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Alkermes PLC (NAS:ALKS)
Shiller P/E Ratio
0.00 (As of Today)

As of today, Alkermes PLC's current share price is $50.67. Alkermes PLC's E10 for the quarter that ended in Sep. 2014 was $-0.17. Alkermes PLC's Shiller P/E Ratio for today is 0.00.

ALKS' s 10-Year Shiller P/E Ratio Range
Min: 28.68   Max: 394.67
Current: 0

28.68
394.67

During the past 13 years, Alkermes PLC's highest Shiller P/E Ratio was 394.67. The lowest was 28.68. And the median was 56.25.

ALKS's Shiller P/E Ratiois ranked higher than
56% of the 988 Companies
in the Global Biotechnology industry.

( Industry Median: 9999.00 vs. ALKS: 0.00 )

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.

Alkermes PLC's adjusted earnings per share data for the three months ended in Sep. 2014 was $-0.270. Since most companies do not have as long as 10 years history, here we use 6 years to calculate. Add all the adjusted EPS for the past 6 years together and divide 6 will get our E10, which is $-0.17 for the trailing six years ended in Sep. 2014.


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.

Alkermes PLC's Shiller P/E Ratio for today is calculated as

Shiller P/E Ratio=Share Price/E10
=50.67/-0.17
=

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

Alkermes PLC's E10 for the fiscal year that ended in Mar13 is calculated as:

For example, Alkermes PLC's adjusted earnings per share data for the three months ended in Sep. 2014 was:

Adj_EPS=Earnigns per Share/CPI of Sep. 2014*CPI of Current
=-0.27/238.031*238.21
=-0.270

Since most companies do not have as long as 10 years history, here we use 6 years to calculate:

Current CPI = 238.21.

Alkermes PLC Quarterly Data

201203201206201209201212201303201306201309201403201406201409
per share eps -0.4880.170-0.1300.1200.0210.050-0.060-0.1700.020-0.270
CPI 229.392229.478231.407229.601232.773233.504234.149236.293238.343238.031
Adj_EPS -0.5070.176-0.1340.1240.0210.051-0.061-0.1710.020-0.270
200909200912201003201006201009201012201103201106201109201112
per share eps -0.090-0.070-0.147-0.140-0.080-0.120-0.136-0.140-0.220-0.110
CPI 215.969215.949217.631217.965218.439219.179223.467225.722226.889225.672
Adj_EPS -0.099-0.077-0.161-0.153-0.087-0.130-0.145-0.148-0.231-0.116
200809200812200903200906
per share eps 0.0201.180-0.143-0.110
CPI 218.783210.228212.709215.693
Adj_EPS 0.0221.337-0.160-0.121

Add all the adjusted EPS together and divide 6 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.

Alkermes PLC Annual Data

Mar04Mar05Mar06Mar07Mar08Mar09Mar10Mar11Mar12Mar13
ShillerPE -13.09-8.68-23.74-18.102.92106.9443.1833.3778.7793.66

Alkermes PLC Quarterly Data

Mar12Jun12Sep12Dec12Mar13Jun13Sep13Mar14Jun14Sep14
ShillerPE 78.7763.8786.8173.7693.66116.36150.470.000.000.00
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