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Westell Technologies Inc  (NAS:WSTL) Shiller PE Ratio: (As of Today)

As of today, Westell Technologies Inc's current share price is $4.30. Westell Technologies Inc's E10 for the quarter that ended in Sep. 2017 was $-0.75. Westell Technologies Inc's Shiller P/E Ratio for today is .

During the past years, Westell Technologies Inc's highest Shiller P/E Ratio was 63.00. The lowest was 0.00. And the median was 16.53.

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.

Westell Technologies Inc's adjusted earnings per share data for the three months ended in Sep. 2017 was $0.050. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $-0.75 for the trailing ten years ended in Sep. 2017.


Historical Data

* All numbers are in millions except for per share data and ratio. All numbers are in their local exchange's currency.

* Premium members only.

Westell Technologies Inc Annual Data

Mar08 Mar09 Mar10 Mar11 Mar12 Mar13 Mar14 Mar15 Mar16 Mar17
Shiller PE Ratio Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 15.24 48.77 0.00 0.00 0.00

Westell Technologies Inc Quarterly Data

Dec12 Mar13 Jun13 Sep13 Dec13 Mar14 Jun14 Sep14 Dec14 Mar15 Jun15 Sep15 Dec15 Mar16 Jun16 Sep16 Dec16 Mar17 Jun17 Sep17
Shiller PE Ratio 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 Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Competitive Comparison
* 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.


Calculation

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.

Westell Technologies Inc's Shiller P/E Ratio for today is calculated as

Shiller P/E Ratio=Share Price/ E10
=4.30/-0.75
=

* All numbers are in millions except for per share data and ratio. All numbers are in their local exchange's currency.

Westell Technologies Inc's E10 for the fiscal year that ended in Mar17 is calculated as:

For example, Westell Technologies Inc's adjusted earnings per share data for the three months ended in Sep. 2017 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Sep. 2017 (Change)*Current CPI (Sep. 2017)
=0.05/246.819*246.819
=0.050

Current CPI (Sep. 2017) = 246.819.

Westell Technologies Inc Quarterly Data

per_share_eps CPI Adj_EPS

Add all the adjusted EPS together and divide 10 will get our E10.


Explanation

Compared with the regular P/E ratio, which works poorly for cyclical businesses, the Shiller P/E smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller P/E should give similar results to regular P/E.

Compared with the P/S ratio, the Shiller P/E makes the comparison between different industries more meaningful.


Be Aware

The Shiller P/E assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, the Shiller P/E and P/S ratio will give false valuations.


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