| 
                 
                    Closing price on 6/2/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    2.50 | 
                 
                
                    | High | 
                    2.60 | 
                 
                
                    | Low | 
                    2.40 | 
                     
                
                    | Volume | 
                    1,581,810 | 
                                 
                
                    | Split-adjusted Price | 
                    2.60 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SPI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/2/2017
             | 
            
                +0.20 / +8.33%
             |             
            
                2.50
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.60
             | 
            
                2.51
             |                     
            
                2.60
             |                                 
            
                1,581,810
             |            
            
                 
             |                                       
         
    
        
            | 
                6/1/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.40
             |                     
            
                2.40
             |                                 
            
                345,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/31/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.40
             |                           
            
                2.40
             | 
            
                2.40
             |                     
            
                2.40
             |                                 
            
                899,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2017
             | 
            
                -0.20 / -7.69%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.40
             | 
            
                2.41
             |                     
            
                2.40
             |                                 
            
                372,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/29/2017
             | 
            
                +0.10 / +4.00%
             |             
            
                2.50
             |           
            
                2.60
             |               
            
                2.50
             |                           
            
                2.60
             | 
            
                2.53
             |                     
            
                2.60
             |                                 
            
                255,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/26/2017
             | 
            
                -0.20 / -7.41%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.50
             |                           
            
                2.50
             | 
            
                2.57
             |                     
            
                2.50
             |                                 
            
                3,618,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/25/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.50
             |                           
            
                2.70
             | 
            
                2.73
             |                     
            
                2.70
             |                                 
            
                1,206,520
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2017
             | 
            
                +0.20 / +8.00%
             |             
            
                2.50
             |           
            
                2.70
             |               
            
                2.50
             |                           
            
                2.70
             | 
            
                2.67
             |                     
            
                2.70
             |                                 
            
                502,130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2017
             | 
            
                +0.10 / +4.17%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.45
             |                     
            
                2.50
             |                                 
            
                1,057,990
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2017
             | 
            
                +0.10 / +4.35%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.40
             | 
            
                2.36
             |                     
            
                2.40
             |                                 
            
                527,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2017
             | 
            
                +0.10 / +4.55%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.29
             |                     
            
                2.30
             |                                 
            
                298,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2017
             | 
            
                -0.10 / -4.35%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.20
             | 
            
                2.27
             |                     
            
                2.20
             |                                 
            
                174,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.30
             | 
            
                2.30
             |                     
            
                2.30
             |                                 
            
                64,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.30
             | 
            
                2.30
             |                     
            
                2.30
             |                                 
            
                203,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2017
             | 
            
                +0.10 / +4.55%
             |             
            
                2.20
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.25
             |                     
            
                2.30
             |                                 
            
                338,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                104,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/11/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                66,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/10/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                170,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                129,650
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                116,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.17
             |                     
            
                2.20
             |                                 
            
                158,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.19
             |                     
            
                2.20
             |                                 
            
                45,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2017
             | 
            
                +0.10 / +4.76%
             |             
            
                2.10
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.10
             |                     
            
                2.20
             |                                 
            
                112,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2017
             | 
            
                -0.10 / -4.55%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.20
             |                     
            
                2.10
             |                                 
            
                107,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                41,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2017
             | 
            
                -0.10 / -4.35%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.20
             | 
            
                2.30
             |                     
            
                2.20
             |                                 
            
                205,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2017
             | 
            
                +0.10 / +4.55%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.20
             |                     
            
                2.30
             |                                 
            
                95,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                220,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2017
             | 
            
                -0.10 / -4.35%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.20
             | 
            
                2.21
             |                     
            
                2.20
             |                                 
            
                238,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.30
             |                     
            
                2.30
             |                                 
            
                74,410
             |  
            
                 
             |                                                              
             
    
         
    
    
 |