| 
                 
                    Closing price on 12/6/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    1.70 | 
                 
                
                    | High | 
                    1.70 | 
                 
                
                    | Low | 
                    1.50 | 
                     
                
                    | Volume | 
                    436,820 | 
                                 
                
                    | Split-adjusted Price | 
                    1.50 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
ACM Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/6/2017
             | 
            
                -0.10 / -6.25%
             |             
            
                1.70
             |           
            
                1.70
             |               
            
                1.50
             |                           
            
                1.50
             | 
            
                1.58
             |                     
            
                1.50
             |                                 
            
                436,820
             |            
            
                 
             |                                       
         
    
        
            | 
                12/5/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.70
             |           
            
                1.70
             |               
            
                1.50
             |                           
            
                1.60
             | 
            
                1.61
             |                     
            
                1.60
             |                                 
            
                679,713
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/4/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.60
             |           
            
                1.70
             |               
            
                1.50
             |                           
            
                1.60
             | 
            
                1.56
             |                     
            
                1.60
             |                                 
            
                764,117
             |            
            
                 
             |                                       
         
    
        
            | 
                12/1/2017
             | 
            
                +0.10 / +6.67%
             |             
            
                1.50
             |           
            
                1.60
             |               
            
                1.40
             |                           
            
                1.60
             | 
            
                1.51
             |                     
            
                1.60
             |                                 
            
                369,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/30/2017
             | 
            
                +0.10 / +7.14%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.50
             | 
            
                1.45
             |                     
            
                1.50
             |                                 
            
                277,323
             |            
            
                 
             |                                       
         
    
        
            | 
                11/29/2017
             | 
            
                -0.10 / -6.67%
             |             
            
                1.60
             |           
            
                1.60
             |               
            
                1.40
             |                           
            
                1.40
             | 
            
                1.46
             |                     
            
                1.40
             |                                 
            
                155,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/28/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.60
             |               
            
                1.40
             |                           
            
                1.50
             | 
            
                1.50
             |                     
            
                1.50
             |                                 
            
                555,855
             |            
            
                 
             |                                       
         
    
        
            | 
                11/27/2017
             | 
            
                +0.10 / +7.14%
             |             
            
                1.40
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.50
             | 
            
                1.49
             |                     
            
                1.50
             |                                 
            
                258,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/24/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.40
             | 
            
                1.41
             |                     
            
                1.40
             |                                 
            
                63,270
             |            
            
                 
             |                                       
         
    
        
            | 
                11/23/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.30
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                225,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/22/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                223,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/21/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.30
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                419,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/20/2017
             | 
            
                -0.10 / -6.67%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                127,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/17/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.50
             | 
            
                1.46
             |                     
            
                1.50
             |                                 
            
                53,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/16/2017
             | 
            
                +0.10 / +7.14%
             |             
            
                1.40
             |           
            
                1.50
             |               
            
                1.30
             |                           
            
                1.50
             | 
            
                1.41
             |                     
            
                1.50
             |                                 
            
                199,915
             |            
            
                 
             |                                       
         
    
        
            | 
                11/15/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.40
             |           
            
                1.40
             |               
            
                1.30
             |                           
            
                1.40
             | 
            
                1.35
             |                     
            
                1.40
             |                                 
            
                89,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/14/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.40
             |           
            
                1.40
             |               
            
                1.30
             |                           
            
                1.40
             | 
            
                1.37
             |                     
            
                1.40
             |                                 
            
                173,038
             |            
            
                 
             |                                       
         
    
        
            | 
                11/13/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.30
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                437,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/10/2017
             | 
            
                -0.10 / -6.67%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.40
             | 
            
                1.44
             |                     
            
                1.40
             |                                 
            
                56,445
             |            
            
                 
             |                                       
         
    
        
            | 
                11/9/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.50
             | 
            
                1.49
             |                     
            
                1.50
             |                                 
            
                78,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/8/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.60
             |               
            
                1.50
             |                           
            
                1.50
             | 
            
                1.50
             |                     
            
                1.50
             |                                 
            
                468,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/7/2017
             | 
            
                +0.10 / +7.14%
             |             
            
                1.40
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.50
             | 
            
                1.44
             |                     
            
                1.50
             |                                 
            
                74,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/6/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.40
             |           
            
                1.50
             |               
            
                1.30
             |                           
            
                1.40
             | 
            
                1.39
             |                     
            
                1.40
             |                                 
            
                336,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/3/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.40
             |           
            
                1.50
             |               
            
                1.30
             |                           
            
                1.40
             | 
            
                1.38
             |                     
            
                1.40
             |                                 
            
                498,902
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/2/2017
             | 
            
                -0.10 / -6.67%
             |             
            
                1.50
             |           
            
                1.50
             |               
            
                1.40
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                790,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/1/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.50
             |           
            
                1.60
             |               
            
                1.40
             |                           
            
                1.50
             | 
            
                1.50
             |                     
            
                1.50
             |                                 
            
                595,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/31/2017
             | 
            
                -0.10 / -6.25%
             |             
            
                1.60
             |           
            
                1.60
             |               
            
                1.50
             |                           
            
                1.50
             | 
            
                1.57
             |                     
            
                1.50
             |                                 
            
                345,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/30/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.60
             |           
            
                1.70
             |               
            
                1.60
             |                           
            
                1.60
             | 
            
                1.60
             |                     
            
                1.60
             |                                 
            
                204,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/27/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.70
             |           
            
                1.70
             |               
            
                1.60
             |                           
            
                1.60
             | 
            
                1.62
             |                     
            
                1.60
             |                                 
            
                136,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2017
             | 
            
                0.00 / 0.00%
             |             
            
                1.60
             |           
            
                1.70
             |               
            
                1.60
             |                           
            
                1.60
             | 
            
                1.60
             |                     
            
                1.60
             |                                 
            
                502,855
             |  
            
                 
             |                                                              
             
    
         
    
    
 |