| 
                 
                    Closing price on 8/20/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.40 | 
                 
                
                    | High | 
                    7.50 | 
                 
                
                    | Low | 
                    7.40 | 
                     
                
                    | Volume | 
                    1,200 | 
                                 
                
                    | Split-adjusted Price | 
                    4.23 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DSC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/20/2019
             | 
            
                +0.50 / +7.14%
             |             
            
                7.40
             |           
            
                7.50
             |               
            
                7.40
             |                           
            
                7.50
             | 
            
                7.47
             |                     
            
                4.23
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2019
             | 
            
                -0.40 / -5.41%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                3.95
             |                                 
            
                8,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/16/2019
             | 
            
                -0.10 / -1.33%
             |             
            
                7.40
             |           
            
                7.50
             |               
            
                7.40
             |                           
            
                7.40
             | 
            
                7.44
             |                     
            
                4.17
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/15/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                4.23
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                4.23
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                4.23
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/12/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                4.23
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                8/9/2019
             | 
            
                -0.10 / -1.32%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                4.23
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                4.29
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/7/2019
             | 
            
                +0.70 / +10.14%
             |             
            
                7.50
             |           
            
                7.70
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                4.29
             |                                 
            
                1,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/6/2019
             | 
            
                -0.10 / -1.43%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                6.90
             |                           
            
                6.90
             | 
            
                6.92
             |                     
            
                3.89
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2019
             | 
            
                -1.20 / -14.63%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.36
             |                     
            
                3.95
             |                                 
            
                14,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2019
             | 
            
                -0.20 / -2.41%
             |             
            
                8.60
             |           
            
                8.60
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.23
             |                     
            
                4.57
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2019
             | 
            
                -0.30 / -3.49%
             |             
            
                8.20
             |           
            
                8.30
             |               
            
                8.20
             |                           
            
                8.30
             | 
            
                8.29
             |                     
            
                4.68
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/31/2019
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                8.60
             |               
            
                8.40
             |                           
            
                8.60
             | 
            
                8.56
             |                     
            
                4.85
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2019
             | 
            
                -0.30 / -3.37%
             |             
            
                8.60
             |           
            
                8.60
             |               
            
                8.60
             |                           
            
                8.60
             | 
            
                8.60
             |                     
            
                4.85
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2019
             | 
            
                +0.60 / +7.23%
             |             
            
                8.90
             |           
            
                8.90
             |               
            
                8.90
             |                           
            
                8.90
             | 
            
                8.90
             |                     
            
                5.02
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2019
             | 
            
                -0.20 / -2.35%
             |             
            
                8.30
             |           
            
                8.30
             |               
            
                8.30
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                4.68
             |                                 
            
                10,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2019
             | 
            
                -0.50 / -5.56%
             |             
            
                8.30
             |           
            
                8.50
             |               
            
                8.30
             |                           
            
                8.50
             | 
            
                8.42
             |                     
            
                4.79
             |                                 
            
                8,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2019
             | 
            
                +0.50 / +5.88%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                5.07
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                8.90
             |           
            
                8.90
             |               
            
                8.50
             |                           
            
                8.50
             | 
            
                8.77
             |                     
            
                4.79
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                8.80
             |           
            
                8.80
             |               
            
                8.50
             |                           
            
                8.50
             | 
            
                8.52
             |                     
            
                4.79
             |                                 
            
                1,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2019
             | 
            
                -0.10 / -1.16%
             |             
            
                8.90
             |           
            
                8.90
             |               
            
                8.50
             |                           
            
                8.50
             | 
            
                8.55
             |                     
            
                4.79
             |                                 
            
                3,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2019
             | 
            
                -0.60 / -6.52%
             |             
            
                8.60
             |           
            
                8.60
             |               
            
                8.60
             |                           
            
                8.60
             | 
            
                8.60
             |                     
            
                4.85
             |                                 
            
                1,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2019
             | 
            
                +0.20 / +2.22%
             |             
            
                9.00
             |           
            
                9.20
             |               
            
                8.30
             |                           
            
                9.20
             | 
            
                8.87
             |                     
            
                5.19
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                5.07
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                5.07
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                5.07
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                9.00
             |               
            
                8.40
             |                           
            
                9.00
             | 
            
                8.64
             |                     
            
                5.07
             |                                 
            
                6,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2019
             | 
            
                +0.20 / +2.27%
             |             
            
                8.90
             |           
            
                9.00
             |               
            
                8.90
             |                           
            
                9.00
             | 
            
                8.98
             |                     
            
                5.07
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |