| 
                 
                    Closing price on 7/4/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    5.90 | 
                 
                
                    | High | 
                    5.90 | 
                 
                
                    | Low | 
                    5.65 | 
                     
                
                    | Volume | 
                    153,450 | 
                                 
                
                    | Split-adjusted Price | 
                    5.65 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
QBS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/4/2018
             | 
            
                -0.15 / -2.59%
             |             
            
                5.90
             |           
            
                5.90
             |               
            
                5.65
             |                           
            
                5.65
             | 
            
                5.74
             |                     
            
                5.65
             |                                 
            
                153,450
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2018
             | 
            
                -0.42 / -6.75%
             |             
            
                6.28
             |           
            
                6.28
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                6.08
             |                     
            
                5.80
             |                                 
            
                315,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2018
             | 
            
                -0.08 / -1.27%
             |             
            
                6.35
             |           
            
                6.38
             |               
            
                6.06
             |                           
            
                6.22
             | 
            
                6.19
             |                     
            
                6.22
             |                                 
            
                304,590
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2018
             | 
            
                -0.24 / -3.67%
             |             
            
                6.50
             |           
            
                6.60
             |               
            
                6.26
             |                           
            
                6.30
             | 
            
                6.39
             |                     
            
                6.30
             |                                 
            
                138,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/28/2018
             | 
            
                +0.20 / +3.15%
             |             
            
                6.34
             |           
            
                6.78
             |               
            
                6.34
             |                           
            
                6.54
             | 
            
                6.52
             |                     
            
                6.54
             |                                 
            
                977,330
             |            
            
                 
             |                                       
         
    
        
            | 
                6/27/2018
             | 
            
                +0.04 / +0.63%
             |             
            
                6.40
             |           
            
                6.46
             |               
            
                6.20
             |                           
            
                6.34
             | 
            
                6.35
             |                     
            
                6.34
             |                                 
            
                344,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/26/2018
             | 
            
                +0.15 / +2.44%
             |             
            
                6.15
             |           
            
                6.45
             |               
            
                6.12
             |                           
            
                6.30
             | 
            
                6.26
             |                     
            
                6.30
             |                                 
            
                376,220
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2018
             | 
            
                0.00 / 0.00%
             |             
            
                6.58
             |           
            
                6.58
             |               
            
                6.15
             |                           
            
                6.15
             | 
            
                6.22
             |                     
            
                6.15
             |                                 
            
                211,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2018
             | 
            
                +0.35 / +6.03%
             |             
            
                5.92
             |           
            
                6.15
             |               
            
                5.89
             |                           
            
                6.15
             | 
            
                6.02
             |                     
            
                6.15
             |                                 
            
                404,730
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2018
             | 
            
                -0.18 / -3.01%
             |             
            
                6.03
             |           
            
                6.03
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                5.89
             |                     
            
                5.80
             |                                 
            
                247,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/20/2018
             | 
            
                +0.28 / +4.91%
             |             
            
                5.85
             |           
            
                5.98
             |               
            
                5.71
             |                           
            
                5.98
             | 
            
                5.83
             |                     
            
                5.98
             |                                 
            
                319,820
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2018
             | 
            
                -0.42 / -6.86%
             |             
            
                6.05
             |           
            
                6.05
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.74
             |                     
            
                5.70
             |                                 
            
                180,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2018
             | 
            
                -0.03 / -0.49%
             |             
            
                6.17
             |           
            
                6.17
             |               
            
                6.05
             |                           
            
                6.12
             | 
            
                6.14
             |                     
            
                6.12
             |                                 
            
                230,460
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2018
             | 
            
                -0.02 / -0.32%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.15
             |                           
            
