| 
                 
                    Closing price on 8/26/2015
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    2.80 | 
                 
                
                    | High | 
                    2.90 | 
                 
                
                    | Low | 
                    2.80 | 
                     
                
                    | Volume | 
                    32,600 | 
                                 
                
                    | Split-adjusted Price | 
                    2.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SPI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/10/2015
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.40
             |                           
            
                3.60
             | 
            
                3.52
             |                     
            
                3.60
             |                                 
            
                8,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/7/2015
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.70
             |               
            
                3.40
             |                           
            
                3.60
             | 
            
                3.53
             |                     
            
                3.60
             |                                 
            
                26,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/6/2015
             | 
            
                -0.10 / -2.70%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.50
             |                           
            
                3.60
             | 
            
                3.69
             |                     
            
                3.60
             |                                 
            
                362,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2015
             | 
            
                0.00 / 0.00%
             |             
            
                3.50
             |           
            
                3.80
             |               
            
                3.50
             |                           
            
                3.70
             | 
            
                3.64
             |                     
            
                3.70
             |                                 
            
                48,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/4/2015
             | 
            
                -0.20 / -5.13%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.63
             |                     
            
                3.70
             |                                 
            
                87,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/3/2015
             | 
            
                +0.10 / +2.63%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                3.60
             |                           
            
                3.90
             | 
            
                4.00
             |                     
            
                3.90
             |                                 
            
                419,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/31/2015
             | 
            
                +0.30 / +8.57%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                3.80
             |                                 
            
                32,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2015
             | 
            
                +0.30 / +9.38%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.50
             |                     
            
                3.50
             |                                 
            
                34,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2015
             | 
            
                -0.30 / -8.57%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.20
             |                           
            
                3.20
             | 
            
                3.40
             |                     
            
                3.20
             |                                 
            
                104,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/28/2015
             | 
            
                -0.30 / -7.89%
             |             
            
                3.80
             |           
            
                3.90
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.80
             |                     
            
                3.50
             |                                 
            
                90,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/27/2015
             | 
            
                -0.40 / -9.52%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                4.25
             |                     
            
                3.80
             |                                 
            
                27,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2015
             | 
            
                -0.20 / -4.55%
             |             
            
                4.20
             |           
            
                4.40
             |               
            
                4.00
             |                           
            
                4.20
             | 
            
                4.14
             |                     
            
                4.20
             |                                 
            
                10,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2015
             | 
            
                -0.10 / -2.22%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.45
             |                     
            
                4.40
             |                                 
            
                10,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2015
             | 
            
                -0.10 / -2.17%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                4.50
             |                                 
            
                14,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/21/2015
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.70
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.55
             |                     
            
                4.60
             |                                 
            
                34,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2015
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.70
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.51
             |                     
            
                4.60
             |                                 
            
                43,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2015
             | 
            
                0.00 / 0.00%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.56
             |                     
            
                4.60
             |                                 
            
                24,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2015
             | 
            
                -0.10 / -2.13%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.60
             |                                 
            
                21,800
             |  
            
                 
             |                                                              
             
    
         
    
    
 |