| 
                 
                    Closing price on 3/6/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.00 | 
                 
                
                    | High | 
                    3.00 | 
                 
                
                    | Low | 
                    2.90 | 
                     
                
                    | Volume | 
                    188,400 | 
                                 
                
                    | Split-adjusted Price | 
                    2.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SPI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/6/2018
             | 
            
                -0.10 / -3.33%
             |             
            
                3.00
             |           
            
                3.00
             |               
            
                2.90
             |                           
            
                2.90
             | 
            
                2.99
             |                     
            
                2.90
             |                                 
            
                188,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2018
             | 
            
                +0.10 / +3.45%
             |             
            
                2.90
             |           
            
                3.10
             |               
            
                2.90
             |                           
            
                3.00
             | 
            
                2.96
             |                     
            
                3.00
             |                                 
            
                394,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2018
             | 
            
                +0.20 / +7.41%
             |             
            
                2.70
             |           
            
                2.90
             |               
            
                2.70
             |                           
            
                2.90
             | 
            
                2.80
             |                     
            
                2.90
             |                                 
            
                162,650
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2018
             | 
            
                -0.10 / -3.57%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.78
             |                     
            
                2.70
             |                                 
            
                106,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2018
             | 
            
                -0.20 / -6.67%
             |             
            
                3.00
             |           
            
                3.00
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.91
             |                     
            
                2.80
             |                                 
            
                180,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.00
             |           
            
                3.00
             |               
            
                2.90
             |                           
            
                3.00
             | 
            
                2.94
             |                     
            
                3.00
             |                                 
            
                70,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.00
             |           
            
                3.10
             |               
            
                2.90
             |                           
            
                3.00
             | 
            
                2.98
             |                     
            
                3.00
             |                                 
            
                185,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2018
             | 
            
                -0.10 / -3.23%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                2.90
             |                           
            
                3.00
             | 
            
                3.01
             |                     
            
                3.00
             |                                 
            
                91,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.00
             |           
            
                3.20
             |               
            
                2.90
             |                           
            
                3.10
             | 
            
                3.08
             |                     
            
                3.10
             |                                 
            
                321,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2018
             | 
            
                +0.10 / +3.33%
             |             
            
                2.90
             |           
            
                3.10
             |               
            
                2.90
             |                           
            
                3.10
             | 
            
                2.99
             |                     
            
                3.10
             |                                 
            
                337,622
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.00
             |                           
            
                3.00
             | 
            
                3.07
             |                     
            
                3.00
             |                                 
            
                220,510
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2018
             | 
            
                +0.20 / +7.14%
             |             
            
                3.00
             |           
            
                3.00
             |               
            
                2.90
             |                           
            
                3.00
             | 
            
                3.00
             |                     
            
                3.00
             |                                 
            
                317,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2018
             | 
            
                +0.20 / +7.69%
             |             
            
                2.50
             |           
            
                2.80
             |               
            
                2.40
             |                           
            
                2.80
             | 
            
                2.74
             |                     
            
                2.80
             |                                 
            
                1,246,304
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2018
             | 
            
                +0.10 / +4.00%
             |             
            
                2.50
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.60
             | 
            
                2.57
             |                     
            
                2.60
             |                                 
            
                365,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/7/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.50
             |           
            
                2.60
             |               
            
                2.50
             |                           
            
                2.50
             | 
            
                2.52
             |                     
            
                2.50
             |                                 
            
                363,610
             |            
            
                 
             |                                       
         
    
        
            | 
                2/6/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.30
             |                           
            
                2.50
             | 
            
                2.37
             |                     
            
                2.50
             |                                 
            
                466,215
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/5/2018
             | 
            
                -0.10 / -3.85%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.49
             |                     
            
                2.50
             |                                 
            
                630,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/2/2018
             | 
            
                -0.20 / -7.14%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.60
             |                           
            
                2.60
             | 
            
                2.65
             |                     
            
                2.60
             |                                 
            
                400,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2018
             | 
            
                -0.20 / -6.67%
             |             
            
                3.00
             |           
            
                3.00
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.78
             |                     
            
                2.80
             |                                 
            
                1,025,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2018
             | 
            
                -0.20 / -6.25%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                2.90
             |                           
            
                3.00
             | 
            
                3.02
             |                     
            
                3.00
             |                                 
            
                411,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/30/2018
             | 
            
                +0.20 / +6.67%
             |             
            
                3.00
             |           
            
                3.20
             |               
            
                2.90
             |                           
            
                3.20
             | 
            
                3.08
             |                     
            
                3.20
             |                                 
            
                718,650
             |            
            
                 
             |                                       
         
    
        
            | 
                1/29/2018
             | 
            
                -0.20 / -6.25%
             |             
            
                3.10
             |           
            
                3.20
             |               
            
                2.90
             |                           
            
                3.00
             | 
            
                3.02
             |                     
            
                3.00
             |                                 
            
                617,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.30
             |           
            
                3.30
             |               
            
                3.00
             |                           
            
                3.20
             | 
            
                3.14
             |                     
            
                3.20
             |                                 
            
                214,664
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2018
             | 
            
                -0.10 / -3.03%
             |             
            
                3.30
             |           
            
                3.40
             |               
            
                3.10
             |                           
            
                3.20
             | 
            
                3.22
             |                     
            
                3.20
             |                                 
            
                301,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.30
             |           
            
                3.30
             |               
            
                3.30
             |                           
            
                3.30
             | 
            
                3.30
             |                     
            
                3.30
             |                                 
            
                207,420
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2018
             | 
            
                -0.10 / -2.94%
             |             
            
                3.40
             |           
            
                3.50
             |               
            
                3.20
             |                           
            
                3.30
             | 
            
                3.30
             |                     
            
                3.30
             |                                 
            
                307,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.30
             |                           
            
                3.40
             | 
            
                3.36
             |                     
            
                3.40
             |                                 
            
                414,010
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2018
             | 
            
                -0.10 / -2.86%
             |             
            
                3.40
             |           
            
                3.50
             |               
            
                3.30
             |                           
            
                3.40
             | 
            
                3.40
             |                     
            
                3.40
             |                                 
            
                176,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.40
             |                           
            
                3.50
             | 
            
                3.41
             |                     
            
                3.50
             |                                 
            
                290,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2018
             | 
            
                -0.10 / -2.78%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.40
             |                           
            
                3.50
             | 
            
                3.50
             |                     
            
                3.50
             |                                 
            
                173,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |