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                    Closing price on 8/4/2021
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                    | Open | 8.50 |  
                    | High | 8.50 |  
                    | Low | 8.50 |  
                    | Volume | 500 |  
                    | Split-adjusted Price | 6.72 |  
                
             | 
 |  MDC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/4/2021 | +0.10 / +1.19% | 8.50 | 8.50 | 8.50 | 8.50 | 8.50 | 6.72 | 500 |   |  
            | 8/3/2021 | -0.10 / -1.18% | 8.50 | 8.50 | 8.40 | 8.40 | 8.50 | 6.64 | 900 |   |  			
            | 8/2/2021 | -0.50 / -5.56% | 8.40 | 8.50 | 8.40 | 8.50 | 8.50 | 6.72 | 200 |   |  
            | 7/30/2021 | -0.10 / -1.10% | 9.20 | 9.20 | 9.00 | 9.00 | 9.19 | 7.11 | 12,400 |   |  			
            | 7/29/2021 | +0.30 / +3.41% | 9.00 | 9.10 | 9.00 | 9.10 | 9.00 | 7.19 | 3,700 |   |  
            | 7/28/2021 | +0.40 / +4.76% | 8.80 | 9.10 | 8.80 | 8.80 | 8.80 | 6.95 | 5,600 |   |  			
            | 7/27/2021 | 0.00 / 0.00% | 8.40 | 8.40 | 8.40 | 8.40 | 8.40 | 6.64 | 400 |   |  
            | 7/26/2021 | -0.10 / -1.18% | 9.00 | 9.00 | 8.40 | 8.40 | 9.00 | 6.64 | 25,000 |   |  			
            | 7/23/2021 | 0.00 / 0.00% | 8.50 | 8.50 | 8.50 | 8.50 | 8.50 | 6.72 | 100 |   |  
            | 7/22/2021 | 0.00 / 0.00% | 8.40 | 8.50 | 8.40 | 8.50 | 8.48 | 6.72 | 3,300 |   |  			
            | 7/21/2021 | -0.20 / -2.30% | 8.50 | 8.50 | 8.50 | 8.50 | 8.50 | 6.72 | 700 |   |  
            | 7/20/2021 | +0.30 / +3.57% | 8.70 | 8.70 | 8.70 | 8.70 | 8.70 | 6.87 | 3,100 |   |  			
            | 7/19/2021 | -0.40 / -4.55% | 9.00 | 9.10 | 8.40 | 8.40 | 8.99 | 6.64 | 31,700 |   |  
            | 7/16/2021 | +0.10 / +1.15% | 8.70 | 9.20 | 8.70 | 8.80 | 8.70 | 6.95 | 2,200 |   |  			
            | 7/15/2021 | +0.10 / +1.16% | 8.40 | 8.70 | 8.40 | 8.70 | 8.49 | 6.87 | 152,953 |   |  
            | 7/14/2021 | +0.30 / +3.61% | 8.70 | 8.80 | 8.60 | 8.60 | 8.68 | 6.80 | 5,300 |   |  			
            | 7/13/2021 | +0.70 / +9.21% | 7.90 | 8.30 | 7.70 | 8.30 | 8.21 | 6.56 | 8,400 |   |  
            | 7/12/2021 | -0.70 / -8.43% | 8.30 | 8.30 | 7.60 | 7.60 | 7.94 | 6.01 | 10,700 |   |  			
            | 7/9/2021 | -0.70 / -7.78% | 8.20 | 8.40 | 8.20 | 8.30 | 8.38 | 6.56 | 9,900 |   |  
            | 7/8/2021 | +0.40 / +4.65% | 8.80 | 9.00 | 8.80 | 9.00 | 8.92 | 7.11 | 7,400 |   |  			
            | 7/7/2021 | -0.70 / -7.53% | 8.70 | 9.30 | 8.40 | 8.60 | 8.48 | 6.80 | 12,500 |   |  
            | 7/6/2021 | -0.70 / -7.00% | 9.00 | 9.50 | 9.00 | 9.30 | 9.40 | 7.35 | 8,400 |   |  			
            | 7/5/2021 | -0.30 / -2.91% | 10.20 | 10.20 | 9.50 | 10.00 | 9.85 | 7.90 | 13,600 |   |  
            | 7/2/2021 | +0.20 / +1.98% | 10.30 | 10.90 | 10.30 | 10.30 | 10.57 | 8.14 | 8,800 |   |  			
            | 7/1/2021 | -1.00 / -9.01% | 11.10 | 11.10 | 10.10 | 10.10 | 10.21 | 7.98 | 24,000 |   |  
            | 6/30/2021 | +0.90 / +8.82% | 11.20 | 11.20 | 10.50 | 11.10 | 11.06 | 8.77 | 46,100 |   |  			
            | 6/29/2021 | +0.90 / +9.68% | 10.20 | 10.20 | 9.30 | 10.20 | 10.17 | 8.06 | 36,200 |   |  
            | 6/28/2021 | +0.80 / +9.41% | 8.80 | 9.30 | 8.60 | 9.30 | 8.97 | 7.35 | 12,600 |   |  			
            | 6/25/2021 | -0.30 / -3.41% | 8.50 | 8.60 | 8.50 | 8.50 | 8.54 | 6.72 | 13,700 |   |  
            | 6/24/2021 | -0.50 / -5.38% | 8.50 | 9.90 | 8.50 | 8.80 | 8.81 | 6.95 | 20,100 |   |  |