| 
                 
                    Closing price on 6/17/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.70 | 
                 
                
                    | High | 
                    7.70 | 
                 
                
                    | Low | 
                    7.30 | 
                     
                
                    | Volume | 
                    102,020 | 
                                 
                
                    | Split-adjusted Price | 
                    6.67 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
QCG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/17/2013
             | 
            
                -0.10 / -1.33%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.30
             |                           
            
                7.40
             | 
            
                7.40
             |                     
            
                6.67
             |                                 
            
                102,020
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2013
             | 
            
                +0.20 / +2.74%
             |             
            
                7.30
             |           
            
                7.50
             |               
            
                7.30
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                6.76
             |                                 
            
                41,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/13/2013
             | 
            
                -0.30 / -3.95%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                6.58
             |                                 
            
                201,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2013
             | 
            
                -0.10 / -1.30%
             |             
            
                7.70
             |           
            
                7.80
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                6.85
             |                                 
            
                143,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2013
             | 
            
                -0.50 / -6.10%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                6.94
             |                                 
            
                159,110
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2013
             | 
            
                -0.30 / -3.53%
             |             
            
                8.50
             |           
            
                8.50
             |               
            
                8.00
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                7.39
             |                                 
            
                246,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2013
             | 
            
                +0.30 / +3.66%
             |             
            
                8.70
             |           
            
                8.70
             |               
            
                8.30
             |                           
            
                8.50
             | 
            
                8.50
             |                     
            
                7.66
             |                                 
            
                317,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/6/2013
             | 
            
                +0.50 / +6.49%
             |             
            
                7.80
             |           
            
                8.20
             |               
            
                7.70
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                7.39
             |                                 
            
                339,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2013
             | 
            
                -0.10 / -1.28%
             |             
            
                7.70
             |           
            
                7.80
             |               
            
                7.60
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                6.94
             |                                 
            
                81,060
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2013
             | 
            
                +0.10 / +1.30%
             |             
            
                7.70
             |           
            
                7.80
             |               
            
                7.60
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                7.03
             |                                 
            
                65,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/3/2013
             | 
            
                -0.20 / -2.53%
             |             
            
                7.80
             |           
            
                7.90
             |               
            
                7.60
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                6.94
             |                                 
            
                54,270
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2013
             | 
            
                +0.40 / +5.33%
             |             
            
                7.40
             |           
            
                8.00
             |               
            
                7.40
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                7.12
             |                                 
            
                424,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/30/2013
             | 
            
                +0.30 / +4.17%
             |             
            
                6.90
             |           
            
                7.50
             |               
            
                6.90
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                6.76
             |                                 
            
                218,220
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                7.10
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                6.49
             |                                 
            
                59,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.40
             |               
            
                7.10
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                6.49
             |                                 
            
                87,190
             |            
            
                 
             |                                       
         
    
        
            | 
                5/27/2013
             | 
            
                +0.40 / +5.88%
             |             
            
                6.90
             |           
            
                7.20
             |               
            
                6.90
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                6.49
             |                                 
            
                246,130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.13
             |                                 
            
                36,230
             |            
            
                 
             |                                       
         
    
        
            | 
                5/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.13
             |                                 
            
                37,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/22/2013
             | 
            
                -0.10 / -1.45%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.13
             |                                 
            
                65,230
             |            
            
                 
             |                                       
         
    
        
            | 
                5/21/2013
             | 
            
                +0.10 / +1.47%
             |             
            
                6.70
             |           
            
                6.90
             |               
            
                6.70
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                113,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/20/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.70
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.13
             |                                 
            
                30,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.70
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.13
             |                                 
            
                44,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.13
             |                                 
            
                57,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.70
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.13
             |                                 
            
                29,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2013
             | 
            
                -0.10 / -1.45%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.70
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.13
             |                                 
            
                20,460
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2013
             | 
            
                +0.10 / +1.47%
             |             
            
                6.80
             |           
            
                6.90
             |               
            
                6.70
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                26,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2013
             | 
            
                -0.10 / -1.45%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.13
             |                                 
            
                13,090
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                2,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2013
             | 
            
                +0.10 / +1.47%
             |             
            
                6.80
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                26,450
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2013
             | 
            
                -0.10 / -1.45%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.13
             |                                 
            
                29,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |