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                    Closing price on 10/14/2021
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        |           
                
                    | Open | 16.90 |  
                    | High | 17.50 |  
                    | Low | 16.00 |  
                    | Volume | 49,100 |  
                    | Split-adjusted Price | 13.35 |  
                
             | 
 |  MDC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/14/2021 | 0.00 / 0.00% | 16.90 | 17.50 | 16.00 | 16.90 | 16.99 | 13.35 | 49,100 |   |  
            | 10/13/2021 | 0.00 / 0.00% | 16.90 | 16.90 | 16.20 | 16.90 | 16.60 | 13.35 | 65,500 |   |  			
            | 10/12/2021 | 0.00 / 0.00% | 17.00 | 17.70 | 16.90 | 16.90 | 17.13 | 13.35 | 53,700 |   |  
            | 10/11/2021 | -0.30 / -1.74% | 17.20 | 17.90 | 16.80 | 16.90 | 17.14 | 13.35 | 75,200 |   |  			
            | 10/8/2021 | -0.70 / -3.91% | 17.90 | 18.10 | 17.10 | 17.20 | 17.43 | 13.59 | 68,100 |   |  
            | 10/7/2021 | -1.50 / -7.73% | 18.90 | 18.90 | 17.80 | 17.90 | 18.10 | 14.14 | 105,400 |   |  			
            | 10/6/2021 | +0.40 / +2.11% | 19.00 | 19.50 | 17.50 | 19.40 | 18.79 | 15.33 | 71,000 |   |  
            | 10/5/2021 | +0.60 / +3.26% | 20.10 | 20.20 | 18.00 | 19.00 | 19.39 | 15.01 | 147,700 |   |  			
            | 10/4/2021 | +1.60 / +9.52% | 16.80 | 18.40 | 16.80 | 18.40 | 18.29 | 14.54 | 244,500 |   |  
            | 10/1/2021 | +0.10 / +0.60% | 16.70 | 17.20 | 16.10 | 16.80 | 16.84 | 13.27 | 41,800 |   |  			
            | 9/30/2021 | -0.50 / -2.91% | 17.20 | 17.50 | 16.40 | 16.70 | 16.84 | 13.20 | 37,400 |   |  
            | 9/29/2021 | +0.30 / +1.78% | 16.90 | 18.00 | 16.70 | 17.20 | 17.27 | 13.59 | 57,500 |   |  			
            | 9/28/2021 | +1.50 / +9.74% | 15.40 | 16.90 | 14.50 | 16.90 | 16.38 | 13.35 | 57,400 |   |  
            | 9/27/2021 | -1.50 / -8.88% | 15.50 | 16.80 | 15.40 | 15.40 | 15.50 | 12.17 | 36,200 |   |  			
            | 9/24/2021 | -0.10 / -0.59% | 15.70 | 17.50 | 15.30 | 16.90 | 16.57 | 13.35 | 67,000 |   |  
            | 9/23/2021 | -0.70 / -3.95% | 17.70 | 17.90 | 16.20 | 17.00 | 17.04 | 13.43 | 22,300 |   |  			
            | 9/22/2021 | +0.50 / +2.91% | 17.20 | 18.50 | 17.00 | 17.70 | 17.76 | 13.99 | 63,000 |   |  
            | 9/21/2021 | +1.50 / +9.55% | 15.00 | 17.20 | 14.20 | 17.20 | 15.86 | 13.59 | 95,000 |   |  			
            | 9/20/2021 | -1.30 / -7.65% | 17.00 | 17.00 | 15.30 | 15.70 | 15.85 | 12.41 | 40,200 |   |  
            | 9/17/2021 | -1.00 / -5.56% | 18.50 | 19.60 | 16.20 | 17.00 | 18.03 | 13.43 | 126,500 |   |  			
            | 9/16/2021 | +1.50 / +9.09% | 17.50 | 18.10 | 16.50 | 18.00 | 17.25 | 14.22 | 138,300 |   |  
            | 9/15/2021 | +1.50 / +10.00% | 16.50 | 16.50 | 16.00 | 16.50 | 16.48 | 13.04 | 59,600 |   |  			
            | 9/14/2021 | +1.30 / +9.49% | 13.70 | 15.00 | 13.70 | 15.00 | 14.94 | 11.85 | 26,700 |   |  
            | 9/13/2021 | +1.20 / +9.60% | 13.10 | 13.70 | 13.10 | 13.70 | 13.57 | 10.83 | 54,100 |   |  			
            | 9/10/2021 | +0.50 / +4.17% | 12.10 | 13.20 | 12.10 | 12.50 | 12.61 | 9.88 | 41,000 |   |  
            | 9/9/2021 | +0.20 / +1.69% | 12.00 | 12.10 | 12.00 | 12.00 | 12.03 | 9.48 | 14,800 |   |  			
            | 9/8/2021 | -1.30 / -9.92% | 12.90 | 12.90 | 11.80 | 11.80 | 11.94 | 9.32 | 54,700 |   |  
            | 9/7/2021 | +1.00 / +8.26% | 12.80 | 13.30 | 12.80 | 13.10 | 13.15 | 10.35 | 49,200 |   |  			
            | 9/6/2021 | +1.10 / +10.00% | 11.20 | 12.10 | 11.00 | 12.10 | 12.01 | 9.56 | 29,800 |   |  
            | 9/1/2021 | +1.00 / +10.00% | 10.50 | 11.00 | 10.20 | 11.00 | 10.89 | 8.69 | 92,508 |   |  |