| 
    
        
            | 
                    Closing price on 9/20/2012
                 |  |  
    
        |           
                
                    | Open | 2.70 |  
                    | High | 2.80 |  
                    | Low | 2.70 |  
                    | Volume | 11,200 |  
                    | Split-adjusted Price | 2.80 |  
                
             | 
 |  V15 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/20/2012 | 0.00 / 0.00% | 2.70 | 2.80 | 2.70 | 2.80 | 2.80 | 2.80 | 11,200 |   |  
            | 9/19/2012 | 0.00 / 0.00% | 2.80 | 2.80 | 2.70 | 2.80 | 2.80 | 2.80 | 15,600 |   |  			
            | 9/18/2012 | -0.10 / -3.45% | 2.90 | 2.90 | 2.70 | 2.80 | 2.80 | 2.80 | 18,100 |   |  
            | 9/17/2012 | +0.10 / +3.57% | 2.90 | 2.90 | 2.80 | 2.90 | 2.90 | 2.90 | 20,200 |   |  			
            | 9/14/2012 | +0.10 / +3.70% | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 18,600 |   |  
            | 9/13/2012 | -0.10 / -3.57% | 2.70 | 2.80 | 2.60 | 2.70 | 2.70 | 2.70 | 17,200 |   |  			
            | 9/12/2012 | +0.10 / +3.70% | 2.60 | 2.80 | 2.60 | 2.80 | 2.80 | 2.80 | 28,200 |   |  
            | 9/11/2012 | -0.10 / -3.57% | 2.70 | 2.70 | 2.70 | 2.70 | 2.70 | 2.70 | 17,700 |   |  			
            | 9/10/2012 | -0.20 / -6.67% | 2.80 | 2.90 | 2.80 | 2.80 | 2.80 | 2.80 | 6,700 |   |  
            | 9/7/2012 | -0.20 / -6.25% | 3.10 | 3.20 | 3.00 | 3.00 | 3.20 | 3.00 | 18,800 |   |  			
            | 9/6/2012 | -0.20 / -5.88% | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 1,200 |   |  
            | 9/5/2012 | +0.10 / +3.03% | 3.20 | 3.40 | 3.10 | 3.40 | 3.40 | 3.40 | 12,100 |   |  			
            | 9/4/2012 | 0.00 / 0.00% | 3.50 | 3.50 | 3.10 | 3.30 | 3.30 | 3.30 | 2,500 |   |  
            | 8/31/2012 | -0.20 / -5.71% | 3.50 | 3.50 | 3.30 | 3.30 | 3.50 | 3.30 | 7,200 |   |  			
            | 8/30/2012 | -0.10 / -2.78% | 3.60 | 3.60 | 3.50 | 3.50 | 3.50 | 3.50 | 600 |   |  
            | 8/29/2012 | +0.20 / +5.88% | 3.50 | 3.60 | 3.30 | 3.60 | 3.60 | 3.60 | 15,200 |   |  			
            | 8/28/2012 | 0.00 / 0.00% | 3.20 | 3.40 | 3.20 | 3.40 | 3.40 | 3.40 | 26,500 |   |  
            | 8/27/2012 | -0.10 / -2.86% | 3.40 | 3.40 | 3.40 | 3.40 | 3.40 | 3.40 | 48,000 |   |  			
            | 8/24/2012 | -0.20 / -5.41% | 3.50 | 3.70 | 3.50 | 3.50 | 3.70 | 3.50 | 80,100 |   |  
            | 8/23/2012 | -0.20 / -5.13% | 3.70 | 3.70 | 3.70 | 3.70 | 3.70 | 3.70 | 2,500 |   |  			
            | 8/22/2012 | -0.20 / -4.88% | 3.90 | 3.90 | 3.90 | 3.90 | 3.90 | 3.90 | 11,600 |   |  
            | 8/21/2012 | -0.20 / -4.65% | 4.20 | 4.20 | 4.10 | 4.10 | 4.10 | 4.10 | 8,400 |   |  			
            | 8/20/2012 | -0.20 / -4.44% | 4.40 | 4.40 | 4.30 | 4.30 | 4.30 | 4.30 | 9,200 |   |  
            | 8/17/2012 | -0.10 / -2.17% | 4.40 | 4.50 | 4.30 | 4.50 | 4.43 | 4.50 | 10,000 |   |  			
            | 8/16/2012 | 0.00 / 0.00% | 4.60 | 4.60 | 4.60 | 4.60 | 4.60 | 4.60 | 2,100 |   |  
            | 8/15/2012 | 0.00 / 0.00% | 4.50 | 4.60 | 4.50 | 4.60 | 4.60 | 4.60 | 500 |   |  			
            | 8/14/2012 | 0.00 / 0.00% | 4.60 | 4.60 | 4.40 | 4.60 | 4.60 | 4.60 | 13,700 |   |  
            | 8/13/2012 | 0.00 / 0.00% | 4.40 | 4.60 | 4.40 | 4.60 | 4.60 | 4.60 | 3,500 |   |  			
            | 8/10/2012 | -0.20 / -4.17% | 4.60 | 4.60 | 4.50 | 4.60 | 4.58 | 4.60 | 7,900 |   |  
            | 8/9/2012 | +0.10 / +2.13% | 4.80 | 4.80 | 4.50 | 4.80 | 4.80 | 4.80 | 1,500 |   |  |