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                    Closing price on 5/28/2021
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        |           
                
                    | Open | 7.80 |  
                    | High | 7.80 |  
                    | Low | 7.80 |  
                    | Volume | 1,100 |  
                    | Split-adjusted Price | 5.79 |  
                
             | 
 |  MDC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/28/2021 | 0.00 / 0.00% | 7.80 | 7.80 | 7.80 | 7.80 | 7.80 | 5.79 | 1,100 |   |  
            | 5/27/2021 | 0.00 / 0.00% | 7.80 | 7.80 | 7.80 | 7.80 | 7.80 | 5.79 | 0 |   |  			
            | 5/26/2021 | 0.00 / 0.00% | 7.80 | 7.80 | 7.80 | 7.80 | 7.80 | 5.79 | 0 |   |  
            | 5/25/2021 | 0.00 / 0.00% | 7.80 | 7.80 | 7.80 | 7.80 | 7.80 | 5.79 | 1,400 |   |  			
            | 5/24/2021 | -0.20 / -2.50% | 7.80 | 7.80 | 7.80 | 7.80 | 7.80 | 5.79 | 1,500 |   |  
            | 5/21/2021 | +0.60 / +8.11% | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | 5.94 | 100 |   |  			
            | 5/20/2021 | 0.00 / 0.00% | 7.40 | 7.40 | 7.40 | 7.40 | 7.40 | 5.49 | 600 |   |  
            | 5/19/2021 | 0.00 / 0.00% | 7.40 | 7.40 | 7.40 | 7.40 | 7.40 | 5.49 | 0 |   |  			
            | 5/18/2021 | -0.10 / -1.33% | 7.40 | 7.40 | 7.40 | 7.40 | 7.40 | 5.49 | 1,500 |   |  
            | 5/17/2021 | 0.00 / 0.00% | 7.50 | 7.50 | 7.50 | 7.50 | 7.50 | 5.57 | 0 |   |  			
            | 5/14/2021 | +0.10 / +1.35% | 7.50 | 7.50 | 7.50 | 7.50 | 7.50 | 5.57 | 1,600 |   |  
            | 5/13/2021 | -0.50 / -6.33% | 7.40 | 7.40 | 7.40 | 7.40 | 7.40 | 5.49 | 7,200 |   |  			
            | 5/12/2021 | 0.00 / 0.00% | 7.50 | 7.90 | 7.50 | 7.90 | 7.59 | 5.86 | 4,900 |   |  
            | 5/11/2021 | -0.10 / -1.25% | 7.90 | 7.90 | 7.90 | 7.90 | 7.90 | 5.86 | 700 |   |  			
            | 5/10/2021 | 0.00 / 0.00% | 7.60 | 8.00 | 7.60 | 8.00 | 7.63 | 5.94 | 1,200 |   |  
            | 5/7/2021 | 0.00 / 0.00% | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | 5.94 | 0 |   |  			
            | 5/6/2021 | 0.00 / 0.00% | 7.80 | 8.00 | 7.80 | 8.00 | 7.82 | 5.94 | 1,100 |   |  
            | 5/5/2021 | -0.10 / -1.23% | 7.60 | 8.00 | 7.60 | 8.00 | 7.67 | 5.94 | 1,200 |   |  			
            | 5/4/2021 | 0.00 / 0.00% | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 6.01 | 0 |   |  
            | 4/29/2021 | 0.00 / 0.00% | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 6.01 | 0 |   |  			
            | 4/28/2021 | 0.00 / 0.00% | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 6.01 | 0 |   |  
            | 4/27/2021 | 0.00 / 0.00% | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 6.01 | 0 |   |  			
            | 4/26/2021 | 0.00 / 0.00% | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 6.01 | 0 |   |  
            | 4/23/2021 | +0.30 / +3.85% | 7.80 | 8.10 | 7.80 | 8.10 | 7.84 | 6.01 | 700 |   |  			
            | 4/22/2021 | -0.10 / -1.27% | 7.90 | 7.90 | 7.80 | 7.80 | 7.80 | 5.79 | 2,300 |   |  
            | 4/20/2021 | -0.10 / -1.25% | 8.00 | 8.00 | 7.90 | 7.90 | 7.97 | 5.86 | 4,200 |   |  			
            | 4/19/2021 | -0.20 / -2.44% | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | 5.94 | 900 |   |  
            | 4/16/2021 | 0.00 / 0.00% | 8.20 | 8.20 | 8.20 | 8.20 | 8.20 | 6.09 | 1,100 |   |  			
            | 4/15/2021 | -0.20 / -2.38% | 8.40 | 8.50 | 8.20 | 8.20 | 8.34 | 6.09 | 7,100 |   |  
            | 4/14/2021 | 0.00 / 0.00% | 8.40 | 8.40 | 8.40 | 8.40 | 8.40 | 6.24 | 0 |   |  |