v2.4.0.6
Stock-based Compensation (Tables)
9 Months Ended
Apr. 28, 2012
Summary of Total Compensation Expense and Associated Income Tax Benefit Recognized Related to Stock-Based Compensation Arrangements

A summary of the total compensation expense and associated income tax benefit recognized related to stock-based compensation arrangements is as follows:

 

    Three Months Ended     Nine Months Ended  
    April 28,     April 30,     April 28,     April 30,  
    2012     2011     2012     2011  
    (millions)  
Compensation expense   $ 6.1     $ 4.2     $ 21.2     $ 12.8  
Income tax benefit   $ (2.3 )   $ (1.7 )   $ (8.0 )   $ (5.0 )
Weighted-average Assumptions used to Estimate Fair Value of Stock Options Granted

The Company’s weighted-average assumptions used to estimate the fair value of stock options granted during the nine months ended April 28, 2012 and April 30, 2011 are presented as follows:

 

    Nine Months Ended  
    April 28,
2012
    April 30,
2011
 
Expected term (years)     3.9       3.9  
Expected volatility     41.7 %     52.4 %
Risk-free interest rate     0.9 %     1.3 %
Expected dividend yield     0 %     0 %
Weighted-average grant date fair value   $ 4.73     $ 4.43  
Summary of Stock Option Activity Under All Plans

A summary of the stock option activity under all plans during the nine months ended April 28, 2012is as follows:

 

    April 28, 2012  
    Number of
Shares
    Weighted-
Average
Exercise Price
    Weighted-
Average
Remaining
Contractual
Terms
    Aggregate
Intrinsic 
Value (a)
 
    (thousands)           (years)     (millions)  
Options outstanding- July 31, 2011     13,829.6     $ 8.46       6.4     $ 106.4  
Granted     3,042.4       13.19       0       0  
Exercised     (1,615.5 )     7.91       0       0  
Cancelled/Forfeited     (306.7 )     11.29       0       0  
Options outstanding – April 28, 2012     14,949.8     $ 9.42       6.4     $ 169.3  
                                 
Options vested and expected to vest at April 28, 2012 (b)     14,440.9     $ 9.77       6.4     $ 164.6  
Options exercisable at April 28, 2012     7,146.4     $ 7.23       4.4     $ 96.5  

 

 

(a) The intrinsic value is the amount by which the market price at the end of the period of the underlying share of stock exceeds the exercise price of the stock option.

(b) The number of options expected to vest takes into consideration estimated expected forfeitures.

Summary of Restricted Equity Awards Activity

A summary of Restricted Equity Awards activity during the nine months ended April 28, 2012 is as follows:

 

    Service-based 
Restricted Equity Awards
    Performance-based 
Restricted Equity Awards
    Market-based
Restricted Equity Awards
 
    Number of
Shares
    Weighted-
Average
Grant Date
Fair Value
Per Share
    Number of
Shares
    Weighted-
Average
Grant Date
Fair Value
Per Share
    Number of
Shares
    Weighted-
Average
Grant Date
Fair Value
Per Share
 
    (thousands)           (thousands)           (thousands)        
Nonvested at July 31, 2011     922.3     $ 12.64       1,352.8     $ 12.23       437.0     $ 12.34  
Granted     705.9       14.14       574.6       12.74       54.8       12.33  
Vested     (248.3 )     11.59       0       0       0       0  
Cancelled/Forfeited     (224.7 )     13.21       (392.5 )     11.11       (154.3 )     10.90  
Nonvested at April 28, 2012     1,155.2     $ 13.67       1,534.9     $ 12.71       337.5     $ 13.00  
Total Unrecognized Compensation and Weighted-average Years Expected to be Recognized
    Service-based
Restricted Equity Awards
    Performance-based
Restricted Equity Awards
    Market-based
Restricted Equity Awards
 
                   
Total unrecognized compensation at April 28, 2012 (millions)   $ 8.6     $ 12.0     $ 2.6  
Weighted-average years expected to be recognized over (years)     3.9       1.7       1.6