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EARNINGS PER COMMON SHARE
 12 Months Ended
Dec. 31, 2011
EARNINGS PER COMMON SHARE

NOTE 8—EARNINGS PER COMMON SHARE

The following table sets forth the computation of basic and diluted earnings per share:

 

In thousands, except share and per share data

  
    Years Ended December 31,  
    2011      2010      2009  

Numerator:

        

Numerator for basic earnings per share net income attributable to Stericycle, Inc.

   $ 234,751       $ 207,879       $ 175,691   
 

 

 

     

 

 

     

 

 

  

Denominator:

        

Denominator for basic earnings per share-weighted average shares

     85,467,421         85,057,775         84,769,912   

Effect of diluted securities:

        

Employee stock options

     1,900,291         1,904,876         1,974,091   
 

 

 

     

 

 

     

 

 

  

Denominator for diluted earnings per share-adjusted weighted average shares and after assumed exercises

     87,367,712         86,962,651         86,744,003   
 

 

 

     

 

 

     

 

 

  

Earnings per share—Basic

   $ 2.75       $ 2.44       $ 2.07   
 

 

 

     

 

 

     

 

 

  

Earnings per share—Diluted

   $ 2.69       $ 2.39       $ 2.03   
 

 

 

     

 

 

     

 

 

  

For additional information regarding outstanding employee stock options, see Note 6—Stock Based Compensation to the Consolidated Financial Statements.

In 2011, 2010 and 2009, options to purchase 879,266 shares, 133,535 shares and 2,218,914 shares, respectively, at exercise prices of $77.00-$94.24, $51.55-$80.92 and $46.56-$60.53, respectively, were not included in the computation of diluted earnings per share (“EPS”) because the effect would have been anti-dilutive.