| 
                 
                    Closing price on 7/22/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.13 | 
                 
                
                    | High | 
                    4.14 | 
                 
                
                    | Low | 
                    4.01 | 
                     
                
                    | Volume | 
                    3,870 | 
                                 
                
                    | Split-adjusted Price | 
                    3.05 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
YBM Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/22/2020
             | 
            
                -0.14 / -3.37%
             |             
            
                4.13
             |           
            
                4.14
             |               
            
                4.01
             |                           
            
                4.01
             | 
            
                4.13
             |                     
            
                3.05
             |                                 
            
                3,870
             |            
            
                 
             |                                       
         
    
        
            | 
                7/21/2020
             | 
            
                -0.01 / -0.24%
             |             
            
                4.15
             |           
            
                4.16
             |               
            
                4.14
             |                           
            
                4.15
             | 
            
                4.16
             |                     
            
                3.16
             |                                 
            
                14,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/20/2020
             | 
            
                +0.06 / +1.46%
             |             
            
                4.10
             |           
            
                4.16
             |               
            
                4.09
             |                           
            
                4.16
             | 
            
                4.13
             |                     
            
                3.16
             |                                 
            
                2,250
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.01
             |           
            
                4.10
             |               
            
                3.95
             |                           
            
                4.10
             | 
            
                4.00
             |                     
            
                3.12
             |                                 
            
                16,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2020
             | 
            
                +0.06 / +1.49%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                4.03
             |                           
            
