| 
                 
                    Closing price on 11/22/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    12.70 | 
                 
                
                    | High | 
                    12.70 | 
                 
                
                    | Low | 
                    12.70 | 
                     
                
                    | Volume | 
                    100 | 
                                 
                
                    | Split-adjusted Price | 
                    5.59 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DSC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/22/2018
             | 
            
                -0.20 / -1.55%
             |             
            
                12.70
             |           
            
                12.70
             |               
            
                12.70
             |                           
            
                12.70
             | 
            
                12.70
             |                     
            
                5.59
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/21/2018
             | 
            
                +0.30 / +2.38%
             |             
            
                12.90
             |           
            
                12.90
             |               
            
                12.90
             |                           
            
                12.90
             | 
            
                12.90
             |                     
            
                5.68
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/20/2018
             | 
            
                +0.70 / +5.88%
             |             
            
                12.60
             |           
            
                12.60
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                5.55
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/19/2018
             | 
            
                -1.50 / -11.19%
             |             
            
                11.90
             |           
            
                11.90
             |               
            
                11.90
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                5.24
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/16/2018
             | 
            
                +1.50 / +12.30%
             |             
            
                10.70
             |           
            
                13.70
             |               
            
                10.70
             |                           
            
                13.70
             | 
            
                13.36
             |                     
            
                6.03
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/15/2018
             | 
            
                0.00 / 0.00%
             |             
            
                12.20
             |           
            
                12.20
             |               
            
                12.20
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                5.37
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/14/2018
             | 
            
                +0.10 / +0.83%
             |             
            
                12.20
             |           
            
                12.20
             |               
            
                12.20
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                5.37
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                11/13/2018
             | 
            
                -1.90 / -13.57%
             |             
            
                12.50
             |           
            
                12.50
             |               
            
                12.10
             |                           
            
                12.10
             | 
            
                12.22
             |                     
            
                5.33
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/12/2018
             | 
            
                +0.10 / +0.72%
             |             
            
                11.90
             |           
            
                15.00
             |               
            
                11.90
             |                           
            
                14.00
             | 
            
                14.24
             |                     
            
                6.17
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/9/2018
             | 
            
                -0.10 / -0.71%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.90
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                6.12
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/8/2018
             | 
            
                -1.40 / -9.09%
             |             
            
                13.20
             |           
            
                14.00
             |               
            
                13.20
             |                           
            
                14.00
             | 
            
                13.92
             |                     
            
                6.17
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/7/2018
             | 
            
                +1.90 / +14.07%
             |             
            
                15.20
             |           
            
                15.40
             |               
            
                14.40
             |                           
            
                15.40
             | 
            
                15.17
             |                     
            
                6.78
             |                                 
            
                2,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/6/2018
             | 
            
                0.00 / 0.00%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                5.94
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                11/5/2018
             | 
            
                -1.50 / -10.00%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                5.94
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/2/2018
             | 
            
                -0.50 / -3.23%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                6.61
             |                                 
            
                1,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/1/2018
             | 
            
                0.00 / 0.00%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                15.50
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                6.83
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/31/2018
             | 
            
                -0.50 / -3.13%
             |             
            
                16.90
             |           
            
                16.90
             |               
            
                14.20
             |                           
            
                15.50
             | 
            
                15.48
             |                     
            
                6.83
             |                                 
            
                6,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/30/2018
             | 
            
                -1.10 / -6.43%
             |             
            
                14.60
             |           
            
                16.70
             |               
            
                14.60
             |                           
            
                16.00
             | 
            
                15.85
             |                     
            
                7.05
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/29/2018
             | 
            
                0.00 / 0.00%
             |             
            
                17.10
             |           
            
                17.10
             |               
            
                17.10
             |                           
            
                17.10
             | 
            
                17.10
             |                     
            
                7.53
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2018
             | 
            
                +0.20 / +1.18%
             |             
            
                17.10
             |           
            
                17.10
             |               
            
                17.10
             |                           
            
                17.10
             | 
            
                17.10
             |                     
            
                7.53
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2018
             | 
            
                +1.40 / +9.03%
             |             
            
                16.00
             |           
            
                16.90
             |               
            
                16.00
             |                           
            
                16.90
             | 
            
                16.28
             |                     
            
                7.44
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/24/2018
             | 
            
                -0.60 / -3.73%
             |             
            
                15.90
             |           
            
                15.90
             |               
            
                15.50
             |                           
            
                15.50
             | 
            
                15.88
             |                     
            
                6.83
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/23/2018
             | 
            
                +0.10 / +0.63%
             |             
            
                16.90
             |           
            
                17.30
             |               
            
                16.10
             |                           
            
                16.10
             | 
            
                16.20
             |                     
            
                7.09
             |                                 
            
                2,100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2018
             | 
            
                -0.20 / -1.23%
             |             
            
                15.00
             |           
            
                17.70
             |               
            
                15.00
             |                           
            
                16.00
             | 
            
                15.71
             |                     
            
                7.05
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/19/2018
             | 
            
                -1.30 / -7.30%
             |             
            
                18.60
             |           
            
                18.60
             |               
            
                16.00
             |                           
            
                16.50
             | 
            
                16.17
             |                     
            
                7.27
             |                                 
            
                7,600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2018
             | 
            
                -1.60 / -8.25%
             |             
            
                19.00
             |           
            
                19.00
             |               
            
                16.10
             |                           
            
                17.80
             | 
            
                16.96
             |                     
            
                7.84
             |                                 
            
                6,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/17/2018
             | 
            
                +0.90 / +4.86%
             |             
            
                19.90
             |           
            
                19.90
             |               
            
                18.20
             |                           
            
                19.40
             | 
            
                18.93
             |                     
            
                8.54
             |                                 
            
                2,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/16/2018
             | 
            
                -0.50 / -2.63%
             |             
            
                19.00
             |           
            
                19.00
             |               
            
                18.30
             |                           
            
                18.50
             | 
            
                18.76
             |                     
            
                8.15
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/15/2018
             | 
            
                +1.30 / +7.34%
             |             
            
                17.60
             |           
            
                19.00
             |               
            
                17.60
             |                           
            
                19.00
             | 
            
                18.38
             |                     
            
                8.37
             |                                 
            
                900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/12/2018
             | 
            
                +1.60 / +8.74%
             |             
            
                17.30
             |           
            
                20.00
             |               
            
                17.10
             |                           
            
                19.90
             | 
            
                17.68
             |                     
            
                8.76
             |                                 
            
                1,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |