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Westport Fuel Systems Inc (NAS:WPRT)
Shiller P/E Ratio
(As of Today)

As of today, Westport Fuel Systems Inc's current share price is $1.44. Westport Fuel Systems Inc's E10 for the quarter that ended in Jun. 2016 was $-1.21. Westport Fuel Systems Inc's Shiller P/E Ratio for today is .

During the past 13 years, Westport Fuel Systems Inc's highest Shiller P/E Ratio was 8.06. The lowest was -33.70. And the median was 7.06.

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.

Westport Fuel Systems Inc's adjusted earnings per share data for the three months ended in Jun. 2016 was $0.040. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $-1.21 for the trailing ten years ended in Jun. 2016.


Definition

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.

Westport Fuel Systems Inc's Shiller P/E Ratio for today is calculated as

Shiller P/E Ratio=Share Price/E10
=1.44/-1.21
=

* All numbers are in millions except for per share data and ratio. All numbers are in their own currency.

Westport Fuel Systems Inc's E10 for the fiscal year that ended in Dec15 is calculated as:

For example, Westport Fuel Systems Inc's adjusted earnings per share data for the three months ended in Jun. 2016 was:

Adj_EPS=Earnigns per Share/CPI of Jun. 2016 (Change)*Current CPI (Jun. 2016)
=0.04/241.038*241.038
=0.040

Current CPI (Jun. 2016) = 241.038.

Westport Fuel Systems Inc Quarterly Data

201403201406201409201412201503201506201509201512201603201606
per share eps -0.380-0.560-0.400-1.030-0.270-0.320-0.580-0.360-0.3600.040
CPI 236.293238.343238.031234.812236.119238.638237.945236.525238.132241.038
Adj_EPS -0.388-0.566-0.405-1.057-0.276-0.323-0.588-0.367-0.3640.040
201109201112201203201206201209201212201303201306201309201312
per share eps -0.270-0.300-0.440-0.110-0.590-0.690-0.570-0.610-0.530-1.500
CPI 226.889225.672229.392229.478231.407229.601232.773233.504234.149233.049
Adj_EPS -0.287-0.320-0.462-0.116-0.615-0.724-0.590-0.630-0.546-1.551
200903200906200909200912201003201006201009201012201103201106
per share eps -0.350-0.250-0.250-0.200-0.320-0.200-0.160-0.310-0.320-0.380
CPI 212.709215.693215.969215.949217.631217.965218.439219.179223.467225.722
Adj_EPS -0.397-0.279-0.279-0.223-0.354-0.221-0.177-0.341-0.345-0.406
200609200612200703200706200709200712200803200806200809200812
per share eps -0.094-0.2400.055-0.197-0.1760.247-0.302-0.1280.019-0.230
CPI 202.900201.800205.352208.352208.490210.036213.528218.815218.783210.228
Adj_EPS -0.112-0.2870.065-0.228-0.2030.283-0.341-0.1410.021-0.264

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.


Related Terms

P/E Ratio, P/B Ratio, P/S Ratio, Price-to-Free-Cash-Flow ratio, E10


Historical Data

* All numbers are in millions except for per share data and ratio. All numbers are in their own currency.

Westport Fuel Systems Inc Annual Data

Mar06Mar07Mar08Mar09Mar10Mar11Dec12Dec13Dec14Dec15
ShillerPE 0.000.000.000.000.000.000.000.000.000.00

Westport Fuel Systems Inc Quarterly Data

Mar14Jun14Sep14Dec14Mar15Jun15Sep15Dec15Mar16Jun16
ShillerPE 0.000.000.000.000.000.000.000.000.000.00
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