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                    Closing price on 11/25/2011
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                    | Open | 4.00 |  
                    | High | 4.10 |  
                    | Low | 4.00 |  
                    | Volume | 30,800 |  
                    | Split-adjusted Price | 3.52 |  
                
             | 
 |  IVS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/25/2011 | -0.10 / -2.38% | 4.00 | 4.10 | 4.00 | 4.10 | 4.08 | 3.52 | 30,800 |   |  
            | 11/24/2011 | -0.10 / -2.33% | 4.30 | 4.30 | 4.20 | 4.20 | 4.30 | 3.61 | 24,300 |   |  			
            | 11/23/2011 | +0.20 / +4.88% | 4.20 | 4.30 | 3.90 | 4.30 | 4.17 | 3.69 | 45,700 |   |  
            | 11/22/2011 | 0.00 / 0.00% | 4.10 | 4.10 | 4.10 | 4.10 | 4.10 | 3.52 | 700 |   |  			
            | 11/21/2011 | -0.30 / -6.82% | 4.40 | 4.40 | 4.10 | 4.10 | 4.37 | 3.52 | 31,300 |   |  
            | 11/18/2011 | -0.20 / -4.35% | 4.40 | 4.40 | 4.40 | 4.40 | 4.40 | 3.78 | 200 |   |  			
            | 11/17/2011 | +0.10 / +2.22% | 4.60 | 4.70 | 4.60 | 4.60 | 4.70 | 3.95 | 50,400 |   |  
            | 11/16/2011 | +0.10 / +2.27% | 4.60 | 4.70 | 4.50 | 4.50 | 4.64 | 3.86 | 64,100 |   |  			
            | 11/15/2011 | +0.10 / +2.33% | 4.40 | 4.60 | 4.30 | 4.40 | 4.57 | 3.78 | 49,300 |   |  
            | 11/14/2011 | -0.20 / -4.44% | 4.60 | 4.60 | 4.30 | 4.30 | 4.30 | 3.69 | 15,200 |   |  			
            | 11/11/2011 | 0.00 / 0.00% | 4.70 | 4.70 | 4.50 | 4.50 | 4.55 | 3.86 | 7,800 |   |  
            | 11/10/2011 | -0.30 / -6.25% | 4.90 | 4.90 | 4.50 | 4.50 | 4.83 | 3.86 | 67,100 |   |  			
            | 11/9/2011 | -0.10 / -2.04% | 5.00 | 5.00 | 4.60 | 4.80 | 4.72 | 4.12 | 3,300 |   |  
            | 11/8/2011 | -0.10 / -2.00% | 4.70 | 4.90 | 4.70 | 4.90 | 4.86 | 4.21 | 56,600 |   |  			
            | 11/7/2011 | 0.00 / 0.00% | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 4.29 | 500 |   |  
            | 11/4/2011 | -0.30 / -5.66% | 5.30 | 5.30 | 5.00 | 5.00 | 5.28 | 4.29 | 46,400 |   |  			
            | 11/3/2011 | 0.00 / 0.00% | 5.00 | 5.30 | 5.00 | 5.30 | 5.28 | 4.55 | 47,900 |   |  
            | 11/2/2011 | +0.10 / +1.92% | 5.30 | 5.30 | 5.30 | 5.30 | 5.30 | 4.55 | 100 |   |  			
            | 11/1/2011 | -0.10 / -1.89% | 5.60 | 5.60 | 5.20 | 5.20 | 5.55 | 4.47 | 61,700 |   |  
            | 10/31/2011 | 0.00 / 0.00% | 5.50 | 5.50 | 5.20 | 5.30 | 5.46 | 4.55 | 64,100 |   |  			
            | 10/28/2011 | +0.30 / +6.00% | 5.20 | 5.30 | 5.10 | 5.30 | 5.21 | 4.55 | 96,400 |   |  
            | 10/27/2011 | +0.30 / +6.38% | 5.00 | 5.00 | 4.90 | 5.00 | 5.00 | 4.29 | 69,400 |   |  			
            | 10/26/2011 | -0.30 / -6.00% | 4.90 | 5.00 | 4.70 | 4.70 | 4.92 | 4.04 | 99,800 |   |  
            | 10/25/2011 | -0.30 / -5.66% | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 4.29 | 3,700 |   |  			
            | 10/24/2011 | -0.30 / -5.36% | 5.30 | 5.30 | 5.30 | 5.30 | 5.30 | 4.55 | 100 |   |  
            | 10/21/2011 | -0.20 / -3.45% | 5.60 | 5.60 | 5.60 | 5.60 | 5.60 | 4.81 | 300 |   |  			
            | 10/20/2011 | +0.30 / +5.45% | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 | 4.98 | 0 |   |  
            | 10/19/2011 | +0.10 / +1.85% | 5.90 | 5.90 | 5.50 | 5.50 | 5.83 | 4.72 | 42,600 |   |  			
            | 10/18/2011 | -0.40 / -6.90% | 5.90 | 5.90 | 5.40 | 5.40 | 5.86 | 4.64 | 38,300 |   |  
            | 10/17/2011 | +0.40 / +7.41% | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 | 4.98 | 0 |   |  |