                4.10
             | 
            
                4.08
             |                     
            
                3.12
             |                                 
            
                1,190
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2020
             | 
            
                -0.06 / -1.46%
             |             
            
                3.90
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.04
             | 
            
                4.02
             |                     
            
                3.07
             |                                 
            
                2,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/14/2020
             | 
            
                +0.09 / +2.24%
             |             
            
                4.01
             |           
            
                4.10
             |               
            
                3.99
             |                           
            
                4.10
             | 
            
                4.05
             |                     
            
                3.12
             |                                 
            
                3,780
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2020
             | 
            
                +0.01 / +0.25%
             |             
            
                4.01
             |           
            
                4.11
             |               
            
                4.00
             |                           
            
                4.01
             | 
            
                4.03
             |                     
            
                3.05
             |                                 
            
                1,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2020
             | 
            
                -0.14 / -3.38%
             |             
            
                4.14
             |           
            
                4.14
             |               
            
                3.99
             |                           
            
                4.00
             | 
            
                4.07
             |                     
            
                3.04
             |                                 
            
                8,910
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2020
             | 
            
                +0.18 / +4.55%
             |             
            
                3.96
             |           
            
                4.14
             |               
            
                3.93
             |                           
            
                4.14
             | 
            
                4.06
             |                     
            
                3.15
             |                                 
            
                3,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2020
             | 
            
                -0.20 / -4.81%
             |             
            
                4.16
             |           
            
                4.16
             |               
            
                3.96
             |                           
            
                3.96
             | 
            
                4.06
             |                     
            
                3.01
             |                                 
            
                6,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2020
             | 
            
                -0.31 / -6.94%
             |             
            
                4.46
             |           
            
                4.46
             |               
            
                4.16
             |                           
            
                4.16
             | 
            
                4.19
             |                     
            
                3.16
             |                                 
            
                16,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2020
             | 
            
                -0.12 / -2.61%
             |             
            
                4.27
             |           
            
                4.52
             |               
            
                4.27
             |                           
            
                4.47
             | 
            
                4.30
             |                     
            
                3.40
             |                                 
            
                10,930
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.59
             |               
            
                4.27
             |                           
            
                4.59
             | 
            
                4.44
             |                     
            
                3.49
             |                                 
            
                3,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2020
             | 
            
                +0.17 / +3.85%
             |             
            
                4.69
             |           
            
                4.69
             |               
            
                4.13
             |                           
            
                4.59
             | 
            
                4.53
             |                     
            
                3.49
             |                                 
            
                9,260
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2020
             | 
            
                +0.28 / +6.76%
             |             
            
                4.14
             |           
            
                4.42
             |               
            
                4.00
             |                           
            
                4.42
             | 
            
                4.12
             |                     
            
                3.36
             |                                 
            
                18,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/30/2020
             | 
            
                -0.31 / -6.97%
             |             
            
                4.46
             |           
            
                4.61
             |               
            
                4.14
             |                           
            
                4.14
             | 
            
                4.41
             |                     
            
                3.15
             |                                 
            
                9,070
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2020
             | 
            
                -0.31 / -6.51%
             |             
            
                4.53
             |           
            
                4.90
             |               
            
                4.45
             |                           
            
                4.45
             | 
            
                4.54
             |                     
            
                3.38
             |                                 
            
                5,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/26/2020
             | 
            
                -0.04 / -0.83%
             |             
            
                4.95
             |           
            
                4.95
             |               
            
                4.70
             |                           
            
                4.76
             | 
            
                4.72
             |                     
            
                3.62
             |                                 
            
                1,270
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2020
             | 
            
                +0.08 / +1.69%
             |             
            
                4.70
             |           
            
                4.91
             |               
            
                4.70
             |                           
            
                4.80
             | 
            
                4.90
             |                     
            
                3.65
             |                                 
            
                5,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/24/2020
             | 
            
                -0.18 / -3.67%
             |             
            
                4.89
             |           
            
                5.06
             |               
            
                4.72
             |                           
            
                4.72
             | 
            
                4.91
             |                     
            
                3.59
             |                                 
            
                3,870
             |            
            
                 
             |                                       
         
    
        
            | 
                6/23/2020
             | 
            
                +0.31 / +6.75%
             |             
            
                4.60
             |           
            
                4.91
             |               
            
                4.60
             |                           
            
                4.90
             | 
            
                4.88
             |                     
            
                3.73
             |                                 
            
                18,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2020
             | 
            
                +0.12 / +2.68%
             |             
            
                4.47
             |           
            
                4.59
             |               
            
                4.39
             |                           
            
                4.59
             | 
            
                4.41
             |                     
            
                3.49
             |                                 
            
                6,810
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2020
             | 
            
                -0.03 / -0.67%
             |             
            
                4.31
             |           
            
                4.60
             |               
            
                4.31
             |                           
            
                4.47
             | 
            
                4.46
             |                     
            
                3.40
             |                                 
            
                7,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2020
             | 
            
                -0.24 / -5.06%
             |             
            
                4.74
             |           
            
                4.74
             |               
            
                4.45
             |                           
            
                4.50
             | 
            
                4.61
             |                     
            
                3.42
             |                                 
            
                2,750
             |            
            
                 
             |                                       
         
    
        
            | 
                6/17/2020
             | 
            
                +0.03 / +0.64%
             |             
            
                4.79
             |           
            
                4.79
             |               
            
                4.50
             |                           
            
                4.74
             | 
            
                4.70
             |                     
            
                3.61
             |                                 
            
                3,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/16/2020
             | 
            
                +0.01 / +0.21%
             |             
            
                4.39
             |           
            
                4.71
             |               
            
                4.38
             |                           
            
                4.71
             | 
            
                4.69
             |                     
            
                3.58
             |                                 
            
                3,410
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.38
             |                           
            
                4.70
             | 
            
                4.58
             |                     
            
                3.57
             |                                 
            
                14,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2020
             | 
            
                -0.06 / -1.26%
             |             
            
                4.76
             |           
            
                4.76
             |               
            
                4.43
             |                           
            
                4.70
             | 
            
                4.58
             |                     
            
                3.57
             |                                 
            
                13,970
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2020
             | 
            
                -0.01 / -0.21%
             |             
            
                4.90
             |           
            
                4.95
             |               
            
                4.76
             |                           
            
                4.76
             | 
            
                4.85
             |                     
            
                3.62
             |                                 
            
                59,020
             |  
            
                 
             |                                                              
             
    
         
    
    
 |