Qualstar

Qualstar Rule of 40

The Rule of 40 of Qualstar (QBAK) as of Oct 28, 2026 is -23.17 %. In the previous year, Rule of 40 was -30.07 % — a change of -22.95% (higher).

Rule of 40

-23.17 %

YoY

-22.95%

Last updated:

Rule of 40 of Qualstar is 2025 -23.17 % . Rule of 40 of Qualstar was 2024 -30.07 % . It decreases by -22.95% higher compared to the previous year.

The Qualstar Rule of 40 history

  • 3 Years

  • 10 Years

  • 25 Years

  • Max

Rule of 40
Date
Rule of 40
Jan 1, 2018
27.11 USD
Jan 1, 2019
9.37 USD
Jan 1, 2020
-55.32 USD
Jan 1, 2021
12.20 USD
Jan 1, 2022
8.37 USD
Jan 1, 2023
9.15 USD
Jan 1, 2024
-30.07 USD
Jan 1, 2025
-23.17 USD
The Qualstar Rule of 40 history
YEARRule of 40YoY
-23.17 %-22.95%
-30.07 %-428.63%
9.15 %+9.38%
8.37 %-31.40%
12.20 %-122.04%
-55.32 %-690.20%
9.37 %-65.42%
27.11 %+41.39%
19.17 %-170.74%
-27.10 %+15.72%
-23.42 %—

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Qualstar Stock analysis

What does Qualstar do? Qualstar Corp. generates revenue through its Power Supplies segment, which designs, manufactures, and sells open frame switching power supplies to original equipment manufacturers across communications networking, industrial, gaming, test equipment, LED/lighting, and medical markets. The Data Storage segment contributes by offering automated magnetic tape libraries for data protection and archive storage, primarily serving network computing environments. These products target original equipment manufacturers and organizations requiring data management solutions in networked systems. The company's power supply products cater to diverse applications including communications networking, industrial, gaming, test equipment, LED/lighting, and medical sectors. Its storage solutions are specifically designed for recording, retrieving, and managing electronic data within networked computing environments, fulfilling needs for data protection and archival storage. The firm's product portfolio directly addresses the requirements of original equipment manufacturers and network computing entities through its specialized hardware offerings. Qualstar is one of the most popular companies on Eulerpool.

Frequently Asked Questions about Qualstar stock

Rule of 40 of Qualstar is -23.17 % in 2025.

On Eulerpool you can find the complete historical development of Rule of 40 Qualstar 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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