| 
                 
                    Closing price on 3/24/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    24.40 | 
                 
                
                    | High | 
                    24.40 | 
                 
                
                    | Low | 
                    24.00 | 
                     
                
                    | Volume | 
                    4,660 | 
                                 
                
                    | Split-adjusted Price | 
                    3.06 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VHC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/24/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.40
             |           
            
                24.40
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                3.06
             |                                 
            
                4,660
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2011
             | 
            
                -0.50 / -2.04%
             |             
            
                23.50
             |           
            
                24.50
             |               
            
                23.50
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                3.06
             |                                 
            
                29,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2011
             | 
            
                -0.20 / -0.81%
             |             
            
                24.50
             |           
            
                24.70
             |               
            
                24.20
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                3.13
             |                                 
            
                22,010
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2011
             | 
            
                +0.70 / +2.92%
             |             
            
                25.00
             |           
            
                25.20
             |               
            
                24.50
             |                           
            
                24.70
             | 
            
                24.70
             |                     
            
                3.15
             |                                 
            
                11,160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2011
             | 
            
                +1.10 / +4.80%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                3.06
             |                                 
            
                40,950
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2011
             | 
            
                -0.80 / -3.38%
             |             
            
                23.70
             |           
            
                24.80
             |               
            
                22.70
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                2.92
             |                                 
            
                46,130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2011
             | 
            
                +0.20 / +0.85%
             |             
            
                24.40
             |           
            
                24.40
             |               
            
                23.70
             |                           
            
                23.70
             | 
            
                23.70
             |                     
            
                3.02
             |                                 
            
                113,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2011
             | 
            
                -0.90 / -3.69%
             |             
            
                23.50
             |           
            
                23.50
             |               
            
                23.50
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                3.00
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2011
             | 
            
                +0.80 / +3.39%
             |             
            
                23.10
             |           
            
                24.40
             |               
            
                23.10
             |                           
            
                24.40
             | 
            
                24.40
             |                     
            
                3.11
             |                                 
            
                1,910
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2011
             | 
            
                -0.80 / -3.28%
             |             
            
                24.40
             |           
            
                24.40
             |               
            
                23.60
             |                           
            
                23.60
             | 
            
                23.60
             |                     
            
                3.01
             |                                 
            
                15,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2011
             | 
            
                +1.10 / +4.72%
             |             
            
                23.30
             |           
            
                24.40
             |               
            
                23.30
             |                           
            
                24.40
             | 
            
                24.40
             |                     
            
                3.11
             |                                 
            
                3,560
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2011
             | 
            
                +0.80 / +3.56%
             |             
            
                23.30
             |           
            
                23.30
             |               
            
                23.30
             |                           
            
                23.30
             | 
            
                23.30
             |                     
            
                2.97
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2011
             | 
            
                -0.50 / -2.17%
             |             
            
                23.00
             |           
            
                23.10
             |               
            
                22.50
             |                           
            
                22.50
             | 
            
                22.50
             |                     
            
                2.87
             |                                 
            
                46,520
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2011
             | 
            
                -0.50 / -2.13%
             |             
            
                24.40
             |           
            
                24.40
             |               
            
                23.00
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                2.94
             |                                 
            
                2,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2011
             | 
            
                -0.60 / -2.49%
             |             
            
                24.10
             |           
            
                24.10
             |               
            
                23.50
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                3.00
             |                                 
            
                8,730
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2011
             | 
            
                +1.10 / +4.78%
             |             
            
                22.50
             |           
            
                24.10
             |               
            
                22.50
             |                           
            
                24.10
             | 
            
                24.10
             |                     
            
                3.08
             |                                 
            
                4,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2011
             | 
            
                -0.80 / -3.36%
             |             
            
                23.00
             |           
            
                24.40
             |               
            
                23.00
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                2.94
             |                                 
            
                10,290
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2011
             | 
            
                -0.60 / -2.46%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                23.80
             |                           
            
                23.80
             | 
            
                23.80
             |                     
            
                3.04
             |                                 
            
                36,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2011
             | 
            
                -0.30 / -1.21%
             |             
            
                24.70
             |           
            
                25.00
             |               
            
                24.40
             |                           
            
                24.40
             | 
            
                24.40
             |                     
            
                3.11
             |                                 
            
                99,320
             |            
            
                 
             |                                       
         
    
        
            | 
                2/25/2011
             | 
            
                -1.00 / -3.89%
             |             
            
                26.10
             |           
            
                26.10
             |               
            
                24.70
             |                           
            
                24.70
             | 
            
                24.70
             |                     
            
                3.15
             |                                 
            
                4,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2011
             | 
            
                +1.20 / +4.90%
             |             
            
                24.50
             |           
            
                25.70
             |               
            
                23.30
             |                           
            
                25.70
             | 
            
                25.70
             |                     
            
                3.28
             |                                 
            
                12,460
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2011
             | 
            
                +1.00 / +4.26%
             |             
            
                23.50
             |           
            
                24.50
             |               
            
                23.00
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                3.13
             |                                 
            
                12,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2011
             | 
            
                -0.90 / -3.69%
             |             
            
                23.20
             |           
            
                23.50
             |               
            
                23.20
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                3.00
             |                                 
            
                8,780
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2011
             | 
            
                -1.20 / -4.69%
             |             
            
                25.60
             |           
            
                25.60
             |               
            
                24.40
             |                           
            
                24.40
             | 
            
                24.40
             |                     
            
                3.11
             |                                 
            
                28,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/18/2011
             | 
            
                -0.10 / -0.39%
             |             
            
                25.70
             |           
            
                25.70
             |               
            
                25.60
             |                           
            
                25.60
             | 
            
                25.60
             |                     
            
                3.27
             |                                 
            
                37,900
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2011
             | 
            
                0.00 / 0.00%
             |             
            
                25.60
             |           
            
                25.70
             |               
            
                25.60
             |                           
            
                25.70
             | 
            
                25.70
             |                     
            
                3.28
             |                                 
            
                31,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/16/2011
             | 
            
                0.00 / 0.00%
             |             
            
                26.20
             |           
            
                26.20
             |               
            
                25.60
             |                           
            
                25.70
             | 
            
                25.70
             |                     
            
                3.28
             |                                 
            
                138,250
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2011
             | 
            
                0.00 / 0.00%
             |             
            
                25.60
             |           
            
                26.50
             |               
            
                25.60
             |                           
            
                25.70
             | 
            
                25.70
             |                     
            
                3.28
             |                                 
            
                61,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2011
             | 
            
                -0.50 / -1.91%
             |             
            
                25.60
             |           
            
                26.50
             |               
            
                25.30
             |                           
            
                25.70
             | 
            
                25.70
             |                     
            
                3.28
             |                                 
            
                12,850
             |            
            
                 
             |                                       
         
    
        
            | 
                2/11/2011
             | 
            
                +0.40 / +1.55%
             |             
            
                25.50
             |           
            
                26.20
             |               
            
                25.20
             |                           
            
                26.20
             | 
            
                26.20
             |                     
            
                3.34
             |                                 
            
                9,190
             |  
            
                 
             |                                                              
             
    
         
    
    
 |