1&1

1&1 Rule of 40

The Rule of 40 of 1&1 (1U1.DE) as of Nov 1, 2026 is 5.73 %. In the previous year, Rule of 40 was 6.82 % — a change of -15.92% (lower).

Rule of 40

5.73 %

YoY

-15.92%

Last updated:

Rule of 40 of 1&1 is 2025 5.73 % . Rule of 40 of 1&1 was 2024 6.82 % . It decreases by -15.92% lower compared to the previous year.

The 1&1 Rule of 40 history

  • 3 Years

  • 10 Years

  • 25 Years

  • Max

Rule of 40
Date
Rule of 40
Jan 1, 2018
45.72 EUR
Jan 1, 2019
14.72 EUR
Jan 1, 2020
16.39 EUR
Jan 1, 2021
22.08 EUR
Jan 1, 2022
20.46 EUR
Jan 1, 2023
14.48 EUR
Jan 1, 2024
6.82 EUR
Jan 1, 2025
5.73 EUR
The 1&1 Rule of 40 history
YEARRule of 40YoY
5.73 %-15.92%
6.82 %-52.91%
14.48 %-29.21%
20.46 %-7.32%
22.08 %+34.70%
16.39 %+11.34%
14.72 %-67.80%
45.72 %-85.33%
311.74 %+1,380.74%
21.05 %-83.60%
128.34 %—

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1&1 Stock analysis

What does 1&1 do? 1&1 AG is a German company that operates in the telecommunications and internet services sectors. The company was founded in 1988 under the name "BTX-Partner" and started selling computers and access to the BTX network of the German Federal Post Office. In 1992, the company was renamed to 1&1 and began selling internet access. Over the following years, 1&1 expanded its offerings to include web hosting, domain registrations, and online marketing solutions. A significant milestone for the company was the acquisition of Schlund + Partner in 1999, which was considered a leading German domain registrar. This allowed 1&1 to expand its portfolio and offer customers not only internet access but also web hosting, domains, and online marketing solutions. Today, 1&1 AG is a subsidiary of United Internet AG and serves over 13 million customers. The company offers a variety of products and services, including DSL, Wi-Fi, cable, and fiber internet access, cloud services for businesses, online storage, and server solutions. In the mobile services sector, 1&1 offers a wide range of mobile plans for both private and business customers, available with or without smartphones. A notable feature is that the company also offers mobile plans with unlimited internet usage without throttling. In addition to its core business areas, 1&1 also offers online marketing solutions, ranging from search engine optimization and online advertising to social media marketing and web design. Another business field of 1&1 is cloud computing. The company offers various solutions for businesses and private customers, including virtual servers, dedicated servers, and online storage. In recent years, 1&1 has focused on expanding its cloud platform. The company's goal is to provide a complete IT infrastructure from the cloud that customers can use flexibly and scalably. Overall, 1&1 is a company specialized in providing internet and telecommunications services. With its products and services, the company serves both private and business customers and is a significant player in many areas of the German market. Thanks to its long-standing experience and broad portfolio, 1&1 is one of the leading companies in the industry. 1&1 is one of the most popular companies on Eulerpool.

Frequently Asked Questions about 1&1 stock

Rule of 40 of 1&1 is 5.73 % in 2025.

On Eulerpool you can find the complete historical development of Rule of 40 1&1 since 2006 – with annual values, charts, and detailed analysis.

The Rule of 40 states that a company's revenue growth rate plus profit margin should exceed 40%. It is widely used to evaluate SaaS and high-growth companies.

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Quality — 1&1

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