| 
                 
                    Closing price on 10/1/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.00 | 
                 
                
                    | High | 
                    4.00 | 
                 
                
                    | Low | 
                    3.90 | 
                     
                
                    | Volume | 
                    63,700 | 
                                 
                
                    | Split-adjusted Price | 
                    3.43 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
IVS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.93
             |                     
            
                3.43
             |                                 
            
                63,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2013
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                3.43
             |                                 
            
                30,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2013
             | 
            
                -0.10 / -2.50%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.35
             |                                 
            
                31,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                3.89
             |                     
            
                3.43
             |                                 
            
                26,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2013
             | 
            
                +0.20 / +5.26%
             |             
            
                3.70
             |           
            
                4.00
             |               
            
                3.70
             |                           
            
                4.00
             | 
            
                3.84
             |                     
            
                3.43
             |                                 
            
                73,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.80
             | 
            
                3.64
             |                     
            
                3.26
             |                                 
            
                22,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.70
             |                     
            
                3.26
             |                                 
            
                20,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.77
             |                     
            
                3.26
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.70
             |                     
            
                3.26
             |                                 
            
                7,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.73
             |                     
            
                3.26
             |                                 
            
                20,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.71
             |                     
            
                3.26
             |                                 
            
                14,600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.73
             |                     
            
                3.26
             |                                 
            
                8,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/13/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                3.26
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.70
             |                     
            
                3.26
             |                                 
            
                28,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                3.26
             |                                 
            
                2,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.71
             |                     
            
                3.26
             |                                 
            
                21,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.80
             | 
            
                3.70
             |                     
            
                3.26
             |                                 
            
                7,600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.73
             |                     
            
                3.26
             |                                 
            
                7,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2013
             | 
            
                +0.10 / +2.70%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.70
             |                     
            
                3.26
             |                                 
            
                10,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2013
             | 
            
                -0.10 / -2.63%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.80
             |                     
            
                3.18
             |                                 
            
                39,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2013
             | 
            
                -0.10 / -2.56%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                3.26
             |                                 
            
                29,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2013
             | 
            
                +0.20 / +5.41%
             |             
            
                3.80
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.90
             | 
            
                3.79
             |                     
            
                3.35
             |                                 
            
                38,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2013
             | 
            
                -0.10 / -2.63%
             |             
            
                3.80
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.80
             |                     
            
                3.18
             |                                 
            
                46,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2013
             | 
            
                -0.20 / -5.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.86
             |                     
            
                3.26
             |                                 
            
                25,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                3.43
             |                                 
            
                57,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2013
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                3.43
             |                                 
            
                30,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.89
             |                     
            
                3.35
             |                                 
            
                29,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/22/2013
             | 
            
                -0.10 / -2.50%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.93
             |                     
            
                3.35
             |                                 
            
                60,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2013
             | 
            
                +0.10 / +2.56%
             |             
            
                3.80
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                3.86
             |                     
            
                3.43
             |                                 
            
                96,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2013
             | 
            
                -0.10 / -2.50%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.35
             |                                 
            
                37,300
             |  
            
                 
             |                                                              
             
    
         
    
    
 |