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            | 
                    Closing price on 1/31/2012
                 |  |  
    
        |           
                
                    | Open | 4.20 |  
                    | High | 4.50 |  
                    | Low | 4.20 |  
                    | Volume | 15,000 |  
                    | Split-adjusted Price | 3.86 |  
                
             | 
 |  IVS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/31/2012 | -0.10 / -2.17% | 4.20 | 4.50 | 4.20 | 4.50 | 4.37 | 3.86 | 15,000 |   |  
            | 1/30/2012 | +0.20 / +4.55% | 4.30 | 4.60 | 4.30 | 4.60 | 4.52 | 3.95 | 20,700 |   |  			
            | 1/20/2012 | +0.20 / +4.76% | 4.20 | 4.40 | 4.00 | 4.40 | 4.27 | 3.78 | 59,100 |   |  
            | 1/19/2012 | 0.00 / 0.00% | 4.10 | 4.20 | 4.10 | 4.20 | 4.18 | 3.61 | 93,000 |   |  			
            | 1/18/2012 | 0.00 / 0.00% | 4.20 | 4.20 | 4.00 | 4.20 | 4.13 | 3.61 | 5,500 |   |  
            | 1/17/2012 | +0.20 / +5.00% | 4.10 | 4.20 | 4.10 | 4.20 | 4.15 | 3.61 | 2,000 |   |  			
            | 1/16/2012 | +0.10 / +2.56% | 4.00 | 4.10 | 4.00 | 4.00 | 4.04 | 3.43 | 7,100 |   |  
            | 1/13/2012 | -0.20 / -4.88% | 4.00 | 4.10 | 3.80 | 3.90 | 3.94 | 3.35 | 10,900 |   |  			
            | 1/12/2012 | +0.10 / +2.50% | 3.80 | 4.10 | 3.80 | 4.10 | 3.93 | 3.52 | 20,200 |   |  
            | 1/11/2012 | 0.00 / 0.00% | 4.20 | 4.20 | 3.80 | 4.00 | 4.00 | 3.43 | 3,900 |   |  			
            | 1/10/2012 | -0.30 / -6.98% | 4.00 | 4.20 | 4.00 | 4.00 | 4.01 | 3.43 | 314,900 |   |  
            | 1/9/2012 | +0.10 / +2.38% | 4.30 | 4.30 | 4.30 | 4.30 | 4.30 | 3.69 | 100 |   |  			
            | 1/6/2012 | 0.00 / 0.00% | 4.20 | 4.20 | 4.20 | 4.20 | 4.20 | 3.61 | 0 |   |  
            | 1/5/2012 | 0.00 / 0.00% | 4.20 | 4.20 | 4.20 | 4.20 | 4.20 | 3.61 | 0 |   |  			
            | 1/4/2012 | -0.30 / -6.67% | 4.20 | 4.20 | 4.20 | 4.20 | 4.20 | 3.61 | 12,000 |   |  
            | 1/3/2012 | -0.40 / -8.16% | 4.50 | 4.50 | 4.50 | 4.50 | 4.50 | 3.86 | 5,700 |   |  			
            | 12/30/2011 | +0.60 / +13.95% | 4.30 | 4.90 | 4.30 | 4.90 | 4.76 | 4.21 | 56,200 |   |  
            | 12/29/2011 | +0.10 / +2.38% | 4.60 | 4.90 | 4.30 | 4.30 | 4.58 | 3.69 | 14,700 |   |  			
            | 12/28/2011 | -0.30 / -6.67% | 4.50 | 4.80 | 4.20 | 4.20 | 4.57 | 3.61 | 66,500 |   |  
            | 12/27/2011 | +0.10 / +2.27% | 4.50 | 4.50 | 4.50 | 4.50 | 4.50 | 3.86 | 200,100 |   |  			
            | 12/26/2011 | -0.30 / -6.38% | 4.40 | 4.80 | 4.40 | 4.40 | 4.75 | 3.78 | 62,900 |   |  
            | 12/23/2011 | +0.10 / +2.17% | 4.70 | 4.70 | 4.70 | 4.70 | 4.70 | 4.04 | 100 |   |  			
            | 12/22/2011 | -0.40 / -8.00% | 5.00 | 5.00 | 4.60 | 4.60 | 4.99 | 3.95 | 15,300 |   |  
            | 12/21/2011 | +0.20 / +4.17% | 4.90 | 5.00 | 4.90 | 5.00 | 4.90 | 4.29 | 25,100 |   |  			
            | 12/20/2011 | +0.60 / +14.29% | 4.30 | 4.80 | 4.30 | 4.80 | 4.72 | 4.12 | 201,600 |   |  
            | 12/19/2011 | -0.10 / -2.33% | 4.60 | 4.60 | 4.20 | 4.20 | 4.56 | 3.61 | 1,100 |   |  			
            | 12/16/2011 | 0.00 / 0.00% | 4.50 | 4.60 | 4.20 | 4.30 | 4.52 | 3.69 | 59,000 |   |  
            | 12/15/2011 | +0.30 / +7.50% | 4.30 | 4.30 | 4.30 | 4.30 | 4.30 | 3.69 | 3,100 |   |  			
            | 12/14/2011 | -0.20 / -4.76% | 4.30 | 4.30 | 4.00 | 4.00 | 4.25 | 3.43 | 52,900 |   |  
            | 12/13/2011 | -0.20 / -4.55% | 4.20 | 4.30 | 4.20 | 4.20 | 4.26 | 3.61 | 71,800 |   |  |