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                    Closing price on 4/7/2011
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                    | Open | 23.00 |  
                    | High | 23.00 |  
                    | Low | 23.00 |  
                    | Volume | 10 |  
                    | Split-adjusted Price | 2.94 |  
                
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 |  VHC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  
            | 3/31/2011 | -0.40 / -1.67% | 23.90 | 23.90 | 23.60 | 23.60 | 23.60 | 3.01 | 1,240 |   |  			
            | 3/30/2011 | +0.50 / +2.13% | 23.50 | 24.00 | 23.50 | 24.00 | 24.00 | 3.06 | 1,100 |   |  
            | 3/29/2011 | -0.50 / -2.08% | 23.50 | 23.50 | 23.50 | 23.50 | 23.50 | 3.00 | 1,080 |   |  			
            | 3/28/2011 | 0.00 / 0.00% | 23.80 | 24.00 | 23.60 | 24.00 | 24.00 | 3.06 | 10,760 |   |  
            | 3/25/2011 | 0.00 / 0.00% | 24.00 | 24.00 | 23.80 | 24.00 | 24.00 | 3.06 | 9,250 |   |  			
            | 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 |   |  |