| 
                 
                    Closing price on 11/30/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.76 | 
                 
                
                    | High | 
                    7.95 | 
                 
                
                    | Low | 
                    7.70 | 
                     
                
                    | Volume | 
                    305,310 | 
                                 
                
                    | Split-adjusted Price | 
                    7.75 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
QBS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/30/2017
             | 
            
                -0.09 / -1.15%
             |             
            
                7.76
             |           
            
                7.95
             |               
            
                7.70
             |                           
            
                7.75
             | 
            
                7.80
             |                     
            
                7.75
             |                                 
            
                305,310
             |            
            
                 
             |                                       
         
    
        
            | 
                11/29/2017
             | 
            
                +0.06 / +0.77%
             |             
            
                7.78
             |           
            
                7.90
             |               
            
                7.74
             |                           
            
                7.84
             | 
            
                7.77
             |                     
            
                7.84
             |                                 
            
                381,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/28/2017
             | 
            
                -0.22 / -2.75%
             |             
            
                8.00
             |           
            
                8.19
             |               
            
                7.78
             |                           
            
                7.78
             | 
            
                7.93
             |                     
            
                7.78
             |                                 
            
                385,370
             |            
            
                 
             |                                       
         
    
        
            | 
                11/27/2017
             | 
            
                +0.17 / +2.17%
             |             
            
                7.84
             |           
            
                8.30
             |               
            
                7.74
             |                           
            
                8.00
             | 
            
                7.85
             |                     
            
                8.00
             |                                 
            
                590,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/24/2017
             | 
            
                +0.04 / +0.51%
             |             
            
                7.79
             |           
            
                7.85
             |               
            
                7.71
             |                           
            
                7.83
             | 
            
                7.80
             |                     
            
                7.83
             |                                 
            
                174,090
             |            
            
                 
             |                                       
         
    
        
            | 
                11/23/2017
             | 
            
                -0.10 / -1.27%
             |             
            
                7.88
             |           
            
                7.99
             |               
            
                7.72
             |                           
            
                7.79
             | 
            
                7.76
             |                     
            
                7.79
             |                                 
            
                144,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/22/2017
             | 
            
                -0.01 / -0.13%
             |             
            
                7.91
             |           
            
                7.91
             |               
            
                7.70
             |                           
            
                7.89
             | 
            
                7.76
             |                     
            
                7.89
             |                                 
            
                203,890
             |            
            
                 
             |                                       
         
    
        
            | 
                11/21/2017
             | 
            
                -0.05 / -0.63%
             |             
            
                7.84
             |           
            
                7.94
             |               
            
                7.77
             |                           
            
                7.90
             | 
            
                7.83
             |                     
            
                7.90
             |                                 
            
                182,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/20/2017
             | 
            
                -0.02 / -0.25%
             |             
            
                7.90
             |           
            
                8.10
             |               
            
                7.90
             |                           
            
                7.95
             | 
            
                7.92
             |                     
            
                7.95
             |                                 
            
                80,070
             |            
            
                 
             |                                       
         
    
        
            | 
                11/17/2017
             | 
            
                +0.08 / +1.01%
             |             
            
                7.89
             |           
            
                8.20
             |               
            
                7.89
             |                           
            
                7.97
             | 
            
                8.07
             |                     
            
                7.97
             |                                 
            
                276,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/16/2017
             | 
            
                +0.19 / +2.47%
             |             
            
                7.70
             |           
            
                7.98
             |               
            
                7.65
             |                           
            
                7.89
             | 
            
                7.75
             |                     
            
                7.89
             |                                 
            
                223,940
             |            
            
                 
             |                                       
         
    
        
            | 
                11/15/2017
             | 
            
                0.00 / 0.00%
             |             
            
                7.68
             |           
            
                7.84
             |               
            
                7.65
             |                           
            
                7.70
             | 
            
                7.71
             |                     
            
                7.70
             |                                 
            
                79,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/14/2017
             | 
            
                -0.09 / -1.16%
             |             
            
                7.78
             |           
            
                7.79
             |               
            
                7.68
             |                           
            
                7.70
             | 
            
                7.73
             |                     
            
                7.70
             |                                 
            
                174,070
             |            
            
                 
             |                                       
         
    
        
            | 
                11/13/2017
             | 
            
                -0.07 / -0.89%
             |             
            
                7.80
             |           
            
                7.88
             |               
            
                7.60
             |                           
            
                7.79
             | 
            
                7.72
             |                     
            
                7.79
             |                                 
            
                6,141,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/10/2017
             | 
            
