| 
                 
                    Closing price on 10/31/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.90 | 
                 
                
                    | High | 
                    4.90 | 
                 
                
                    | Low | 
                    4.80 | 
                     
                
                    | Volume | 
                    248,270 | 
                                 
                
                    | Split-adjusted Price | 
                    1.84 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VTO Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/31/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.80
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                1.84
             |                                 
            
                248,270
             |            
            
                 
             |                                       
         
    
        
            | 
                10/30/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                5.00
             |               
            
                4.80
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                1.84
             |                                 
            
                187,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                5.00
             |               
            
                4.70
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                1.84
             |                                 
            
                440,230
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2013
             | 
            
                -0.20 / -3.92%
             |             
            
                5.00
             |           
            
                5.20
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                1.84
             |                                 
            
                808,260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2013
             | 
            
                +0.10 / +2.00%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.10
             | 
            
                5.10
             |                     
            
                1.91
             |                                 
            
                415,570
             |            
            
                 
             |                                       
         
    
        
            | 
                10/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                5.00
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                1.87
             |                                 
            
                707,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/23/2013
             | 
            
                -0.10 / -1.96%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                1.87
             |                                 
            
                962,520
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2013
             | 
            
                +0.20 / +4.08%
             |             
            
                5.00
             |           
            
                5.20
             |               
            
                4.90
             |                           
            
                5.10
             | 
            
                5.10
             |                     
            
                1.91
             |                                 
            
                985,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2013
             | 
            
                +0.30 / +6.52%
             |             
            
                4.70
             |           
            
                4.90
             |               
            
                4.70
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                1.84
             |                                 
            
                764,250
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.60
             |           
            
                4.80
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                1.72
             |                                 
            
                619,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/17/2013
             | 
            
                +0.30 / +6.98%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                1.72
             |                                 
            
                957,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/16/2013
             | 
            
                +0.20 / +4.88%
             |             
            
                4.10
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.61
             |                                 
            
                666,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/15/2013
             | 
            
                -0.10 / -2.38%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.54
             |                                 
            
                162,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/14/2013
             | 
            
                +0.10 / +2.44%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.57
             |                                 
            
                147,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/11/2013
             | 
            
                +0.20 / +5.13%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.54
             |                                 
            
                216,210
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2013
             | 
            
                -0.10 / -2.50%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.46
             |                                 
            
                182,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.50
             |                                 
            
                207,710
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2013
             | 
            
                -0.10 / -2.44%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.50
             |                                 
            
                84,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2013
             | 
            
                +0.20 / +5.13%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.54
             |                                 
            
                440,170
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2013
             | 
            
                -0.10 / -2.50%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.46
             |                                 
            
                36,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.50
             |                                 
            
                185,530
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2013
             | 
            
                -0.10 / -2.44%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.50
             |                                 
            
                132,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2013
             | 
            
                +0.10 / +2.50%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.54
             |                                 
            
                141,970
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2013
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.50
             |                                 
            
                83,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2013
             | 
            
                -0.10 / -2.50%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.46
             |                                 
            
                47,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.50
             |                                 
            
                55,260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2013
             | 
            
                +0.10 / +2.56%
             |             
            
                3.80
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.50
             |                                 
            
                159,410
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2013
             | 
            
                +0.10 / +2.63%
             |             
            
                3.70
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.46
             |                                 
            
                167,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2013
             | 
            
                +0.10 / +2.70%
             |             
            
                3.70
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                1.42
             |                                 
            
                43,990
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                1.39
             |                                 
            
                29,520
             |  
            
                 
             |                                                              
             
    
         
    
    
 |