| 
    
        
            | 
                    Closing price on 8/24/2016
                 |  |  
    
        |           
                
                    | Open | 16.80 |  
                    | High | 17.00 |  
                    | Low | 16.40 |  
                    | Volume | 205,100 |  
                    | Split-adjusted Price | 15.49 |  
                
             | 
 |  IVS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/24/2016 | 0.00 / 0.00% | 16.80 | 17.00 | 16.40 | 17.00 | 16.81 | 15.49 | 205,100 |   |  
            | 8/23/2016 | +0.30 / +1.80% | 16.70 | 17.00 | 16.30 | 17.00 | 16.71 | 15.49 | 246,200 |   |  			
            | 8/22/2016 | -0.30 / -1.76% | 17.00 | 17.10 | 16.30 | 16.70 | 16.88 | 15.22 | 191,400 |   |  
            | 8/19/2016 | -0.10 / -0.58% | 17.10 | 17.10 | 16.90 | 17.00 | 17.10 | 15.49 | 207,900 |   |  			
            | 8/18/2016 | -0.60 / -3.39% | 17.70 | 17.70 | 17.00 | 17.10 | 17.47 | 15.58 | 187,700 |   |  
            | 8/17/2016 | -0.30 / -1.67% | 18.00 | 18.00 | 17.70 | 17.70 | 17.89 | 16.13 | 171,400 |   |  			
            | 8/16/2016 | -0.10 / -0.55% | 18.10 | 18.20 | 17.90 | 18.00 | 18.06 | 16.40 | 223,000 |   |  
            | 8/15/2016 | -0.30 / -1.63% | 18.40 | 18.40 | 18.10 | 18.10 | 18.25 | 16.49 | 171,500 |   |  			
            | 8/12/2016 | -0.30 / -1.60% | 18.70 | 18.90 | 18.40 | 18.40 | 18.69 | 16.76 | 170,300 |   |  
            | 8/11/2016 | +0.10 / +0.54% | 18.60 | 18.70 | 18.60 | 18.70 | 18.65 | 17.04 | 160,100 |   |  			
            | 8/10/2016 | +0.10 / +0.54% | 18.50 | 18.60 | 18.40 | 18.60 | 18.54 | 16.95 | 179,500 |   |  
            | 8/9/2016 | 0.00 / 0.00% | 18.50 | 18.70 | 18.50 | 18.50 | 18.63 | 16.86 | 166,800 |   |  			
            | 8/8/2016 | 0.00 / 0.00% | 18.50 | 18.60 | 18.40 | 18.50 | 18.51 | 16.86 | 196,100 |   |  
            | 8/5/2016 | -0.10 / -0.54% | 18.60 | 18.70 | 18.40 | 18.50 | 18.54 | 16.86 | 186,500 |   |  			
            | 8/4/2016 | -0.10 / -0.53% | 18.70 | 18.90 | 18.60 | 18.60 | 18.73 | 16.95 | 166,300 |   |  
            | 8/3/2016 | -0.10 / -0.53% | 18.80 | 18.90 | 18.30 | 18.70 | 18.64 | 17.04 | 351,500 |   |  			
            | 8/2/2016 | -0.20 / -1.05% | 19.00 | 19.00 | 18.70 | 18.80 | 18.85 | 17.13 | 177,000 |   |  
            | 8/1/2016 | -0.10 / -0.52% | 19.10 | 19.10 | 18.90 | 19.00 | 18.99 | 17.31 | 173,300 |   |  			
            | 7/29/2016 | -0.10 / -0.52% | 19.20 | 19.30 | 19.00 | 19.10 | 19.15 | 17.40 | 195,100 |   |  
            | 7/28/2016 | +0.10 / +0.52% | 19.10 | 19.20 | 19.10 | 19.20 | 19.14 | 17.49 | 198,200 |   |  			
            | 7/27/2016 | +0.20 / +1.06% | 18.90 | 19.20 | 18.80 | 19.10 | 19.03 | 17.40 | 200,400 |   |  
            | 7/26/2016 | +0.10 / +0.53% | 18.80 | 18.90 | 18.70 | 18.90 | 18.76 | 17.22 | 185,400 |   |  			
            | 7/25/2016 | 0.00 / 0.00% | 18.80 | 18.90 | 18.70 | 18.80 | 18.86 | 17.13 | 166,900 |   |  
            | 7/22/2016 | -0.10 / -0.53% | 18.80 | 18.90 | 18.60 | 18.80 | 18.90 | 17.13 | 173,700 |   |  			
            | 7/21/2016 | -0.10 / -0.53% | 19.00 | 19.10 | 18.80 | 18.90 | 18.93 | 17.22 | 455,100 |   |  
            | 7/20/2016 | -0.10 / -0.52% | 19.10 | 19.10 | 18.90 | 19.00 | 18.98 | 17.31 | 203,600 |   |  			
            | 7/19/2016 | 0.00 / 0.00% | 19.10 | 19.10 | 19.00 | 19.10 | 19.05 | 17.40 | 208,600 |   |  
            | 7/18/2016 | +0.10 / +0.53% | 19.00 | 19.10 | 18.90 | 19.10 | 18.99 | 17.40 | 246,800 |   |  			
            | 7/15/2016 | -0.10 / -0.52% | 19.10 | 19.10 | 18.80 | 19.00 | 18.94 | 17.31 | 229,900 |   |  
            | 7/14/2016 | 0.00 / 0.00% | 19.10 | 19.20 | 18.90 | 19.10 | 19.05 | 17.40 | 202,100 |   |  |