| 
                 
                    Closing price on 7/23/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    8.50 | 
                 
                
                    | High | 
                    8.50 | 
                 
                
                    | Low | 
                    8.50 | 
                     
                
                    | Volume | 
                    100 | 
                                 
                
                    | Split-adjusted Price | 
                    6.72 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
MDC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/23/2021
             | 
            
                -0.30 / -2.94%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.20
             |                           
            
                9.90
             | 
            
                9.63
             |                     
            
                7.35
             |                                 
            
                24,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/22/2021
             | 
            
                +0.70 / +7.37%
             |             
            
                9.50
             |           
            
                10.30
             |               
            
                9.50
             |                           
            
                10.20
             | 
            
                9.85
             |                     
            
                7.57
             |                                 
            
                13,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2021
             | 
            
                +0.80 / +9.20%
             |             
            
                8.80
             |           
            
                9.50
             |               
            
                8.80
             |                           
            
                9.50
             | 
            
                9.37
             |                     
            
                7.05
             |                                 
            
                76,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2021
             | 
            
                +0.10 / +1.16%
             |             
            
                8.40
             |           
            
                8.80
             |               
            
                8.40
             |                           
            
                8.70
             | 
            
                8.53
             |                     
            
                6.46
             |                                 
            
                44,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.30
             |           
            
                8.60
             |               
            
                8.20
             |                           
            
                8.60
             | 
            
                8.33
             |                     
            
                6.38
             |                                 
            
                3,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/16/2021
             | 
            
                -0.20 / -2.27%
             |             
            
                8.10
             |           
            
                8.60
             |               
            
                8.10
             |                           
            
                8.60
             | 
            
                8.50
             |                     
            
                6.38
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/15/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.80
             |           
            
                8.80
             |               
            
                8.10
             |                           
            
                8.80
             | 
            
                8.28
             |                     
            
                6.53
             |                                 
            
                8,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.60
             |           
            
                9.60
             |               
            
                8.30
             |                           
            
                8.80
             | 
            
                8.70
             |                     
            
                6.53
             |                                 
            
                4,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |