading 10.6% above its estimated GF Value™ of €0.90.

Key valuation signals for STU:BL43:

  • E10: €-31.56
  • GF Value™: €0.90 vs. price of €1.00 (10.6% above fair value)
  • GF Score™: 56/100 with 3 warning signs

No single metric tells the full story. See the STU:BL43 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Bridgeline Digital Business Description

Other Exchanges BLIN:USABL43:Germany
Address 100 Sylvan Road, Suite G700, Woburn, MA, USA, 01801
Bridgeline Digital Inc is a AI-powered marketing technology company that offers a suite of products that help companies grow online revenue by driving more traffic to their websites, converting more visitors to purchasers, and increasing average order value. Company software is available through a cloud-based Software as a Service (SaaS) model. It helps to maximize the performance of critical websites, intranets, and online stores. The company generates revenue from digital engagement services, subscription, perpetual licenses, maintenance, and hosting. Geographically, it derives a majority of revenue from the United States.
56GF Score

Get the complete analysis for STU:BL43

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

€1.00
Price
€0.90
GF Value