| 
                 
                    Closing price on 11/5/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.74 | 
                 
                
                    | High | 
                    4.79 | 
                 
                
                    | Low | 
                    4.69 | 
                     
                
                    | Volume | 
                    41,750 | 
                                 
                
                    | Split-adjusted Price | 
                    4.70 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
QBS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/5/2018
             | 
            
                -0.10 / -2.08%
             |             
            
                4.74
             |           
            
                4.79
             |               
            
                4.69
             |                           
            
                4.70
             | 
            
                4.72
             |                     
            
                4.70
             |                                 
            
                41,750
             |            
            
                 
             |                                       
         
    
        
            | 
                11/2/2018
             | 
            
                +0.14 / +3.00%
             |             
            
                4.66
             |           
            
                4.85
             |               
            
                4.59
             |                           
            
                4.80
             | 
            
                4.66
             |                     
            
                4.80
             |                                 
            
                187,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/1/2018
             | 
            
                +0.05 / +1.08%
             |             
            
                4.61
             |           
            
                4.66
             |               
            
                4.54
             |                           
            
                4.66
             | 
            
                4.59
             |                     
            
                4.66
             |                                 
            
                211,940
             |            
            
                 
             |                                       
         
    
        
            | 
                10/31/2018
             | 
            
                -0.04 / -0.86%
             |             
            
                4.74
             |           
            
                4.74
             |               
            
                4.61
             |                           
            
                4.61
             | 
            
                4.66
             |                     
            
                4.61
             |                                 
            
                189,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/30/2018
             | 
            
                -0.24 / -4.91%
             |             
            
                4.84
             |           
            
                4.88
             |               
            
                4.60
             |                           
            
                4.65
             | 
            
                4.74
             |                     
            
                4.65
             |                                 
            
                372,050
             |            
            
                 
             |                                       
         
    
        
            | 
                10/29/2018
             | 
            
                +0.28 / +6.07%
             |             
            
                4.70
             |           
            
                4.89
             |               
            
                4.51
             |                           
            
                4.89
             | 
            
                4.69
             |                     
            
                4.89
             |                                 
            
                165,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/26/2018
             | 
            
                -0.34 / -6.87%
             |             
            
                4.95
             |           
            
                5.00
             |               
            
                4.61
             |                           
            
                4.61
             | 
            
                4.68
             |                     
            
                4.61
             |                                 
            
                534,550
             |            
            
                 
             |                                       
         
    
        
            | 
                10/25/2018
             | 
            
                -0.13 / -2.56%
             |             
            
                4.85
             |           
            
                4.98
             |               
            
                4.78
             |                           
            
                4.95
             | 
            
                4.86
             |                     
            
                4.95
             |                                 
            
                384,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/24/2018
             | 
            
                +0.03 / +0.59%
             |             
            
                5.00
             |           
            
                5.19
             |               
            
                4.97
             |                           
            
                5.08
             | 
            
                5.04
             |                     
            
                5.08
             |                                 
            
                354,960
             |            
            
                 
             |                                       
         
    
        
            | 
                10/23/2018
             | 
            
                -0.37 / -6.83%
             |             
            
                5.05
             |           
            
                5.26
             |               
            
                5.05
             |                           
            
                5.05
             | 
            
                5.05
             |                     
            
                5.05
             |                                 
            
                809,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/22/2018
             | 
            
                -0.40 / -6.87%
             |             
            
                5.69
             |           
            
                5.70
             |               
            
                5.42
             |                           
            
                5.42
             | 
            
                5.51
             |                     
            
                5.42
             |                                 
            
                187,260
             |            
            
                 
             |                                       
         
    
        
            | 
                10/19/2018
             | 
            
                +0.01 / +0.17%
             |             
            
                5.95
             |           
            
                6.14
             |               
            
                5.80
             |                           
            
                5.82
             | 
            
                5.95
             |                     
            
                5.82
             |                                 
            
                499,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/18/2018
             | 
            
                +0.38 / +7.00%
             |             
            
                5.50
             |           
            
                5.81
             |               
            
                5.43
             |                           
            
                5.81
             | 
            
                5.75
             |                     
            
                5.81
             |                                 
            
                722,740
             |            
            
                 
             |                                       
         
    
        
            | 
                10/17/2018
             | 
            
                +0.05 / +0.93%
             |             
            
                5.38
             |           
            
                5.46
             |               
            
                5.36
             |                           
            
                5.43
             | 
            
                5.42
             |                     
            
                5.43
             |                                 
            
                433,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/16/2018
             | 
            
                +0.29 / +5.70%
             |             
            
                5.25
             |           
            
                5.38
             |               
            
                5.08
             |                           
            
                5.38
             | 
            
                5.19
             |                     
            
                5.38
             |                                 
            
                439,690
             |            
            
                 
             |                                       
         
    
        
