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                    Closing price on 5/17/2011
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                    | Open | 27.00 |  
                    | High | 27.20 |  
                    | Low | 26.80 |  
                    | Volume | 113,220 |  
                    | Split-adjusted Price | 3.47 |  
                
             | 
 |  VHC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  
            | 3/31/2011 | -0.40 / -1.67% | 23.90 | 23.90 | 23.60 | 23.60 | 23.60 | 3.01 | 1,240 |   |  |