                6.15
             | 
            
                6.17
             |                     
            
                6.15
             |                                 
            
                272,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2018
             | 
            
                +0.03 / +0.49%
             |             
            
                6.14
             |           
            
                6.25
             |               
            
                6.12
             |                           
            
                6.17
             | 
            
                6.17
             |                     
            
                6.17
             |                                 
            
                167,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/13/2018
             | 
            
                0.00 / 0.00%
             |             
            
                5.94
             |           
            
                6.14
             |               
            
                5.94
             |                           
            
                6.14
             | 
            
                6.08
             |                     
            
                6.14
             |                                 
            
                208,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2018
             | 
            
                -0.14 / -2.23%
             |             
            
                6.21
             |           
            
                6.21
             |               
            
                5.98
             |                           
            
                6.14
             | 
            
                6.06
             |                     
            
                6.14
             |                                 
            
                373,020
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2018
             | 
            
                +0.18 / +2.95%
             |             
            
                6.10
             |           
            
                6.33
             |               
            
                6.00
             |                           
            
                6.28
             | 
            
                6.19
             |                     
            
                6.28
             |                                 
            
                318,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/8/2018
             | 
            
                +0.16 / +2.69%
             |             
            
                5.88
             |           
            
                6.18
             |               
            
                5.88
             |                           
            
                6.10
             | 
            
                6.04
             |                     
            
                6.10
             |                                 
            
                464,530
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2018
             | 
            
                +0.05 / +0.85%
             |             
            
                5.89
             |           
            
                5.98
             |               
            
                5.89
             |                           
            
                5.94
             | 
            
                5.92
             |                     
            
                5.94
             |                                 
            
                231,770
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/6/2018
             | 
            
                -0.04 / -0.67%
             |             
            
                5.75
             |           
            
                5.89
             |               
            
                5.67
             |                           
            
                5.89
             | 
            
                5.79
             |                     
            
                5.89
             |                                 
            
                119,870
             |            
            
                 
             |                                       
         
    
        
            | 
                6/5/2018
             | 
            
                -0.04 / -0.67%
             |             
            
                5.73
             |           
            
                5.93
             |               
            
                5.68
             |                           
            
                5.93
             | 
            
                5.81
             |                     
            
                5.93
             |                                 
            
                203,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/4/2018
             | 
            
                +0.09 / +1.53%
             |             
            
                5.50
             |           
            
                5.99
             |               
            
                5.50
             |                           
            
                5.97
             | 
            
                5.92
             |                     
            
                5.97
             |                                 
            
                276,270
             |            
            
                 
             |                                       
         
    
        
            | 
                6/1/2018
             | 
            
                +0.38 / +6.91%
             |             
            
                5.50
             |           
            
                5.88
             |               
            
                5.47
             |                           
            
                5.88
             | 
            
                5.78
             |                     
            
                5.88
             |                                 
            
                428,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/31/2018
             | 
            
                +0.01 / +0.18%
             |             
            
                5.49
             |           
            
                5.50
             |               
            
                5.45
             |                           
            
                5.50
             | 
            
                5.48
             |                     
            
                5.50
             |                                 
            
                167,640
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2018
             | 
            
                +0.01 / +0.18%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.30
             |                           
            
                5.49
             | 
            
                5.45
             |                     
            
                5.49
             |                                 
            
                43,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/29/2018
             | 
            
                +0.17 / +3.20%
             |             
            
                5.00
             |           
            
                5.50
             |               
            
                5.00
             |                           
            
                5.48
             | 
            
                5.30
             |                     
            
                5.48
             |                                 
            
                99,520
             |            
            
                 
             |                                       
         
    
        
            | 
                5/28/2018
             | 
            
                -0.39 / -6.84%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.31
             |                           
            
                5.31
             | 
            
                5.38
             |                     
            
                5.31
             |                                 
            
                322,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/25/2018
             | 
            
                -0.15 / -2.56%
             |             
            
                5.80
             |           
            
                5.90
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.80
             |                     
            
                5.70
             |                                 
            
                185,450
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2018
             | 
            
                -0.25 / -4.10%
             |             
            
                6.18
             |           
            
                6.18
             |               
            
                5.80
             |                           
            
                5.85
             | 
            
                5.96
             |                     
            
                5.85
             |                                 
            
                325,860
             |  
            
                 
             |                                                              
             
    
         
    
    
 |