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            | 
                    Closing price on 11/30/2012
                 |  |  
    
        |           
                
                    | Open | 7.00 |  
                    | High | 7.00 |  
                    | Low | 6.80 |  
                    | Volume | 39,110 |  
                    | Split-adjusted Price | 3.98 |  
                
             | 
 |  PXS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/30/2012 | -0.20 / -2.86% | 7.00 | 7.00 | 6.80 | 6.80 | 6.80 | 3.98 | 39,110 |   |  
            | 11/29/2012 | 0.00 / 0.00% | 7.00 | 7.10 | 7.00 | 7.00 | 7.00 | 4.09 | 20,020 |   |  			
            | 11/28/2012 | -0.10 / -1.41% | 7.10 | 7.10 | 6.90 | 7.00 | 7.00 | 4.09 | 41,000 |   |  
            | 11/27/2012 | -1.10 / -13.41% | 7.20 | 7.30 | 7.00 | 7.10 | 7.10 | 4.15 | 86,200 |   |  			
            | 11/26/2012 | -0.20 / -2.38% | 8.40 | 8.40 | 8.20 | 8.20 | 8.20 | 4.21 | 97,920 |   |  
            | 11/23/2012 | +0.10 / +1.20% | 8.30 | 8.50 | 8.30 | 8.40 | 8.40 | 4.31 | 138,360 |   |  			
            | 11/22/2012 | 0.00 / 0.00% | 8.30 | 8.40 | 8.20 | 8.30 | 8.30 | 4.26 | 137,470 |   |  
            | 11/21/2012 | -0.10 / -1.19% | 8.50 | 8.50 | 8.30 | 8.30 | 8.30 | 4.26 | 81,060 |   |  			
            | 11/20/2012 | -0.10 / -1.18% | 8.50 | 8.50 | 8.30 | 8.40 | 8.40 | 4.31 | 103,130 |   |  
            | 11/19/2012 | 0.00 / 0.00% | 8.50 | 8.60 | 8.50 | 8.50 | 8.50 | 4.37 | 89,580 |   |  			
            | 11/16/2012 | 0.00 / 0.00% | 8.60 | 8.60 | 8.30 | 8.50 | 8.50 | 4.37 | 159,670 |   |  
            | 11/15/2012 | +0.40 / +4.94% | 8.00 | 8.50 | 8.00 | 8.50 | 8.50 | 4.37 | 543,470 |   |  			
            | 11/14/2012 | 0.00 / 0.00% | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 4.16 | 56,000 |   |  
            | 11/13/2012 | 0.00 / 0.00% | 7.90 | 8.10 | 7.90 | 8.10 | 8.10 | 4.16 | 53,210 |   |  			
            | 11/12/2012 | +0.10 / +1.25% | 8.10 | 8.10 | 7.90 | 8.10 | 8.10 | 4.16 | 81,090 |   |  
            | 11/9/2012 | +0.10 / +1.27% | 8.00 | 8.00 | 7.80 | 8.00 | 8.00 | 4.11 | 25,140 |   |  			
            | 11/8/2012 | -0.20 / -2.47% | 8.00 | 8.00 | 7.90 | 7.90 | 7.90 | 4.06 | 49,000 |   |  
            | 11/7/2012 | +0.10 / +1.25% | 8.00 | 8.10 | 8.00 | 8.10 | 8.10 | 4.16 | 39,490 |   |  			
            | 11/6/2012 | 0.00 / 0.00% | 8.10 | 8.10 | 7.80 | 8.00 | 8.00 | 4.11 | 84,970 |   |  
            | 11/5/2012 | +0.20 / +2.56% | 7.80 | 8.00 | 7.80 | 8.00 | 8.00 | 4.11 | 31,100 |   |  			
            | 11/2/2012 | -0.30 / -3.70% | 7.80 | 7.90 | 7.70 | 7.80 | 7.80 | 4.01 | 148,780 |   |  
            | 11/1/2012 | +0.20 / +2.53% | 7.90 | 8.10 | 7.90 | 8.10 | 8.10 | 4.16 | 168,160 |   |  			
            | 10/31/2012 | 0.00 / 0.00% | 7.90 | 7.90 | 7.70 | 7.90 | 7.90 | 4.06 | 102,190 |   |  
            | 10/30/2012 | -0.10 / -1.25% | 8.00 | 8.10 | 7.90 | 7.90 | 7.90 | 4.06 | 54,560 |   |  			
            | 10/29/2012 | +0.10 / +1.27% | 7.90 | 8.10 | 7.90 | 8.00 | 8.00 | 4.11 | 77,980 |   |  
            | 10/26/2012 | -0.30 / -3.66% | 7.80 | 8.00 | 7.80 | 7.90 | 7.90 | 4.06 | 599,540 |   |  			
            | 10/25/2012 | -0.40 / -4.65% | 8.20 | 8.20 | 8.20 | 8.20 | 8.20 | 4.21 | 170,550 |   |  
            | 10/24/2012 | -0.40 / -4.44% | 9.00 | 9.00 | 8.60 | 8.60 | 8.60 | 4.42 | 222,150 |   |  			
            | 10/23/2012 | +0.10 / +1.12% | 9.00 | 9.00 | 8.90 | 9.00 | 9.00 | 4.62 | 21,870 |   |  
            | 10/22/2012 | -0.10 / -1.11% | 9.00 | 9.00 | 8.80 | 8.90 | 8.90 | 4.57 | 22,670 |   |  |