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                    Closing price on 6/16/2011
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                    | Open | 24.60 |  
                    | High | 24.60 |  
                    | Low | 24.60 |  
                    | Volume | 3,400 |  
                    | Split-adjusted Price | 24.60 |  
                
             | 
 |  VTS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/16/2011 | +1.40 / +6.03% | 24.60 | 24.60 | 24.60 | 24.60 | 24.60 | 24.60 | 3,400 |   |  
            | 6/15/2011 | -0.20 / -0.85% | 23.10 | 24.80 | 23.10 | 23.20 | 23.20 | 23.20 | 2,600 |   |  			
            | 6/14/2011 | +0.40 / +1.74% | 23.30 | 25.00 | 23.30 | 23.40 | 23.40 | 23.40 | 3,200 |   |  
            | 6/13/2011 | -1.00 / -4.17% | 22.30 | 25.50 | 22.30 | 23.00 | 23.00 | 23.00 | 1,800 |   |  			
            | 6/10/2011 | +1.50 / +6.67% | 23.80 | 24.00 | 23.00 | 24.00 | 24.00 | 24.00 | 3,400 |   |  
            | 6/9/2011 | 0.00 / 0.00% | 21.50 | 22.50 | 21.50 | 22.50 | 22.50 | 22.50 | 2,300 |   |  			
            | 6/8/2011 | -0.60 / -2.60% | 22.50 | 22.50 | 22.50 | 22.50 | 22.50 | 22.50 | 200 |   |  
            | 6/7/2011 | +1.30 / +5.96% | 20.20 | 23.10 | 20.20 | 23.10 | 23.10 | 23.10 | 5,600 |   |  			
            | 6/6/2011 | +0.80 / +3.81% | 19.00 | 21.80 | 19.00 | 21.80 | 21.80 | 21.80 | 3,200 |   |  
            | 6/3/2011 | -9.60 / -31.37% | 18.90 | 21.00 | 18.90 | 21.00 | 21.00 | 21.00 | 6,900 |   |  			
            | 6/2/2011 | +4.40 / +16.79% | 30.20 | 30.60 | 30.20 | 30.60 | 30.60 | 30.60 | 2,700 |   |  
            | 6/1/2011 | -2.30 / -8.07% | 26.40 | 29.90 | 26.20 | 26.20 | 26.20 | 26.20 | 6,500 |   |  			
            | 5/31/2011 | +1.40 / +5.17% | 25.50 | 28.50 | 25.50 | 28.50 | 28.50 | 28.50 | 1,500 |   |  
            | 5/30/2011 | -1.50 / -5.24% | 26.90 | 28.10 | 26.90 | 27.10 | 27.10 | 27.10 | 1,600 |   |  			
            | 5/27/2011 | -1.40 / -4.67% | 25.20 | 28.60 | 25.20 | 28.60 | 28.60 | 28.60 | 1,300 |   |  
            | 5/26/2011 | +2.10 / +7.53% | 26.80 | 30.00 | 26.70 | 30.00 | 30.00 | 30.00 | 4,900 |   |  			
            | 5/25/2011 | -3.10 / -10.00% | 27.90 | 31.90 | 27.90 | 27.90 | 27.90 | 27.90 | 7,200 |   |  
            | 5/24/2011 | -1.00 / -3.13% | 29.40 | 31.00 | 29.40 | 31.00 | 31.00 | 31.00 | 1,700 |   |  			
            | 5/23/2011 | -1.20 / -3.61% | 31.20 | 32.00 | 31.10 | 32.00 | 32.00 | 32.00 | 900 |   |  
            | 5/20/2011 | -0.20 / -0.60% | 31.10 | 33.20 | 31.10 | 33.20 | 33.20 | 33.20 | 4,600 |   |  			
            | 5/19/2011 | +0.70 / +2.14% | 31.10 | 33.40 | 31.10 | 33.40 | 33.40 | 33.40 | 2,100 |   |  
            | 5/18/2011 | -0.30 / -0.91% | 30.40 | 34.40 | 30.40 | 32.70 | 32.70 | 32.70 | 700 |   |  			
            | 5/17/2011 | -1.20 / -3.51% | 32.60 | 33.00 | 32.50 | 33.00 | 33.00 | 33.00 | 1,100 |   |  
            | 5/16/2011 | 0.00 / 0.00% | 32.00 | 34.20 | 32.00 | 34.20 | 34.20 | 34.20 | 1,600 |   |  			
            | 5/13/2011 | 0.00 / 0.00% | 34.30 | 34.30 | 34.20 | 34.20 | 34.20 | 34.20 | 500 |   |  
            | 5/12/2011 | -1.70 / -4.74% | 34.10 | 34.20 | 34.10 | 34.20 | 34.20 | 34.20 | 1,200 |   |  			
            | 5/11/2011 | +1.90 / +5.59% | 35.90 | 35.90 | 35.90 | 35.90 | 35.90 | 35.90 | 100 |   |  
            | 5/10/2011 | +0.70 / +2.10% | 31.00 | 34.00 | 31.00 | 34.00 | 34.00 | 34.00 | 1,500 |   |  			
            | 5/9/2011 | -1.70 / -4.86% | 31.10 | 33.30 | 31.10 | 33.30 | 33.30 | 33.30 | 500 |   |  
            | 5/6/2011 | +1.90 / +5.74% | 32.20 | 35.00 | 32.20 | 35.00 | 35.00 | 35.00 | 500 |   |  |