                -0.10 / -1.26%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                7.70
             |                           
            
                7.86
             | 
            
                7.81
             |                     
            
                7.86
             |                                 
            
                266,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/9/2017
             | 
            
                -0.24 / -2.93%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                7.96
             |                           
            
                7.96
             | 
            
                8.07
             |                     
            
                7.96
             |                                 
            
                334,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/8/2017
             | 
            
                -0.09 / -1.09%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.06
             |                           
            
                8.20
             | 
            
                8.10
             |                     
            
                8.20
             |                                 
            
                295,770
             |            
            
                 
             |                                       
         
    
        
            | 
                11/7/2017
             | 
            
                0.00 / 0.00%
             |             
            
                8.10
             |           
            
                8.30
             |               
            
                8.05
             |                           
            
                8.29
             | 
            
                8.15
             |                     
            
                8.29
             |                                 
            
                235,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/6/2017
             | 
            
                +0.29 / +3.63%
             |             
            
                8.05
             |           
            
                8.30
             |               
            
                8.00
             |                           
            
                8.29
             | 
            
                8.13
             |                     
            
                8.29
             |                                 
            
                203,520
             |            
            
                 
             |                                       
         
    
        
            | 
                11/3/2017
             | 
            
                +0.23 / +2.96%
             |             
            
                7.68
             |           
            
                8.00
             |               
            
                7.43
             |                           
            
                8.00
             | 
            
                7.76
             |                     
            
                8.00
             |                                 
            
                258,090
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/2/2017
             | 
            
                -0.53 / -6.39%
             |             
            
                8.30
             |           
            
                8.30
             |               
            
                7.72
             |                           
            
                7.77
             | 
            
                7.79
             |                     
            
                7.77
             |                                 
            
                1,237,950
             |            
            
                 
             |                                       
         
    
        
            | 
                11/1/2017
             | 
            
                -0.40 / -4.60%
             |             
            
                8.52
             |           
            
                8.89
             |               
            
                8.30
             |                           
            
                8.30
             | 
            
                8.61
             |                     
            
                8.30
             |                                 
            
                367,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/31/2017
             | 
            
                -0.41 / -4.50%
             |             
            
                9.11
             |           
            
                9.11
             |               
            
                8.50
             |                           
            
                8.70
             | 
            
                8.81
             |                     
            
                8.70
             |                                 
            
                275,270
             |            
            
                 
             |                                       
         
    
        
            | 
                10/30/2017
             | 
            
                +0.10 / +1.11%
             |             
            
                9.20
             |           
            
                9.35
             |               
            
                9.01
             |                           
            
                9.11
             | 
            
                9.16
             |                     
            
                9.11
             |                                 
            
                211,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/27/2017
             | 
            
                +0.01 / +0.11%
             |             
            
                9.10
             |           
            
                9.20
             |               
            
                9.00
             |                           
            
                9.01
             | 
            
                9.06
             |                     
            
                9.01
             |                                 
            
                283,860
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2017
             | 
            
                -0.30 / -3.23%
             |             
            
                9.24
             |           
            
                9.35
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.17
             |                     
            
                9.00
             |                                 
            
                387,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2017
             | 
            
                -0.06 / -0.64%
             |             
            
                9.31
             |           
            
                9.52
             |               
            
                9.25
             |                           
            
                9.30
             | 
            
                9.35
             |                     
            
                9.30
             |                                 
            
                217,590
             |            
            
                 
             |                                       
         
    
        
            | 
                10/24/2017
             | 
            
                +0.06 / +0.65%
             |             
            
                9.23
             |           
            
                9.36
             |               
            
                9.23
             |                           
            
                9.36
             | 
            
                9.31
             |                     
            
                9.36
             |                                 
            
                276,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/23/2017
             | 
            
                -0.23 / -2.41%
             |             
            
                9.53
             |           
            
                9.63
             |               
            
                9.30
             |                           
            
                9.30
             | 
            
                9.40
             |                     
            
                9.30
             |                                 
            
                313,580
             |            
            
                 
             |                                       
         
    
        
            | 
                10/20/2017
             | 
            
                -0.02 / -0.21%
             |             
            
                9.55
             |           
            
                9.80
             |               
            
                9.53
             |                           
            
                9.53
             | 
            
                9.61
             |                     
            
                9.53
             |                                 
            
                356,420
             |  
            
                 
             |                                                              
             
    
         
    
    
 |