            | 
                10/15/2018
             | 
            
                -0.10 / -1.93%
             |             
            
                5.46
             |           
            
                5.46
             |               
            
                5.09
             |                           
            
                5.09
             | 
            
                5.18
             |                     
            
                5.09
             |                                 
            
                342,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/12/2018
             | 
            
                +0.27 / +5.49%
             |             
            
                4.72
             |           
            
                5.19
             |               
            
                4.70
             |                           
            
                5.19
             | 
            
                4.96
             |                     
            
                5.19
             |                                 
            
                284,830
             |            
            
                 
             |                                       
         
    
        
            | 
                10/11/2018
             | 
            
                -0.36 / -6.82%
             |             
            
                5.21
             |           
            
                5.21
             |               
            
                4.92
             |                           
            
                4.92
             | 
            
                4.95
             |                     
            
                4.92
             |                                 
            
                531,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/10/2018
             | 
            
                -0.04 / -0.75%
             |             
            
                5.35
             |           
            
                5.35
             |               
            
                5.25
             |                           
            
                5.28
             | 
            
                5.30
             |                     
            
                5.28
             |                                 
            
                232,070
             |            
            
                 
             |                                       
         
    
        
            | 
                10/9/2018
             | 
            
                +0.03 / +0.57%
             |             
            
                5.22
             |           
            
                5.35
             |               
            
                5.22
             |                           
            
                5.32
             | 
            
                5.31
             |                     
            
                5.32
             |                                 
            
                273,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/8/2018
             | 
            
                -0.02 / -0.38%
             |             
            
                5.30
             |           
            
                5.33
             |               
            
                5.19
             |                           
            
                5.29
             | 
            
                5.25
             |                     
            
                5.29
             |                                 
            
                115,480
             |            
            
                 
             |                                       
         
    
        
            | 
                10/5/2018
             | 
            
                -0.11 / -2.03%
             |             
            
                5.42
             |           
            
                5.42
             |               
            
                5.31
             |                           
            
                5.31
             | 
            
                5.38
             |                     
            
                5.31
             |                                 
            
                284,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/4/2018
             | 
            
                +0.01 / +0.18%
             |             
            
                5.36
             |           
            
                5.45
             |               
            
                5.36
             |                           
            
                5.42
             | 
            
                5.41
             |                     
            
                5.42
             |                                 
            
                326,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/3/2018
             | 
            
                +0.05 / +0.93%
             |             
            
                5.36
             |           
            
                5.44
             |               
            
                5.35
             |                           
            
                5.41
             | 
            
                5.40
             |                     
            
                5.41
             |                                 
            
                365,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/2/2018
             | 
            
                -0.02 / -0.37%
             |             
            
                5.38
             |           
            
                5.41
             |               
            
                5.35
             |                           
            
                5.36
             | 
            
                5.38
             |                     
            
                5.36
             |                                 
            
                144,120
             |            
            
                 
             |                                       
         
    
        
            | 
                10/1/2018
             | 
            
                -0.03 / -0.55%
             |             
            
                5.42
             |           
            
                5.42
             |               
            
                5.31
             |                           
            
                5.38
             | 
            
                5.38
             |                     
            
                5.38
             |                                 
            
                311,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/28/2018
             | 
            
                0.00 / 0.00%
             |             
            
                5.41
             |           
            
                5.46
             |               
            
                5.37
             |                           
            
                5.41
             | 
            
                5.41
             |                     
            
                5.41
             |                                 
            
                191,190
             |            
            
                 
             |                                       
         
    
        
            | 
                9/27/2018
             | 
            
                +0.17 / +3.24%
             |             
            
                5.33
             |           
            
                5.45
             |               
            
                5.20
             |                           
            
                5.41
             | 
            
                5.29
             |                     
            
                5.41
             |                                 
            
                399,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/26/2018
             | 
            
                +0.01 / +0.19%
             |             
            
                5.34
             |           
            
                5.34
             |               
            
                5.19
             |                           
            
                5.24
             | 
            
                5.21
             |                     
            
                5.24
             |                                 
            
                255,510
             |            
            
                 
             |                                       
         
    
        
            | 
                9/25/2018
             | 
            
                -0.07 / -1.32%
             |             
            
                5.35
             |           
            
                5.35
             |               
            
                5.21
             |                           
            
                5.23
             | 
            
                5.27
             |                     
            
                5.23
             |                                 
            
                122,030
             |  
            
                 
             |                                                              
             
    
         
    
    
 |