| 
                 
                    Closing price on 3/8/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    2.60 | 
                 
                
                    | High | 
                    2.70 | 
                 
                
                    | Low | 
                    2.50 | 
                     
                
                    | Volume | 
                    121,400 | 
                                 
                
                    | Split-adjusted Price | 
                    2.70 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SPI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/8/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.60
             |           
            
                2.70
             |               
            
                2.50
             |                           
            
                2.70
             | 
            
                2.70
             |                     
            
                2.70
             |                                 
            
                121,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.50
             |                           
            
                2.70
             | 
            
                2.60
             |                     
            
                2.70
             |                                 
            
                501,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2017
             | 
            
                -0.10 / -3.57%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.60
             |                           
            
                2.70
             | 
            
                2.80
             |                     
            
                2.70
             |                                 
            
                442,120
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.73
             |                     
            
                2.80
             |                                 
            
                226,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2017
             | 
            
                +0.20 / +7.69%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.60
             |                           
            
                2.80
             | 
            
                2.78
             |                     
            
                2.80
             |                                 
            
                1,456,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2017
             | 
            
                -0.10 / -3.70%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.50
             |                           
            
                2.60
             | 
            
                2.64
             |                     
            
                2.60
             |                                 
            
                532,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2017
             | 
            
                +0.20 / +8.00%
             |             
            
                2.50
             |           
            
                2.70
             |               
            
                2.50
             |                           
            
                2.70
             | 
            
                2.67
             |                     
            
                2.70
             |                                 
            
                859,550
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2017
             | 
            
                -0.10 / -3.85%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.51
             |                     
            
                2.50
             |                                 
            
                499,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2017
             | 
            
                -0.10 / -3.70%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.60
             |                           
            
                2.60
             | 
            
                2.72
             |                     
            
                2.60
             |                                 
            
                486,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2017
             | 
            
                +0.20 / +8.00%
             |             
            
                2.50
             |           
            
                2.70
             |               
            
                2.50
             |                           
            
                2.70
             | 
            
                2.68
             |                     
            
                2.70
             |                                 
            
                572,815
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2017
             | 
            
                -0.20 / -7.41%
             |             
            
                2.60
             |           
            
                2.80
             |               
            
                2.50
             |                           
            
                2.50
             | 
            
                2.62
             |                     
            
                2.50
             |                                 
            
                417,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2017
             | 
            
                -0.20 / -6.90%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.89
             |                     
            
                2.70
             |                                 
            
                1,505,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/20/2017
             | 
            
                +0.20 / +7.41%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.90
             |                           
            
                2.90
             | 
            
                2.90
             |                     
            
                2.90
             |                                 
            
                130,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2017
             | 
            
                +0.20 / +8.00%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.70
             |                     
            
                2.70
             |                                 
            
                319,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/16/2017
             | 
            
                +0.20 / +8.70%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.49
             |                     
            
                2.50
             |                                 
            
                332,850
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2017
             | 
            
                +0.10 / +4.55%
             |             
            
                2.20
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.29
             |                     
            
                2.30
             |                                 
            
                361,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2017
             | 
            
                -0.20 / -8.33%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.20
             | 
            
                2.27
             |                     
            
                2.20
             |                                 
            
                179,900
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.20
             |                           
            
                2.40
             | 
            
                2.30
             |                     
            
                2.40
             |                                 
            
                197,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/10/2017
             | 
            
                +0.20 / +9.09%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.36
             |                     
            
                2.40
             |                                 
            
                620,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                208,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2017
             | 
            
                +0.10 / +4.76%
             |             
            
                2.10
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.21
             |                     
            
                2.20
             |                                 
            
                151,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2017
             | 
            
                -0.10 / -4.55%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.20
             |                     
            
                2.10
             |                                 
            
                76,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.16
             |                     
            
                2.20
             |                                 
            
                229,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/3/2017
             | 
            
                -0.20 / -8.33%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.20
             | 
            
                2.27
             |                     
            
                2.20
             |                                 
            
                93,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/2/2017
             | 
            
                +0.20 / +9.09%
             |             
            
                2.10
             |           
            
                2.40
             |               
            
                2.10
             |                           
            
                2.40
             | 
            
                2.20
             |                     
            
                2.40
             |                                 
            
                203,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2017
             | 
            
                +0.10 / +4.76%
             |             
            
                2.00
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.20
             | 
            
                2.10
             |                     
            
                2.20
             |                                 
            
                52,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.10
             | 
            
                2.00
             |                     
            
                2.10
             |                                 
            
                86,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2017
             | 
            
                +0.10 / +5.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.10
             | 
            
                1.98
             |                     
            
                2.10
             |                                 
            
                91,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2017
             | 
            
                -0.10 / -4.76%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                195,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2017
             | 
            
                +0.10 / +5.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.10
             | 
            
                2.01
             |                     
            
                2.10
             |                                 
            
                137,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |