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                    Closing price on 8/28/2013
                 |  |  
    
        |           
                
                    | Open | 8.30 |  
                    | High | 8.30 |  
                    | Low | 8.20 |  
                    | Volume | 51,500 |  
                    | Split-adjusted Price | 5.14 |  
                
             | 
 |  SD6 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/28/2013 | -0.20 / -2.38% | 8.30 | 8.30 | 8.20 | 8.20 | 8.26 | 5.14 | 51,500 |   |  
            | 8/27/2013 | 0.00 / 0.00% | 8.40 | 8.40 | 8.20 | 8.40 | 8.31 | 5.26 | 31,100 |   |  			
            | 8/26/2013 | 0.00 / 0.00% | 8.30 | 8.40 | 8.30 | 8.40 | 8.30 | 5.26 | 28,800 |   |  
            | 8/23/2013 | -0.30 / -3.45% | 8.60 | 8.60 | 8.40 | 8.40 | 8.48 | 5.26 | 64,000 |   |  			
            | 8/22/2013 | 0.00 / 0.00% | 8.60 | 8.70 | 8.50 | 8.70 | 8.60 | 5.45 | 37,700 |   |  
            | 8/21/2013 | -0.10 / -1.14% | 8.70 | 8.80 | 8.60 | 8.70 | 8.66 | 5.45 | 74,200 |   |  			
            | 8/20/2013 | +0.10 / +1.15% | 8.90 | 8.90 | 8.60 | 8.80 | 8.70 | 5.51 | 80,051 |   |  
            | 8/19/2013 | 0.00 / 0.00% | 8.70 | 8.80 | 8.60 | 8.70 | 8.70 | 5.45 | 56,800 |   |  			
            | 8/16/2013 | 0.00 / 0.00% | 8.70 | 8.70 | 8.60 | 8.70 | 8.70 | 5.45 | 24,600 |   |  
            | 8/15/2013 | +0.40 / +4.82% | 8.50 | 8.70 | 8.40 | 8.70 | 8.56 | 5.45 | 110,310 |   |  			
            | 8/14/2013 | -0.20 / -2.35% | 8.50 | 8.50 | 8.30 | 8.30 | 8.40 | 5.20 | 50,400 |   |  
            | 8/13/2013 | 0.00 / 0.00% | 8.40 | 8.50 | 8.40 | 8.50 | 8.40 | 5.32 | 30,620 |   |  			
            | 8/12/2013 | +0.10 / +1.19% | 8.40 | 8.50 | 8.30 | 8.50 | 8.34 | 5.32 | 62,078 |   |  
            | 8/9/2013 | +0.10 / +1.20% | 8.30 | 8.40 | 8.30 | 8.40 | 8.33 | 5.26 | 89,900 |   |  			
            | 8/8/2013 | -0.10 / -1.19% | 8.50 | 8.50 | 8.30 | 8.30 | 8.40 | 5.20 | 28,600 |   |  
            | 8/7/2013 | +0.10 / +1.20% | 8.40 | 8.50 | 8.30 | 8.40 | 8.39 | 5.26 | 15,600 |   |  			
            | 8/6/2013 | 0.00 / 0.00% | 8.40 | 8.40 | 8.30 | 8.30 | 8.35 | 5.20 | 50,562 |   |  
            | 8/5/2013 | 0.00 / 0.00% | 8.30 | 8.40 | 8.30 | 8.30 | 8.30 | 5.20 | 20,700 |   |  			
            | 8/2/2013 | +0.10 / +1.22% | 8.30 | 8.30 | 8.20 | 8.30 | 8.23 | 5.20 | 21,700 |   |  
            | 8/1/2013 | 0.00 / 0.00% | 8.20 | 8.30 | 8.20 | 8.20 | 8.28 | 5.14 | 16,600 |   |  			
            | 7/31/2013 | 0.00 / 0.00% | 8.20 | 8.20 | 8.00 | 8.20 | 8.11 | 5.14 | 49,020 |   |  
            | 7/30/2013 | 0.00 / 0.00% | 8.30 | 8.30 | 8.10 | 8.20 | 8.17 | 5.14 | 42,390 |   |  			
            | 7/29/2013 | -0.10 / -1.20% | 8.40 | 8.40 | 8.00 | 8.20 | 8.11 | 5.14 | 51,510 |   |  
            | 7/26/2013 | -0.20 / -2.35% | 8.50 | 8.50 | 8.10 | 8.30 | 8.21 | 5.20 | 68,832 |   |  			
            | 7/25/2013 | -0.10 / -1.16% | 8.70 | 8.70 | 8.50 | 8.50 | 8.55 | 5.32 | 42,800 |   |  
            | 7/24/2013 | -0.30 / -3.37% | 8.70 | 8.70 | 8.50 | 8.60 | 8.64 | 5.39 | 124,500 |   |  			
            | 7/23/2013 | -1.40 / -13.59% | 8.80 | 9.00 | 8.80 | 8.90 | 8.86 | 5.57 | 76,770 |   |  
            | 7/22/2013 | 0.00 / 0.00% | 10.30 | 10.40 | 10.20 | 10.30 | 10.32 | 5.51 | 164,800 |   |  			
            | 7/19/2013 | 0.00 / 0.00% | 10.30 | 10.40 | 10.20 | 10.30 | 10.30 | 5.51 | 122,000 |   |  
            | 7/18/2013 | -0.10 / -0.96% | 10.40 | 10.40 | 10.30 | 10.30 | 10.33 | 5.51 | 80,301 |   |  |