| 
                 
                    Closing price on 6/4/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    0.90 | 
                 
                
                    | High | 
                    1.00 | 
                 
                
                    | Low | 
                    0.90 | 
                     
                
                    | Volume | 
                    18,600 | 
                                 
                
                    | Split-adjusted Price | 
                    0.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SPI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/4/2019
             | 
            
                -0.10 / -10.00%
             |             
            
                0.90
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                0.90
             | 
            
                0.90
             |                     
            
                0.90
             |                                 
            
                18,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/3/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                0.98
             |                     
            
                1.00
             |                                 
            
                38,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/31/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                0.97
             |                     
            
                1.00
             |                                 
            
                75,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                16,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/29/2019
             | 
            
                +0.10 / +11.11%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                51,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/28/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.90
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                0.90
             | 
            
                0.91
             |                     
            
                0.90
             |                                 
            
                160,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/27/2019
             | 
            
                -0.10 / -10.00%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                0.90
             | 
            
                0.92
             |                     
            
                0.90
             |                                 
            
                32,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.90
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                0.99
             |                     
            
                1.00
             |                                 
            
                55,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                0.96
             |                     
            
                1.00
             |                                 
            
                50,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                28,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2019
             | 
            
                +0.10 / +11.11%
             |             
            
                0.90
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                130,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.90
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                0.90
             | 
            
                0.93
             |                     
            
                0.90
             |                                 
            
                57,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2019
             | 
            
                -0.10 / -10.00%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                0.90
             |                           
            
                0.90
             | 
            
                0.95
             |                     
            
                0.90
             |                                 
            
                188,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2019
             | 
            
                -0.10 / -9.09%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                128,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2019
             | 
            
                +0.10 / +10.00%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.07
             |                     
            
                1.10
             |                                 
            
                71,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2019
             | 
            
                -0.10 / -9.09%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                133,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/13/2019
             | 
            
                +0.10 / +10.00%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.09
             |                     
            
                1.10
             |                                 
            
                63,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/10/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                246,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                60,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                1.02
             |                     
            
                1.00
             |                                 
            
                44,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                269,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2019
             | 
            
                -0.10 / -9.09%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                203,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2019
             | 
            
                -0.10 / -8.33%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                164,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/2/2019
             | 
            
                +0.10 / +9.09%
             |             
            
                1.00
             |           
            
                1.20
             |               
            
                1.00
             |                           
            
                1.20
             | 
            
                1.19
             |                     
            
                1.20
             |                                 
            
                68,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                211,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2019
             | 
            
                -0.10 / -8.33%
             |             
            
                1.30
             |           
            
                1.30
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.27
             |                     
            
                1.10
             |                                 
            
                973,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/24/2019
             | 
            
                +0.10 / +9.09%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.20
             | 
            
                1.20
             |                     
            
                1.20
             |                                 
            
                166,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2019
             | 
            
                +0.10 / +10.00%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.09
             |                     
            
                1.10
             |                                 
            
                472,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.90
             |           
            
                1.10
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                1.03
             |                     
            
                1.00
             |                                 
            
                83,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.90
             |           
            
                1.10
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                93,800
             |  
            
                 
             |                                                              
             
    
         
    
    
 |