| 
                 
                    Closing price on 2/1/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    1.60 | 
                 
                
                    | High | 
                    1.60 | 
                 
                
                    | Low | 
                    1.50 | 
                     
                
                    | Volume | 
                    200 | 
                                 
                
                    | Split-adjusted Price | 
                    1.50 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/1/2021
             | 
            
                0.00 / 0.00%
             |             
            
                1.60
             |           
            
                1.60
             |               
            
                1.50
             |                           
            
                1.50
             | 
            
                1.55
             |                     
            
                1.50
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/29/2021
             | 
            
                +0.20 / +14.29%
             |             
            
                1.30
             |           
            
                1.60
             |               
            
                1.30
             |                           
            
                1.60
             | 
            
                1.48
             |                     
            
                1.60
             |                                 
            
                3,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/28/2021
             | 
            
                -0.20 / -12.50%
             |             
            
                1.60
             |           
            
                1.60
             |               
            
                1.40
             |                           
            
                1.40
             | 
            
                1.42
             |                     
            
                1.40
             |                                 
            
                24,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/27/2021
             | 
            
                -0.20 / -11.11%
             |             
            
                1.80
             |           
            
                1.80
             |               
            
                1.60
             |                           
            
                1.60
             | 
            
                1.63
             |                     
            
                1.60
             |                                 
            
                16,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2021
             | 
            
                0.00 / 0.00%
             |             
            
                1.90
             |           
            
                1.90
             |               
            
                1.80
             |                           
            
                1.90
             | 
            
                1.81
             |                     
            
                1.90
             |                                 
            
                8,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2021
             | 
            
                -0.10 / -5.00%
             |             
            
                1.90
             |           
            
                1.90
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.90
             |                     
            
                1.90
             |                                 
            
                41,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2021
             | 
            
                -0.10 / -5.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.99
             |                     
            
                1.90
             |                                 
            
                4,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2021
             | 
            
                +0.10 / +5.26%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.03
             |                     
            
                2.00
             |                                 
            
                24,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2021
             | 
            
                +0.20 / +11.76%
             |             
            
                1.70
             |           
            
                1.90
             |               
            
                1.60
             |                           
            
                1.90
             | 
            
                1.87
             |                     
            
                1.90
             |                                 
            
                3,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2021
             | 
            
                -0.30 / -15.00%
             |             
            
                1.80
             |           
            
                1.80
             |               
            
                1.70
             |                           
            
                1.70
             | 
            
                1.71
             |                     
            
                1.70
             |                                 
            
                4,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2021
             | 
            
                +0.10 / +5.26%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.99
             |                     
            
                2.00
             |                                 
            
                14,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2021
             | 
            
                0.00 / 0.00%
             |             
            
                1.70
             |           
            
                2.00
             |               
            
                1.70
             |                           
            
                2.00
             | 
            
                1.95
             |                     
            
                2.00
             |                                 
            
                6,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2021
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                39,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2021
             | 
            
                -0.30 / -15.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.70
             |                           
            
                1.70
             | 
            
                1.98
             |                     
            
                1.70
             |                                 
            
                14,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2021
             | 
            
                +0.10 / +5.56%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.97
             |                     
            
                1.90
             |                                 
            
                3,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2021
             | 
            
                +0.20 / +12.50%
             |             
            
                1.60
             |           
            
                1.80
             |               
            
                1.60
             |                           
            
                1.80
             | 
            
                1.80
             |                     
            
                1.80
             |                                 
            
                120,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/8/2021
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.60
             |               
            
                1.50
             |                           
            
                1.60
             | 
            
                1.57
             |                     
            
                1.60
             |                                 
            
                900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2021
             | 
            
                -0.10 / -5.88%
             |             
            
                1.60
             |           
            
                1.60
             |               
            
                1.60
             |                           
            
                1.60
             | 
            
                1.60
             |                     
            
                1.60
             |                                 
            
                4,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2021
             | 
            
                -0.10 / -5.88%
             |             
            
                1.70
             |           
            
                1.70
             |               
            
                1.60
             |                           
            
                1.60
             | 
            
                1.67
             |                     
            
                1.60
             |                                 
            
                15,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2021
             | 
            
                0.00 / 0.00%
             |             
            
                1.70
             |           
            
                1.80
             |               
            
                1.60
             |                           
            
                1.80
             | 
            
                1.75
             |                     
            
                1.80
             |                                 
            
                3,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2021
             | 
            
                +0.10 / +5.88%
             |             
            
                1.70
             |           
            
                1.90
             |               
            
                1.70
             |                           
            
                1.80
             | 
            
                1.81
             |                     
            
                1.80
             |                                 
            
                61,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/31/2020
             | 
            
                0.00 / 0.00%
             |             
            
                1.70
             |           
            
                1.70
             |               
            
                1.60
             |                           
            
                1.60
             | 
            
                1.65
             |                     
            
                1.60
             |                                 
            
                66,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/30/2020
             | 
            
                +0.20 / +14.29%
             |             
            
                1.40
             |           
            
                1.60
             |               
            
                1.40
             |                           
            
                1.60
             | 
            
                1.57
             |                     
            
                1.60
             |                                 
            
                84,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/29/2020
             | 
            
                +0.10 / +7.69%
             |             
            
                1.40
             |           
            
                1.40
             |               
            
                1.40
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                24,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2020
             | 
            
                +0.10 / +8.33%
             |             
            
                1.30
             |           
            
                1.30
             |               
            
                1.30
             |                           
            
                1.30
             | 
            
                1.30
             |                     
            
                1.30
             |                                 
            
                45,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2020
             | 
            
                +0.10 / +8.33%
             |             
            
                1.20
             |           
            
                1.30
             |               
            
                1.20
             |                           
            
                1.30
             | 
            
                1.21
             |                     
            
                1.30
             |                                 
            
                19,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/24/2020
             | 
            
                +0.10 / +9.09%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.20
             | 
            
                1.17
             |                     
            
                1.20
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/23/2020
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                15,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/22/2020
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                20,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2020
             | 
            
                0.00 / 0.00%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.11
             |                     
            
                1.10
             |                                 
            
                11,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |