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            | 
                    Closing price on 1/22/2015
                 |  |  
    
        |           
                
                    | Open | 12.60 |  
                    | High | 12.80 |  
                    | Low | 12.60 |  
                    | Volume | 562,700 |  
                    | Split-adjusted Price | 10.99 |  
                
             | 
 |  IVS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/22/2015 | +0.20 / +1.59% | 12.60 | 12.80 | 12.60 | 12.80 | 12.64 | 10.99 | 562,700 |   |  
            | 1/21/2015 | +0.10 / +0.80% | 12.50 | 12.70 | 12.40 | 12.60 | 12.54 | 10.82 | 263,100 |   |  			
            | 1/20/2015 | 0.00 / 0.00% | 12.50 | 12.60 | 12.50 | 12.50 | 12.50 | 10.73 | 150,600 |   |  
            | 1/19/2015 | -0.20 / -1.57% | 12.70 | 12.80 | 12.50 | 12.50 | 12.65 | 10.73 | 174,800 |   |  			
            | 1/16/2015 | 0.00 / 0.00% | 12.70 | 12.90 | 12.60 | 12.70 | 12.74 | 10.91 | 337,300 |   |  
            | 1/15/2015 | 0.00 / 0.00% | 12.70 | 12.80 | 12.60 | 12.70 | 12.72 | 10.91 | 515,600 |   |  			
            | 1/14/2015 | +0.10 / +0.79% | 12.60 | 13.00 | 12.50 | 12.70 | 12.60 | 10.91 | 514,000 |   |  
            | 1/13/2015 | +0.10 / +0.80% | 12.40 | 12.60 | 12.40 | 12.60 | 12.50 | 10.82 | 142,700 |   |  			
            | 1/12/2015 | -0.30 / -2.34% | 12.80 | 12.90 | 12.40 | 12.50 | 12.71 | 10.73 | 152,100 |   |  
            | 1/9/2015 | 0.00 / 0.00% | 12.80 | 12.90 | 12.60 | 12.80 | 12.80 | 10.99 | 197,200 |   |  			
            | 1/8/2015 | -0.20 / -1.54% | 13.00 | 13.10 | 12.70 | 12.80 | 12.87 | 10.99 | 210,000 |   |  
            | 1/7/2015 | 0.00 / 0.00% | 13.00 | 13.20 | 12.90 | 13.00 | 13.04 | 11.16 | 459,300 |   |  			
            | 1/6/2015 | +0.30 / +2.36% | 13.10 | 13.40 | 12.70 | 13.00 | 13.00 | 11.16 | 462,900 |   |  
            | 1/5/2015 | +0.10 / +0.79% | 12.60 | 12.80 | 12.50 | 12.70 | 12.66 | 10.91 | 198,100 |   |  			
            | 12/31/2014 | +0.90 / +7.69% | 11.80 | 12.70 | 11.80 | 12.60 | 12.23 | 10.82 | 509,700 |   |  
            | 12/30/2014 | +0.20 / +1.74% | 11.50 | 11.70 | 11.40 | 11.70 | 11.53 | 10.05 | 147,700 |   |  			
            | 12/29/2014 | -0.10 / -0.86% | 11.60 | 11.70 | 11.50 | 11.50 | 11.64 | 9.88 | 156,300 |   |  
            | 12/26/2014 | 0.00 / 0.00% | 11.60 | 11.60 | 11.40 | 11.60 | 11.56 | 9.96 | 136,300 |   |  			
            | 12/25/2014 | -0.20 / -1.69% | 11.80 | 11.80 | 11.60 | 11.60 | 11.66 | 9.96 | 169,500 |   |  
            | 12/24/2014 | -0.10 / -0.84% | 11.80 | 11.90 | 11.80 | 11.80 | 11.84 | 10.13 | 102,900 |   |  			
            | 12/23/2014 | -0.10 / -0.83% | 12.00 | 12.00 | 11.80 | 11.90 | 11.90 | 10.22 | 389,600 |   |  
            | 12/22/2014 | +0.30 / +2.56% | 11.80 | 12.00 | 11.70 | 12.00 | 11.79 | 10.30 | 488,200 |   |  			
            | 12/19/2014 | -0.10 / -0.85% | 11.80 | 12.00 | 11.70 | 11.70 | 11.85 | 10.05 | 269,900 |   |  
            | 12/18/2014 | +0.60 / +5.36% | 11.30 | 11.80 | 11.30 | 11.80 | 11.53 | 10.13 | 204,900 |   |  			
            | 12/17/2014 | -0.10 / -0.88% | 11.40 | 11.40 | 10.90 | 11.20 | 11.23 | 9.62 | 235,600 |   |  
            | 12/16/2014 | -0.10 / -0.88% | 11.30 | 11.40 | 11.20 | 11.30 | 11.33 | 9.70 | 153,100 |   |  			
            | 12/15/2014 | +0.20 / +1.79% | 11.20 | 11.40 | 11.20 | 11.40 | 11.27 | 9.79 | 143,200 |   |  
            | 12/12/2014 | +0.10 / +0.90% | 11.10 | 11.30 | 11.10 | 11.20 | 11.28 | 9.62 | 171,000 |   |  			
            | 12/11/2014 | -0.30 / -2.63% | 11.30 | 11.40 | 11.10 | 11.10 | 11.26 | 9.53 | 145,300 |   |  
            | 12/10/2014 | +0.30 / +2.70% | 11.30 | 11.40 | 11.10 | 11.40 | 11.28 | 9.79 | 78,000 |   |  |