| 
                 
                    Closing price on 5/16/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.80 | 
                 
                
                    | High | 
                    6.80 | 
                 
                
                    | Low | 
                    6.70 | 
                     
                
                    | Volume | 
                    57,200 | 
                                 
                
                    | Split-adjusted Price | 
                    6.13 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
QCG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                7.00
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                144,810
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                90,610
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                20,020
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2013
             | 
            
                -0.10 / -1.43%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                31,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2013
             | 
            
                +0.10 / +1.45%
             |             
            
                6.90
             |           
            
                7.00
             |               
            
                6.80
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                6.31
             |                                 
            
                36,310
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                60,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                119,010
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2013
             | 
            
                -0.10 / -1.43%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.22
             |                                 
            
                21,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2013
             | 
            
                -0.20 / -2.78%
             |             
            
                7.10
             |           
            
                7.20
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                6.31
             |                                 
            
                29,810
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                7.00
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                6.49
             |                                 
            
                3,360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2013
             | 
            
                +0.10 / +1.41%
             |             
            
                7.10
             |           
            
                7.20
             |               
            
                7.00
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                6.49
             |                                 
            
                31,220
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2013
             | 
            
                -0.20 / -2.74%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                6.40
             |                                 
            
                57,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.00
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                6.58
             |                                 
            
                110,620
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.30
             |               
            
                7.00
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                6.58
             |                                 
            
                14,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2013
             | 
            
                +0.10 / +1.39%
             |             
            
                7.30
             |           
            
                7.40
             |               
            
                7.10
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                6.58
             |                                 
            
                65,710
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                6.90
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                6.49
             |                                 
            
                15,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2013
             | 
            
                +0.10 / +1.41%
             |             
            
                7.00
             |           
            
                7.20
             |               
            
                7.00
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                6.49
             |                                 
            
                17,840
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2013
             | 
            
                +0.10 / +1.43%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                7.00
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                6.40
             |                                 
            
                10,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                6.31
             |                                 
            
                42,290
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                6.31
             |                                 
            
                26,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/2/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                6.31
             |                                 
            
                37,480
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                6.31
             |                                 
            
                16,770
             |  
            
                 
             |                                                              
             
    
         
    
    
 |