| 
                 
                    Closing price on 8/26/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.90 | 
                 
                
                    | High | 
                    3.90 | 
                 
                
                    | Low | 
                    3.80 | 
                     
                
                    | Volume | 
                    15,100 | 
                                 
                
                    | Split-adjusted Price | 
                    3.80 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VKC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/26/2019
             | 
            
                -0.10 / -2.56%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.85
             |                     
            
                3.80
             |                                 
            
                15,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                30,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.84
             |                     
            
                3.90
             |                                 
            
                36,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/21/2019
             | 
            
                +0.30 / +8.33%
             |             
            
                3.70
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.90
             | 
            
                3.80
             |                     
            
                3.90
             |                                 
            
                41,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2019
             | 
            
                -0.30 / -7.69%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.86
             |                     
            
                3.60
             |                                 
            
                38,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2019
             | 
            
                -0.10 / -2.50%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.94
             |                     
            
                3.90
             |                                 
            
                29,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.92
             |                     
            
                4.00
             |                                 
            
                75,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/15/2019
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                4.00
             |                                 
            
                44,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/14/2019
             | 
            
                +0.10 / +2.63%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.91
             |                     
            
                3.90
             |                                 
            
                39,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2019
             | 
            
                +0.10 / +2.70%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.72
             |                     
            
                3.80
             |                                 
            
                65,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/12/2019
             | 
            
                +0.10 / +2.78%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                64,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/9/2019
             | 
            
                -0.10 / -2.70%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.66
             |                     
            
                3.60
             |                                 
            
                12,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                6,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/7/2019
             | 
            
                +0.10 / +2.78%
             |             
            
                3.60
             |           
            
                3.70
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.62
             |                     
            
                3.70
             |                                 
            
                21,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/6/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                8,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2019
             | 
            
                +0.10 / +2.86%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                8,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2019
             | 
            
                -0.20 / -5.41%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.60
             |                     
            
                3.50
             |                                 
            
                11,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.71
             |                     
            
                3.70
             |                                 
            
                29,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/31/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                15,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2019
             | 
            
                -0.10 / -2.63%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.64
             |                     
            
                3.70
             |                                 
            
                40,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.70
             |                     
            
                3.80
             |                                 
            
                5,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.71
             |                     
            
                3.80
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2019
             | 
            
                +0.10 / +2.70%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.70
             |                     
            
                3.80
             |                                 
            
                6,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2019
             | 
            
                -0.10 / -2.63%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.69
             |                     
            
                3.70
             |                                 
            
                36,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.88
             |                     
            
                3.80
             |                                 
            
                28,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.76
             |                     
            
                3.80
             |                                 
            
                7,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.70
             |                     
            
                3.80
             |                                 
            
                3,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2019
             | 
            
                +0.10 / +2.70%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.70
             |                     
            
                3.80
             |                                 
            
                28,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.71
             |                     
            
                3.70
             |                                 
            
                2,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                18,600
             |  
            
                 
             |                                                              
             
    
         
    
    
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