| 
    
        
            | 
                    Closing price on 8/2/2011
                 |  |  
    
        |           
                
                    | Open | 6.60 |  
                    | High | 6.60 |  
                    | Low | 6.60 |  
                    | Volume | 10,200 |  
                    | Split-adjusted Price | 5.67 |  
                
             | 
 |  IVS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/2/2011 | -0.40 / -5.71% | 6.60 | 6.60 | 6.60 | 6.60 | 6.60 | 5.67 | 10,200 |   |  
            | 8/1/2011 | +7.00 / +0.00% | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 6.01 | 5,300 |   |  |