| 
                 
                    Closing price on 9/30/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    1.40 | 
                 
                
                    | High | 
                    1.50 | 
                 
                
                    | Low | 
                    1.40 | 
                     
                
                    | Volume | 
                    161,700 | 
                                 
                
                    | Split-adjusted Price | 
                    1.40 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SPI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/30/2019
             | 
            
                -0.10 / -6.67%
             |             
            
                1.40
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                161,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/27/2019
             | 
            
                +0.10 / +7.14%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.30
             |                           
            
                1.50
             | 
            
                1.44
             |                     
            
                1.50
             |                                 
            
                212,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/26/2019
             | 
            
                +0.10 / +7.69%
             |             
            
                1.40
             |           
            
                1.40
             |               
            
                1.30
             |                           
            
                1.40
             | 
            
                1.38
             |                     
            
                1.40
             |                                 
            
                331,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/25/2019
             | 
            
                +0.10 / +8.33%
             |             
            
                1.20
             |           
            
                1.30
             |               
            
                1.20
             |                           
            
                1.30
             | 
            
                1.29
             |                     
            
                1.30
             |                                 
            
                384,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/24/2019
             | 
            
                -0.10 / -7.69%
             |             
            
                1.40
             |           
            
                1.40
             |               
            
                1.20
             |                           
            
                1.20
             | 
            
                1.26
             |                     
            
                1.20
             |                                 
            
                105,600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/23/2019
             | 
            
                -0.10 / -7.14%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.30
             |                           
            
                1.30
             | 
            
                1.36
             |                     
            
                1.30
             |                                 
            
                271,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/20/2019
             | 
            
                +0.10 / +7.69%
             |             
            
                1.30
             |           
            
                1.40
             |               
            
                1.20
             |                           
            
                1.40
             | 
            
                1.35
             |                     
            
                1.40
             |                                 
            
                546,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/19/2019
             | 
            
                +0.10 / +8.33%
             |             
            
                1.20
             |           
            
                1.30
             |               
            
                1.20
             |                           
            
                1.30
             | 
            
                1.26
             |                     
            
                1.30
             |                                 
            
                474,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/18/2019
             | 
            
                +0.10 / +9.09%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.20
             | 
            
                1.19
             |                     
            
                1.20
             |                                 
            
                228,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/17/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                39,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                454,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/13/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.15
             |                     
            
                1.10
             |                                 
            
                230,222
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/12/2019
             | 
            
                -0.10 / -8.33%
             |             
            
                1.30
             |           
            
                1.30
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.17
             |                     
            
                1.10
             |                                 
            
                284,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/11/2019
             | 
            
                +0.10 / +9.09%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.20
             | 
            
                1.20
             |                     
            
                1.20
             |                                 
            
                847,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/10/2019
             | 
            
                +0.10 / +10.00%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                285,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/9/2019
             | 
            
                +0.10 / +11.11%
             |             
            
                0.90
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                197,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/6/2019
             | 
            
                -0.10 / -10.00%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                0.90
             |                           
            
                0.90
             | 
            
                1.00
             |                     
            
                0.90
             |                                 
            
                88,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/5/2019
             | 
            
                +0.10 / +11.11%
             |             
            
                0.90
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                163,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/4/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                0.90
             | 
            
                0.90
             |                     
            
                0.90
             |                                 
            
                19,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/3/2019
             | 
            
                -0.10 / -10.00%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                0.90
             | 
            
                0.97
             |                     
            
                0.90
             |                                 
            
                104,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/30/2019
             | 
            
                -0.10 / -9.09%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                279,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2019
             | 
            
                +0.10 / +10.00%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.01
             |                     
            
                1.10
             |                                 
            
                337,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/28/2019
             | 
            
                +0.10 / +11.11%
             |             
            
                0.90
             |           
            
                1.00
             |               
            
                0.80
             |                           
            
                1.00
             | 
            
                0.90
             |                     
            
                1.00
             |                                 
            
                264,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/27/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.90
             |           
            
                0.90
             |               
            
                0.80
             |                           
            
                0.90
             | 
            
                0.90
             |                     
            
                0.90
             |                                 
            
                7,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/26/2019
             | 
            
                +0.10 / +12.50%
             |             
            
                0.80
             |           
            
                0.90
             |               
            
                0.80
             |                           
            
                0.90
             | 
            
                0.85
             |                     
            
                0.90
             |                                 
            
                49,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.90
             |           
            
                0.90
             |               
            
                0.80
             |                           
            
                0.80
             | 
            
                0.83
             |                     
            
                0.80
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.90
             |           
            
                0.90
             |               
            
                0.80
             |                           
            
                0.80
             | 
            
                0.82
             |                     
            
                0.80
             |                                 
            
                24,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/21/2019
             | 
            
                -0.10 / -11.11%
             |             
            
                0.80
             |           
            
                0.90
             |               
            
                0.80
             |                           
            
                0.80
             | 
            
                0.81
             |                     
            
                0.80
             |                                 
            
                29,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2019
             | 
            
                +0.10 / +12.50%
             |             
            
                0.80
             |           
            
                0.90
             |               
            
                0.80
             |                           
            
                0.90
             | 
            
                0.89
             |                     
            
                0.90
             |                                 
            
                29,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2019
             | 
            
                -0.10 / -11.11%
             |             
            
                0.80
             |           
            
                0.90
             |               
            
                0.80
             |                           
            
                0.80
             | 
            
                0.80
             |                     
            
                0.80
             |                                 
            
                37,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |