| 
                 
                    Closing price on 5/18/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    27.00 | 
                 
                
                    | High | 
                    27.10 | 
                 
                
                    | Low | 
                    26.00 | 
                     
                
                    | Volume | 
                    60,150 | 
                                 
                
                    | Split-adjusted Price | 
                    3.46 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VHC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/18/2011
             | 
            
                -0.10 / -0.37%
             |             
            
                27.00
             |           
            
                27.10
             |               
            
                26.00
             |                           
            
                27.10
             | 
            
                27.10
             |                     
            
                3.46
             |                                 
            
                60,150
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2011
             | 
            
                +0.30 / +1.12%
             |             
            
                27.00
             |           
            
                27.20
             |               
            
                26.80
             |                           
            
                27.20
             | 
            
                27.20
             |                     
            
                3.47
             |                                 
            
                113,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2011
             | 
            
                -0.10 / -0.37%
             |             
            
                25.70
             |           
            
                27.90
             |               
            
                25.70
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                3.43
             |                                 
            
                7,960
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2011
             | 
            
                +0.30 / +1.12%
             |             
            
                27.00
             |           
            
                27.00
             |               
            
                26.70
             |                           
            
                27.00
             | 
            
                27.00
             |                     
            
                3.45
             |                                 
            
                11,360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/12/2011
             | 
            
                +0.90 / +3.49%
             |             
            
                26.30
             |           
            
                26.70
             |               
            
                26.20
             |                           
            
                26.70
             | 
            
                26.70
             |                     
            
                3.41
             |                                 
            
                11,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/11/2011
             | 
            
                +0.30 / +1.18%
             |             
            
                25.00
             |           
            
                25.80
             |               
            
                25.00
             |                           
            
                25.80
             | 
            
                25.80
             |                     
            
                3.29
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2011
             | 
            
                +0.50 / +2.00%
             |             
            
                25.40
             |           
            
                25.50
             |               
            
                25.00
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                3.25
             |                                 
            
                18,010
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2011
             | 
            
                +0.40 / +1.63%
             |             
            
                24.60
             |           
            
                25.00
             |               
            
                24.20
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                3.19
             |                                 
            
                3,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2011
             | 
            
                +0.30 / +1.23%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.00
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                3.14
             |                                 
            
                24,350
             |            
            
                 
             |                                       
         
    
        
            | 
                5/5/2011
             | 
            
                +0.50 / +2.10%
             |             
            
                23.00
             |           
            
                24.40
             |               
            
                23.00
             |                           
            
                24.30
             | 
            
                24.30
             |                     
            
                3.10
             |                                 
            
                46,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/4/2011
             | 
            
                +0.90 / +3.93%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                23.80
             |                           
            
                23.80
             | 
            
                23.80
             |                     
            
                3.04
             |                                 
            
                610
             |            
            
                 
             |                                       
         
    
        
            | 
                4/29/2011
             | 
            
                -0.60 / -2.55%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                22.90
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                2.92
             |                                 
            
                5,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/28/2011
             | 
            
                -0.50 / -2.08%
             |             
            
                23.50
             |           
            
                23.50
             |               
            
                23.50
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                3.00
             |                                 
            
                850
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                3.06
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2011
             | 
            
                0.00 / 0.00%
             |             
            
                23.50
             |           
            
                24.00
             |               
            
                23.50
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                3.06
             |                                 
            
                4,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2011
             | 
            
                +0.50 / +2.13%
             |             
            
                23.50
             |           
            
                24.10
             |               
            
                23.50
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                3.06
             |                                 
            
                88,130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2011
             | 
            
                +0.50 / +2.17%
             |             
            
                22.70
             |           
            
                23.50
             |               
            
                22.70
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                3.00
             |                                 
            
                1,330
             |            
            
                 
             |                                       
         
    
        
            | 
                4/21/2011
             | 
            
                -0.40 / -1.71%
             |             
            
                23.50
             |           
            
                23.50
             |               
            
                22.50
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                2.94
             |                                 
            
                2,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/20/2011
             | 
            
                -0.10 / -0.43%
             |             
            
                23.40
             |           
            
                23.40
             |               
            
                23.40
             |                           
            
                23.40
             | 
            
                23.40
             |                     
            
                2.99
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2011
             | 
            
                0.00 / 0.00%
             |             
            
                22.40
             |           
            
                23.50
             |               
            
                22.40
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                3.00
             |                                 
            
                520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2011
             | 
            
                +0.40 / +1.73%
             |             
            
                22.00
             |           
            
                23.50
             |               
            
                22.00
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                3.00
             |                                 
            
                1,320
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2011
             | 
            
                +0.30 / +1.32%
             |             
            
                23.10
             |           
            
                23.10
             |               
            
                23.10
             |                           
            
                23.10
             | 
            
                23.10
             |                     
            
                2.95
             |                                 
            
                54,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                22.20
             |           
            
                22.80
             |               
            
                22.20
             |                           
            
                22.80
             | 
            
                22.80
             |                     
            
                2.91
             |                                 
            
                460
             |            
            
                 
             |                                       
         
    
        
            | 
                4/13/2011
             | 
            
                -1.00 / -4.20%
             |             
            
                24.10
             |           
            
                24.10
             |               
            
                22.80
             |                           
            
                22.80
             | 
            
                22.80
             |                     
            
                2.91
             |                                 
            
                340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2011
             | 
            
                +0.80 / +3.48%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                23.80
             |                           
            
                23.80
             | 
            
                23.80
             |                     
            
                3.04
             |                                 
            
                20
             |            
            
                 
             |                                       
         
    
        
            | 
                4/7/2011
             | 
            
                -0.80 / -3.36%
             |             
            
                23.00
             |           
            
                23.00
             |               
            
                23.00
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                2.94
             |                                 
            
                10
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/6/2011
             | 
            
                +0.80 / +3.48%
             |             
            
                23.00
             |           
            
                23.80
             |               
            
                23.00
             |                           
            
                23.80
             | 
            
                23.80
             |                     
            
                3.04
             |                                 
            
                390
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2011
             | 
            
                -1.20 / -4.96%
             |             
            
                24.10
             |           
            
                24.10
             |               
            
                23.00
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                2.94
             |                                 
            
                6,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2011
             | 
            
                +0.10 / +0.41%
             |             
            
                23.20
             |           
            
                24.20
             |               
            
                23.20
             |                           
            
                24.20
             | 
            
                24.20
             |                     
            
                3.09
             |                                 
            
                230
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2011
             | 
            
                +0.50 / +2.12%
             |             
            
                24.10
             |           
            
                24.10
             |               
            
                24.10
             |                           
            
                24.10
             | 
            
                24.10
             |                     
            
                3.08
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |