| 
                 
                    Closing price on 9/22/2015
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    2.60 | 
                 
                
                    | High | 
                    2.70 | 
                 
                
                    | Low | 
                    2.40 | 
                     
                
                    | Volume | 
                    276,000 | 
                                 
                
                    | Split-adjusted Price | 
                    2.50 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SPI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/22/2015
             | 
            
                -0.10 / -3.85%
             |             
            
                2.60
             |           
            
                2.70
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.53
             |                     
            
                2.50
             |                                 
            
                276,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/21/2015
             | 
            
                -0.20 / -7.14%
             |             
            
                2.80
             |           
            
                2.90
             |               
            
                2.60
             |                           
            
                2.60
             | 
            
                2.75
             |                     
            
                2.60
             |                                 
            
                143,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/18/2015
             | 
            
                +0.20 / +7.69%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.80
             |                     
            
                2.80
             |                                 
            
                463,600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/17/2015
             | 
            
                +0.20 / +8.33%
             |             
            
                2.50
             |           
            
                2.60
             |               
            
                2.50
             |                           
            
                2.60
             | 
            
                2.60
             |                     
            
                2.60
             |                                 
            
                615,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/16/2015
             | 
            
                +0.10 / +4.35%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.37
             |                     
            
                2.40
             |                                 
            
                19,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/15/2015
             | 
            
                -0.20 / -8.00%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.30
             |                           
            
                2.30
             | 
            
                2.42
             |                     
            
                2.30
             |                                 
            
                56,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/14/2015
             | 
            
                -0.20 / -7.41%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.50
             |                           
            
                2.50
             | 
            
                2.55
             |                     
            
                2.50
             |                                 
            
                137,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/11/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.70
             |                     
            
                2.70
             |                                 
            
                31,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/10/2015
             | 
            
                -0.10 / -3.57%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.70
             |                     
            
                2.70
             |                                 
            
                13,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/9/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.74
             |                     
            
                2.80
             |                                 
            
                45,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/8/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.76
             |                     
            
                2.80
             |                                 
            
                38,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/7/2015
             | 
            
                -0.20 / -6.67%
             |             
            
                2.80
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.81
             |                     
            
                2.80
             |                                 
            
                13,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/4/2015
             | 
            
                -0.30 / -9.09%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.00
             |                           
            
                3.00
             | 
            
                3.02
             |                     
            
                3.00
             |                                 
            
                46,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/3/2015
             | 
            
                +0.20 / +6.45%
             |             
            
                3.30
             |           
            
                3.40
             |               
            
                3.20
             |                           
            
                3.30
             | 
            
                3.29
             |                     
            
                3.30
             |                                 
            
                147,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/1/2015
             | 
            
                +0.20 / +6.90%
             |             
            
                2.80
             |           
            
                3.10
             |               
            
                2.70
             |                           
            
                3.10
             | 
            
                2.94
             |                     
            
                3.10
             |                                 
            
                154,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/31/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.90
             | 
            
                2.80
             |                     
            
                2.90
             |                                 
            
                40,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/28/2015
             | 
            
                -0.20 / -6.45%
             |             
            
                3.30
             |           
            
                3.30
             |               
            
                2.90
             |                           
            
                2.90
             | 
            
                3.11
             |                     
            
                2.90
             |                                 
            
                51,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/27/2015
             | 
            
                +0.20 / +6.90%
             |             
            
                3.00
             |           
            
                3.10
             |               
            
                3.00
             |                           
            
                3.10
             | 
            
                3.09
             |                     
            
                3.10
             |                                 
            
                7,646,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/26/2015
             | 
            
                +0.20 / +7.41%
             |             
            
                2.80
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.90
             | 
            
                2.90
             |                     
            
                2.90
             |                                 
            
                32,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/25/2015
             | 
            
                +0.20 / +8.00%
             |             
            
                2.40
             |           
            
                2.70
             |               
            
                2.40
             |                           
            
                2.70
             | 
            
                2.57
             |                     
            
                2.70
             |                                 
            
                102,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/24/2015
             | 
            
                -0.20 / -7.41%
             |             
            
                2.50
             |           
            
                2.80
             |               
            
                2.50
             |                           
            
                2.50
             | 
            
                2.50
             |                     
            
                2.50
             |                                 
            
                23,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/21/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.50
             |                           
            
                2.70
             | 
            
                2.58
             |                     
            
                2.70
             |                                 
            
                15,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2015
             | 
            
                -0.10 / -3.57%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.80
             |                     
            
                2.70
             |                                 
            
                19,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2015
             | 
            
                -0.30 / -9.68%
             |             
            
                3.00
             |           
            
                3.10
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.84
             |                     
            
                2.80
             |                                 
            
                42,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/18/2015
             | 
            
                -0.10 / -3.13%
             |             
            
                2.90
             |           
            
                3.10
             |               
            
                2.90
             |                           
            
                3.10
             | 
            
                3.01
             |                     
            
                3.10
             |                                 
            
                49,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/17/2015
             | 
            
                +0.10 / +3.23%
             |             
            
                3.20
             |           
            
                3.40
             |               
            
                3.00
             |                           
            
                3.20
             | 
            
                3.02
             |                     
            
                3.20
             |                                 
            
                23,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/14/2015
             | 
            
                -0.10 / -3.13%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                2.90
             |                           
            
                3.10
             | 
            
                3.00
             |                     
            
                3.10
             |                                 
            
                32,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2015
             | 
            
                -0.30 / -8.57%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.20
             |                           
            
                3.20
             | 
            
                3.20
             |                     
            
                3.20
             |                                 
            
                41,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/12/2015
             | 
            
                -0.10 / -2.78%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.30
             |                           
            
                3.50
             | 
            
                3.33
             |                     
            
                3.50
             |                                 
            
                31,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/11/2015
             | 
            
                0.00 / 0.00%
             |             
            
                3.50
             |           
            
                3.60
             |               
            
                3.50
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                1,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |