| 
                 
                    Closing price on 10/15/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    5.80 | 
                 
                
                    | High | 
                    7.10 | 
                 
                
                    | Low | 
                    5.80 | 
                     
                
                    | Volume | 
                    200 | 
                                 
                
                    | Split-adjusted Price | 
                    4.00 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DSC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/15/2019
             | 
            
                +0.50 / +7.58%
             |             
            
                5.80
             |           
            
                7.10
             |               
            
                5.80
             |                           
            
                7.10
             | 
            
                6.45
             |                     
            
                4.00
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/14/2019
             | 
            
                -0.70 / -9.59%
             |             
            
                6.50
             |           
            
                6.60
             |               
            
                6.50
             |                           
            
                6.60
             | 
            
                6.52
             |                     
            
                3.72
             |                                 
            
                1,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                4.12
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2019
             | 
            
                +0.10 / +1.39%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                4.12
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2019
             | 
            
                +0.20 / +2.86%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                4.06
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2019
             | 
            
                +0.20 / +2.94%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                3.95
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2019
             | 
            
                +0.40 / +6.25%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                3.83
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2019
             | 
            
                -0.20 / -3.03%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                3.61
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2019
             | 
            
                -0.20 / -2.94%
             |             
            
                6.60
             |           
            
                6.60
             |               
            
                6.60
             |                           
            
                6.60
             | 
            
                6.60
             |                     
            
                3.72
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2019
             | 
            
                +0.20 / +3.03%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                3.83
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2019
             | 
            
                +0.20 / +3.13%
             |             
            
                6.20
             |           
            
                6.60
             |               
            
                6.20
             |                           
            
                6.60
             | 
            
                6.40
             |                     
            
                3.72
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2019
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.56
             |                     
            
                3.61
             |                                 
            
                8,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2019
             | 
            
                -0.20 / -3.08%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.40
             |                     
            
                3.55
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2019
             | 
            
                +0.20 / +3.17%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                3.66
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2019
             | 
            
                +0.10 / +1.61%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                3.55
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2019
             | 
            
                -0.10 / -1.59%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.28
             |                     
            
                3.50
             |                                 
            
                3,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                3.55
             |                                 
            
                5,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2019
             | 
            
                -0.10 / -1.56%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                3.55
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                3.61
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2019
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.42
             |                     
            
                3.61
             |                                 
            
                900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2019
             | 
            
                -0.10 / -1.54%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.48
             |                     
            
                3.61
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                6.60
             |           
            
                6.60
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.54
             |                     
            
                3.66
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/13/2019
             | 
            
                -0.10 / -1.49%
             |             
            
                6.50
             |           
            
                6.60
             |               
            
                6.50
             |                           
            
                6.60
             | 
            
                6.52
             |                     
            
                3.72
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2019
             | 
            
                0.00 / 0.00%
             |             
            
                6.70
             |           
            
                6.70
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.70
             |                     
            
                3.78
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2019
             | 
            
                -0.30 / -4.29%
             |             
            
                6.70
             |           
            
                6.70
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.70
             |                     
            
                3.78
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2019
             | 
            
                -0.20 / -2.78%
             |             
            
                6.50
             |           
            
                7.00
             |               
            
                6.50
             |                           
            
                7.00
             | 
            
                6.53
             |                     
            
                3.95
             |                                 
            
                3,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2019
             | 
            
                +0.80 / +12.50%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                4.06
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2019
             | 
            
                -0.90 / -12.33%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                3.61
             |                                 
            
                3,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                4.12
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                4.12
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |