| 
                 
                    Closing price on 5/20/2014
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.00 | 
                 
                
                    | High | 
                    6.30 | 
                 
                
                    | Low | 
                    5.80 | 
                     
                
                    | Volume | 
                    534,540 | 
                                 
                
                    | Split-adjusted Price | 
                    2.49 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VTO Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/20/2014
             | 
            
                +0.20 / +3.28%
             |             
            
                6.00
             |           
            
                6.30
             |               
            
                5.80
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                2.49
             |                                 
            
                534,540
             |            
            
                 
             |                                       
         
    
        
            | 
                5/19/2014
             | 
            
                +0.30 / +5.17%
             |             
            
                5.60
             |           
            
                6.10
             |               
            
                5.60
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                2.41
             |                                 
            
                310,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2014
             | 
            
                +0.20 / +3.57%
             |             
            
                5.50
             |           
            
                5.80
             |               
            
                5.40
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                2.29
             |                                 
            
                228,820
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2014
             | 
            
                -0.30 / -5.08%
             |             
            
                5.60
             |           
            
                5.90
             |               
            
                5.40
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                2.21
             |                                 
            
                311,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2014
             | 
            
                +0.30 / +5.36%
             |             
            
                5.40
             |           
            
                5.90
             |               
            
                5.40
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                2.21
             |                                 
            
                251,530
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2014
             | 
            
                -0.40 / -6.67%
             |             
            
                5.60
             |           
            
                5.80
             |               
            
                5.60
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                2.10
             |                                 
            
                589,780
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/12/2014
             | 
            
                -0.40 / -6.25%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.00
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                2.25
             |                                 
            
                68,570
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2014
             | 
            
                +0.10 / +1.59%
             |             
            
                6.10
             |           
            
                6.40
             |               
            
                6.00
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                2.40
             |                                 
            
                294,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2014
             | 
            
                -0.40 / -5.97%
             |             
            
                6.60
             |           
            
                6.60
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                2.36
             |                                 
            
                236,980
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2014
             | 
            
                +0.10 / +1.52%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.60
             |                           
            
                6.70
             | 
            
                6.70
             |                     
            
                2.51
             |                                 
            
                200,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2014
             | 
            
                -0.40 / -5.71%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.60
             |                           
            
                6.60
             | 
            
                6.60
             |                     
            
                2.47
             |                                 
            
                871,880
             |            
            
                 
             |                                       
         
    
        
            | 
                5/5/2014
             | 
            
                -0.20 / -2.78%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                6.80
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                2.62
             |                                 
            
                233,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/29/2014
             | 
            
                0.00 / 0.00%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                7.00
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                2.70
             |                                 
            
                111,090
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2014
             | 
            
                -0.10 / -1.37%
             |             
            
                7.40
             |           
            
                7.50
             |               
            
                7.10
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                2.70
             |                                 
            
                224,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2014
             | 
            
                -0.40 / -5.19%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                2.73
             |                                 
            
                252,810
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2014
             | 
            
                +0.10 / +1.32%
             |             
            
                7.60
             |           
            
                7.80
             |               
            
                7.50
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                2.88
             |                                 
            
                128,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2014
             | 
            
                +0.10 / +1.33%
             |             
            
                7.50
             |           
            
                7.70
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                2.85
             |                                 
            
                219,890
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2014
             | 
            
                +0.20 / +2.74%
             |             
            
                7.30
             |           
            
                7.60
             |               
            
                7.00
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                2.81
             |                                 
            
                444,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2014
             | 
            
                -0.50 / -6.41%
             |             
            
                7.70
             |           
            
                7.80
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                2.73
             |                                 
            
                349,240
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2014
             | 
            
                -0.50 / -6.02%
             |             
            
                8.30
             |           
            
                8.30
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                2.92
             |                                 
            
                387,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2014
             | 
            
                +0.30 / +3.75%
             |             
            
                8.00
             |           
            
                8.40
             |               
            
                8.00
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                3.11
             |                                 
            
                333,250
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2014
             | 
            
                -0.10 / -1.23%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                7.70
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                3.00
             |                                 
            
                712,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/15/2014
             | 
            
                -0.40 / -4.71%
             |             
            
                8.40
             |           
            
                8.50
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                3.03
             |                                 
            
                429,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2014
             | 
            
                -0.30 / -3.41%
             |             
            
                8.70
             |           
            
                8.70
             |               
            
                8.40
             |                           
            
                8.50
             | 
            
                8.50
             |                     
            
                3.18
             |                                 
            
                248,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2014
             | 
            
                -0.10 / -1.12%
             |             
            
                8.80
             |           
            
                8.90
             |               
            
                8.70
             |                           
            
                8.80
             | 
            
                8.80
             |                     
            
                3.30
             |                                 
            
                292,550
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2014
             | 
            
                +0.10 / +1.14%
             |             
            
                8.80
             |           
            
                9.00
             |               
            
                8.80
             |                           
            
                8.90
             | 
            
                8.90
             |                     
            
                3.33
             |                                 
            
                665,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2014
             | 
            
                +0.20 / +2.33%
             |             
            
                8.60
             |           
            
                8.80
             |               
            
                8.60
             |                           
            
                8.80
             | 
            
                8.80
             |                     
            
                3.30
             |                                 
            
                638,810
             |            
            
                 
             |                                       
         
    
        
            | 
                4/7/2014
             | 
            
                +0.20 / +2.38%
             |             
            
                8.30
             |           
            
                8.70
             |               
            
                8.30
             |                           
            
                8.60
             | 
            
                8.60
             |                     
            
                3.22
             |                                 
            
                312,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2014
             | 
            
                -0.10 / -1.18%
             |             
            
                8.50
             |           
            
                8.60
             |               
            
                8.30
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                3.15
             |                                 
            
                245,280
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2014
             | 
            
                +0.50 / +6.25%
             |             
            
                8.00
             |           
            
                8.50
             |               
            
                8.00
             |                           
            
                8.50
             | 
            
                8.50
             |                     
            
                3.18
             |                                 
            
                612,380
             |  
            
                 
             |                                                              
             
    
         
    
    
 |