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            | 
                    Closing price on 7/27/2016
                 |  |  
    
        |           
                
                    | Open | 18.90 |  
                    | High | 19.20 |  
                    | Low | 18.80 |  
                    | Volume | 200,400 |  
                    | Split-adjusted Price | 17.40 |  
                
             | 
 |  IVS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 7/13/2016 | +0.20 / +1.06% | 18.90 | 19.20 | 18.90 | 19.10 | 19.01 | 17.40 | 566,600 |   |  
            | 7/12/2016 | +0.10 / +0.53% | 18.80 | 18.90 | 18.50 | 18.90 | 18.76 | 17.22 | 465,700 |   |  			
            | 7/11/2016 | -0.30 / -1.57% | 19.10 | 19.20 | 18.80 | 18.80 | 19.03 | 17.13 | 158,200 |   |  
            | 7/8/2016 | -0.10 / -0.52% | 19.20 | 19.20 | 18.90 | 19.10 | 19.10 | 17.40 | 92,600 |   |  			
            | 7/7/2016 | +0.10 / +0.52% | 19.00 | 19.20 | 19.00 | 19.20 | 19.10 | 17.49 | 124,900 |   |  
            | 7/6/2016 | 0.00 / 0.00% | 19.10 | 19.20 | 18.90 | 19.10 | 19.03 | 17.40 | 109,500 |   |  			
            | 7/5/2016 | +0.10 / +0.53% | 19.00 | 19.20 | 19.00 | 19.10 | 19.09 | 17.40 | 111,300 |   |  
            | 7/4/2016 | 0.00 / 0.00% | 18.50 | 19.10 | 18.50 | 19.00 | 18.84 | 17.31 | 111,200 |   |  			
            | 7/1/2016 | +0.10 / +0.53% | 18.90 | 19.10 | 18.60 | 19.00 | 18.90 | 17.31 | 178,500 |   |  
            | 6/30/2016 | +0.30 / +1.61% | 18.60 | 19.10 | 17.90 | 18.90 | 18.65 | 17.22 | 263,300 |   |  			
            | 6/29/2016 | +0.70 / +3.91% | 17.90 | 18.60 | 17.90 | 18.60 | 18.20 | 16.95 | 222,700 |   |  
            | 6/28/2016 | -0.20 / -1.10% | 18.10 | 18.10 | 17.60 | 17.90 | 17.99 | 16.31 | 284,000 |   |  			
            | 6/27/2016 | -0.10 / -0.55% | 18.20 | 18.20 | 18.00 | 18.10 | 18.11 | 16.49 | 731,700 |   |  
            | 6/24/2016 | -0.30 / -1.62% | 18.50 | 18.50 | 17.80 | 18.20 | 18.06 | 16.58 | 756,600 |   |  			
            | 6/23/2016 | +0.70 / +3.93% | 17.80 | 18.70 | 17.80 | 18.50 | 18.21 | 16.86 | 245,700 |   |  
            | 6/22/2016 | 0.00 / 0.00% | 17.80 | 17.80 | 17.70 | 17.80 | 17.72 | 16.22 | 217,300 |   |  			
            | 6/21/2016 | -0.10 / -0.56% | 17.90 | 17.90 | 17.70 | 17.80 | 17.79 | 16.22 | 200,800 |   |  
            | 6/20/2016 | 0.00 / 0.00% | 17.90 | 18.00 | 17.50 | 17.90 | 17.75 | 16.31 | 291,600 |   |  			
            | 6/17/2016 | 0.00 / 0.00% | 17.90 | 17.90 | 17.70 | 17.90 | 17.82 | 16.31 | 276,400 |   |  
            | 6/16/2016 | 0.00 / 0.00% | 17.90 | 17.90 | 17.80 | 17.90 | 17.84 | 16.31 | 295,900 |   |  |