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                    Closing price on 8/10/2010
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                    | Open | 23.50 |  
                    | High | 23.50 |  
                    | Low | 23.30 |  
                    | Volume | 500 |  
                    | Split-adjusted Price | 2.25 |  
                
             | 
 |  DDN Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/10/2010 | -0.70 / -2.92% | 23.50 | 23.50 | 23.30 | 23.30 | 23.50 | 2.25 | 500 |   |  
            | 8/9/2010 | -0.50 / -2.04% | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 2.32 | 400 |   |  			
            | 8/6/2010 | 0.00 / 0.00% | 24.50 | 24.50 | 24.50 | 24.50 | 24.50 | 2.37 | 0 |   |  
            | 8/5/2010 | -0.50 / -2.00% | 24.50 | 24.50 | 24.50 | 24.50 | 24.50 | 2.37 | 400 |   |  			
            | 8/4/2010 | 0.00 / 0.00% | 25.00 | 25.00 | 25.00 | 25.00 | 25.00 | 2.42 | 0 |   |  
            | 8/3/2010 | -0.30 / -1.19% | 25.00 | 25.00 | 25.00 | 25.00 | 25.00 | 2.42 | 400 |   |  			
            | 8/2/2010 | 0.00 / 0.00% | 25.30 | 25.30 | 25.30 | 25.30 | 25.30 | 2.44 | 0 |   |  
            | 7/30/2010 | -2.50 / -9.09% | 25.00 | 28.00 | 25.00 | 25.00 | 27.50 | 2.42 | 2,200 |   |  			
            | 7/29/2010 | +1.50 / +5.77% | 27.50 | 27.50 | 27.50 | 27.50 | 27.50 | 2.66 | 500 |   |  
            | 7/28/2010 | -2.00 / -7.14% | 24.90 | 27.30 | 24.90 | 26.00 | 26.40 | 2.51 | 4,200 |   |  			
            | 7/27/2010 | -2.30 / -7.59% | 27.30 | 28.00 | 27.30 | 28.00 | 27.50 | 2.70 | 1,100 |   |  
            | 7/26/2010 | 0.00 / 0.00% | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 2.93 | 0 |   |  			
            | 7/23/2010 | 0.00 / 0.00% | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 2.93 | 0 |   |  
            | 7/22/2010 | 0.00 / 0.00% | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 2.93 | 0 |   |  			
            | 7/21/2010 | +0.30 / +1.00% | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 2.93 | 0 |   |  
            | 7/20/2010 | 0.00 / 0.00% | 31.30 | 32.00 | 30.00 | 30.00 | 30.30 | 2.90 | 18,700 |   |  			
            | 7/19/2010 | +0.70 / +2.39% | 30.00 | 30.00 | 29.90 | 30.00 | 29.90 | 2.90 | 7,100 |   |  
            | 7/16/2010 | +2.00 / +7.27% | 28.50 | 30.00 | 28.50 | 29.50 | 29.13 | 2.85 | 4,050 |   |  			
            | 7/15/2010 | -3.50 / -11.29% | 28.00 | 28.00 | 27.00 | 27.50 | 27.40 | 2.66 | 4,910 |   |  
            | 7/14/2010 | +0.40 / +1.31% | 31.00 | 31.00 | 28.00 | 31.00 | 30.40 | 2.99 | 105,200 |   |  			
            | 7/13/2010 | +4.10 / +15.47% | 30.60 | 30.60 | 25.20 | 30.60 | 28.80 | 2.96 | 1,950 |   |  
            | 7/12/2010 | -2.50 / -8.62% | 27.50 | 31.00 | 26.50 | 26.50 | 27.90 | 2.56 | 10,230 |   |  			
            | 7/9/2010 | +2.60 / +9.85% | 29.00 | 29.00 | 29.00 | 29.00 | 29.00 | 2.80 | 50 |   |  
            | 7/8/2010 | +2.40 / +10.00% | 26.20 | 26.40 | 26.20 | 26.40 | 26.40 | 2.55 | 8,050 |   |  			
            | 7/7/2010 | -1.70 / -6.61% | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 2.32 | 2,000 |   |  
            | 7/6/2010 | +2.00 / +8.44% | 25.70 | 25.70 | 25.70 | 25.70 | 25.70 | 2.48 | 7,000 |   |  			
            | 7/5/2010 | +2.10 / +9.72% | 20.50 | 23.70 | 20.50 | 23.70 | 23.40 | 2.29 | 11,330 |   |  
            | 7/2/2010 | +0.80 / +3.81% | 21.50 | 21.80 | 21.50 | 21.80 | 21.65 | 2.11 | 8,220 |   |  			
            | 7/1/2010 | 0.00 / 0.00% | 21.00 | 21.00 | 21.00 | 21.00 | 21.00 | 2.03 | 0 |   |  
            | 6/30/2010 | 0.00 / 0.00% | 21.00 | 21.00 | 21.00 | 21.00 | 21.00 | 2.03 | 0 |   |  |