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            | 
                    Closing price on 7/2/2015
                 |  |  
    
        |           
                
                    | Open | 16.60 |  
                    | High | 17.00 |  
                    | Low | 16.40 |  
                    | Volume | 386,500 |  
                    | Split-adjusted Price | 14.43 |  
                
             | 
 |  IVS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/2/2015 | +0.20 / +1.20% | 16.60 | 17.00 | 16.40 | 16.80 | 16.68 | 14.43 | 386,500 |   |  
            | 7/1/2015 | 0.00 / 0.00% | 16.60 | 17.10 | 16.50 | 16.60 | 16.78 | 14.25 | 462,500 |   |  			
            | 6/30/2015 | -0.30 / -1.78% | 16.90 | 16.90 | 16.40 | 16.60 | 16.71 | 14.25 | 303,600 |   |  
            | 6/29/2015 | +0.10 / +0.60% | 16.80 | 17.00 | 16.80 | 16.90 | 16.91 | 14.51 | 303,100 |   |  			
            | 6/26/2015 | 0.00 / 0.00% | 16.80 | 17.00 | 16.70 | 16.80 | 16.80 | 14.43 | 273,800 |   |  
            | 6/25/2015 | 0.00 / 0.00% | 16.80 | 17.00 | 16.60 | 16.80 | 16.76 | 14.43 | 701,800 |   |  			
            | 6/24/2015 | -0.10 / -0.59% | 16.90 | 17.00 | 16.70 | 16.80 | 16.83 | 14.43 | 787,900 |   |  
            | 6/23/2015 | -0.10 / -0.59% | 17.00 | 17.10 | 16.60 | 16.90 | 16.89 | 14.51 | 407,600 |   |  			
            | 6/22/2015 | +0.60 / +3.66% | 16.40 | 17.10 | 16.40 | 17.00 | 16.81 | 14.60 | 570,700 |   |  
            | 6/19/2015 | -0.40 / -2.38% | 16.80 | 17.00 | 16.30 | 16.40 | 16.74 | 14.08 | 520,400 |   |  			
            | 6/18/2015 | +0.80 / +5.00% | 15.50 | 17.00 | 15.50 | 16.80 | 16.41 | 14.43 | 390,500 |   |  
            | 6/17/2015 | -0.60 / -3.61% | 16.60 | 16.60 | 15.00 | 16.00 | 15.77 | 13.74 | 902,500 |   |  			
            | 6/16/2015 | -0.70 / -4.05% | 17.30 | 17.40 | 16.60 | 16.60 | 17.14 | 14.25 | 326,200 |   |  
            | 6/15/2015 | +0.30 / +1.76% | 17.00 | 17.50 | 17.00 | 17.30 | 17.24 | 14.86 | 332,000 |   |  			
            | 6/12/2015 | +0.10 / +0.59% | 16.60 | 17.30 | 16.60 | 17.00 | 17.03 | 14.60 | 353,900 |   |  
            | 6/11/2015 | +0.50 / +3.05% | 16.40 | 16.90 | 16.40 | 16.90 | 16.63 | 14.51 | 283,500 |   |  			
            | 6/10/2015 | -0.20 / -1.20% | 16.60 | 16.70 | 16.40 | 16.40 | 16.54 | 14.08 | 254,400 |   |  
            | 6/9/2015 | -0.60 / -3.49% | 17.10 | 17.30 | 16.50 | 16.60 | 16.89 | 14.25 | 306,800 |   |  			
            | 6/8/2015 | 0.00 / 0.00% | 17.20 | 17.50 | 17.20 | 17.20 | 17.24 | 14.77 | 407,000 |   |  
            | 6/5/2015 | +0.90 / +5.52% | 16.30 | 17.40 | 16.20 | 17.20 | 16.81 | 14.77 | 491,500 |   |  			
            | 6/4/2015 | -0.30 / -1.81% | 16.60 | 16.90 | 16.30 | 16.30 | 16.68 | 14.00 | 343,800 |   |  
            | 6/3/2015 | +0.10 / +0.61% | 16.50 | 16.80 | 16.50 | 16.60 | 16.63 | 14.25 | 269,200 |   |  			
            | 6/2/2015 | -0.10 / -0.60% | 16.50 | 17.20 | 15.90 | 16.50 | 16.60 | 14.17 | 375,200 |   |  
            | 6/1/2015 | +0.60 / +3.75% | 16.00 | 16.90 | 15.70 | 16.60 | 16.21 | 14.25 | 487,000 |   |  			
            | 5/29/2015 | +0.50 / +3.23% | 15.20 | 16.50 | 14.80 | 16.00 | 15.61 | 13.74 | 330,000 |   |  
            | 5/28/2015 | +1.00 / +6.90% | 14.40 | 15.90 | 14.20 | 15.50 | 15.04 | 13.31 | 550,900 |   |  			
            | 5/27/2015 | -0.20 / -1.36% | 14.70 | 14.70 | 14.30 | 14.50 | 14.54 | 12.45 | 419,700 |   |  
            | 5/26/2015 | -0.20 / -1.34% | 14.90 | 15.00 | 14.70 | 14.70 | 14.92 | 12.62 | 242,400 |   |  			
            | 5/25/2015 | -0.10 / -0.67% | 15.00 | 15.10 | 14.80 | 14.90 | 14.93 | 12.79 | 257,500 |   |  
            | 5/22/2015 | 0.00 / 0.00% | 15.00 | 15.00 | 14.50 | 15.00 | 14.66 | 12.88 | 284,900 |   |  |