QBAK (Qualstar) E10: $-1.53 (As of Sep. 2023)


QBAK Qualstar Corp QBAK
12 GF Score
Price $3.40
View Full Analysis

What is Qualstar E10?

Qualstar QBAK 12 E10 is $-1.53 as of Sep. 2023. GuruFocus rates QBAK with a GF Score™ of 12/100.

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.

Qualstar's adjusted earnings per share data for the three months ended in Sep. 2023 was $0.033. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $-1.53 for the trailing ten years ended in Sep. 2023.

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.

As of today (2026-06-25), Qualstar's current stock price is $3.40. Qualstar's E10 for the quarter that ended in Sep. 2023 was $-1.53. Qualstar's Shiller PE Ratio of today is .


Qualstar  (OTCPK:QBAK) 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.


Qualstar E10 Related Terms


Qualstar E10 Historical Data

* Premium members only.

The historical data trend for Qualstar'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.

Qualstar E10 Chart

Qualstar Annual Data
Trend Jun10 Jun11 Jun12 Jun13 Jun14 Jun15 Dec16 Dec17 Dec18 Dec19
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only -1.77 -1.77 -1.69 -1.54 -1.35

Qualstar Quarterly Data
Dec15 Mar16 Jun16 Sep16 Dec16 Mar17 Jun17 Sep17 Dec17 Mar18 Jun18 Sep18 Dec18 Mar19 Jun19 Sep19 Dec19 Mar20 Sep22 Sep23
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 -1.39 -1.35 -1.32 -1.48 -1.53

QBAK vs POLA, OZSC, XPON: E10 Comparison

For the Electrical Equipment & Parts subindustry, Qualstar'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.


Qualstar Shiller PE Ratio vs Industrial Products Industry

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

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


QBAK
12GF Score
Qualstar Corp QBAK
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Qualstar 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, Qualstar's adjusted earnings per share data for the three months ended in Sep. 2023 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Sep. 2023 (Change)*Current CPI (Sep. 2023)
=0.033/307.7890*307.7890
=0.033

Current CPI (Sep. 2023) = 307.7890.

Qualstar Quarterly Data

per share eps CPI Adj_EPS
201012 -0.040 219.179 -0.056
201103 -0.080 223.467 -0.110
201106 -0.020 225.722 -0.027
201109 0.009 226.889 0.012
201112 -0.160 225.672 -0.218
201203 -0.100 229.392 -0.134
201206 -0.440 229.478 -0.590
201209 -0.320 231.407 -0.426
201212 -0.280 229.601 -0.375
201303 -0.540 232.773 -0.714
201306 -0.580 233.504 -0.765
201309 -0.420 234.149 -0.552
201312 -0.040 233.049 -0.053
201403 -0.360 236.293 -0.469
201406 -0.120 238.343 -0.155
201409 -0.060 238.031 -0.078
201412 -0.040 234.812 -0.052
201503 -0.080 236.119 -0.104
201506 -0.033 238.638 -0.043
201509 -0.240 237.945 -0.310
201512 -0.060 236.525 -0.078
201603 -0.067 238.132 -0.087
201606 -0.053 241.018 -0.068
201609 -0.010 241.428 -0.013
201612 -0.067 241.432 -0.085
201703 0.010 243.801 0.013
201706 0.010 244.955 0.013
201709 -0.023 246.819 -0.029
201712 0.110 246.524 0.137
201803 0.093 249.554 0.115
201806 0.077 251.989 0.094
201809 0.067 252.439 0.082
201812 0.003 251.233 0.004
201903 0.023 254.202 0.028
201906 -0.003 256.143 -0.004
201909 0.010 256.759 0.012
201912 -0.033 256.974 -0.040
202003 -0.027 258.115 -0.032
202209 0.023 296.808 0.024
202309 0.033 307.789 0.033

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 $-1.53 mean?
Qualstar (QBAK) has a E10 of $-1.53 as of Sep. 2023. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Qualstar and its competitors.
Is Qualstar's E10 too high?
Qualstar's current E10 is $-1.53. Overall, Qualstar has a GF Score™ of 12/100, reflecting its overall financial health beyond just this single metric.
How does Qualstar's E10 compare to POLA and OZSC?
Qualstar's E10 of $-1.53 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 Qualstar and its competitors. Qualstar's current E10 is $-1.53. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Qualstar stock overvalued right now?
Qualstar (QBAK) has a current E10 of $-1.53. The current E10 is $-1.53. Qualstar's overall GF Score™ is 12/100. 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 Qualstar (QBAK), the current E10 is $-1.53 as of Sep. 2023. 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.

Qualstar Business Description

Address 1267 Flynn Road, Suite 105, Camarillo, CA, USA, 93012
Qualstar Corp is a U.S.-based provider of data storage systems marketed under the Qualstar brand and power solutions marketed under the N2Power brand. The company operates through the Data Storage segment, which generates the majority of its revenue. It manufactures automated magnetic tape libraries to store, retrieve, and manage electronic data for archive, backup, and recovery, and provides technical customer support services. The Power Supplies segment designs and markets high-efficiency switching power supplies for electronic equipment. The company utilizes contract manufacturers in Asia and sells its products globally through authorized resellers and directly to OEMs. It operates in North America, Europe, Asia Pacific, and others, with the majority of its revenue from North America.
12GF Score

Get the complete analysis for QBAK

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

$3.40
Price