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                    Closing price on 9/24/2015
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        |           
                
                    | Open | 2.90 |  
                    | High | 3.00 |  
                    | Low | 2.90 |  
                    | Volume | 9,840 |  
                    | Split-adjusted Price | 2.79 |  
                
             | 
 |  VOS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/24/2015 | +0.10 / +3.45% | 2.90 | 3.00 | 2.90 | 3.00 | 2.95 | 2.79 | 9,840 |   |  
            | 9/23/2015 | -0.10 / -3.33% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.70 | 3,110 |   |  			
            | 9/22/2015 | +0.10 / +3.45% | 2.90 | 3.00 | 2.90 | 3.00 | 2.95 | 2.79 | 29,010 |   |  
            | 9/21/2015 | -0.10 / -3.33% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.70 | 4,470 |   |  			
            | 9/18/2015 | +0.10 / +3.45% | 2.90 | 3.00 | 2.90 | 3.00 | 2.90 | 2.79 | 58,940 |   |  
            | 9/17/2015 | -0.10 / -3.33% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.70 | 13,880 |   |  			
            | 9/16/2015 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 2.79 | 0 |   |  
            | 9/15/2015 | +0.10 / +3.45% | 2.90 | 3.00 | 2.90 | 3.00 | 2.90 | 2.79 | 16,550 |   |  			
            | 9/14/2015 | -0.10 / -3.33% | 3.00 | 3.00 | 2.90 | 2.90 | 2.91 | 2.70 | 18,200 |   |  
            | 9/11/2015 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 2.79 | 6,030 |   |  			
            | 9/10/2015 | 0.00 / 0.00% | 2.90 | 3.00 | 2.90 | 3.00 | 2.97 | 2.79 | 32,010 |   |  
            | 9/9/2015 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 2.79 | 59,350 |   |  			
            | 9/8/2015 | +0.10 / +3.45% | 2.80 | 3.00 | 2.80 | 3.00 | 2.92 | 2.79 | 41,450 |   |  
            | 9/7/2015 | -0.10 / -3.33% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.70 | 48,080 |   |  			
            | 9/4/2015 | 0.00 / 0.00% | 2.80 | 3.00 | 2.80 | 3.00 | 2.90 | 2.79 | 54,410 |   |  
            | 9/3/2015 | +0.10 / +3.45% | 2.90 | 3.00 | 2.90 | 3.00 | 2.94 | 2.79 | 52,390 |   |  			
            | 9/1/2015 | -0.10 / -3.33% | 3.10 | 3.10 | 2.90 | 2.90 | 2.95 | 2.70 | 37,300 |   |  
            | 8/31/2015 | 0.00 / 0.00% | 3.00 | 3.10 | 3.00 | 3.00 | 3.03 | 2.79 | 46,070 |   |  			
            | 8/28/2015 | +0.10 / +3.45% | 3.00 | 3.10 | 2.90 | 3.00 | 3.00 | 2.79 | 96,890 |   |  
            | 8/27/2015 | +0.10 / +3.57% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.70 | 36,360 |   |  			
            | 8/26/2015 | +0.10 / +3.70% | 2.70 | 2.80 | 2.70 | 2.80 | 2.77 | 2.61 | 17,680 |   |  
            | 8/25/2015 | -0.10 / -3.57% | 2.70 | 2.80 | 2.70 | 2.70 | 2.75 | 2.51 | 92,130 |   |  			
            | 8/24/2015 | -0.20 / -6.67% | 2.90 | 3.00 | 2.80 | 2.80 | 2.82 | 2.61 | 74,460 |   |  
            | 8/21/2015 | 0.00 / 0.00% | 3.00 | 3.10 | 2.80 | 3.00 | 2.86 | 2.79 | 122,730 |   |  			
            | 8/20/2015 | -0.20 / -6.25% | 3.10 | 3.20 | 3.00 | 3.00 | 3.06 | 2.79 | 87,790 |   |  
            | 8/19/2015 | 0.00 / 0.00% | 3.10 | 3.20 | 3.10 | 3.20 | 3.15 | 2.98 | 28,410 |   |  			
            | 8/18/2015 | +0.10 / +3.23% | 3.20 | 3.30 | 3.10 | 3.20 | 3.14 | 2.98 | 173,530 |   |  
            | 8/17/2015 | -0.10 / -3.13% | 3.10 | 3.30 | 3.10 | 3.10 | 3.18 | 2.89 | 47,900 |   |  			
            | 8/14/2015 | -0.10 / -3.03% | 3.10 | 3.30 | 3.10 | 3.20 | 3.18 | 2.98 | 51,960 |   |  
            | 8/13/2015 | -0.20 / -5.71% | 3.50 | 3.50 | 3.30 | 3.30 | 3.32 | 3.07 | 218,180 |   |  |