| 
    
        
            | 
                    Closing price on 11/23/2017
                 |  |  
    
        |           
                
                    | Open | 1.50 |  
                    | High | 1.50 |  
                    | Low | 1.30 |  
                    | Volume | 225,900 |  
                    | Split-adjusted Price | 1.40 |  
                
             | 
 |  ACM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  
            | 10/25/2017 | -0.10 / -5.88% | 1.70 | 1.70 | 1.60 | 1.60 | 1.61 | 1.60 | 670,400 |   |  			
            | 10/24/2017 | 0.00 / 0.00% | 1.70 | 1.70 | 1.60 | 1.70 | 1.70 | 1.70 | 111,700 |   |  
            | 10/23/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.60 | 1.70 | 1.70 | 1.70 | 699,900 |   |  			
            | 10/20/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.70 | 1.70 | 1.73 | 1.70 | 371,500 |   |  
            | 10/19/2017 | -0.10 / -5.56% | 1.80 | 1.80 | 1.70 | 1.70 | 1.78 | 1.70 | 76,516 |   |  			
            | 10/18/2017 | 0.00 / 0.00% | 1.80 | 1.90 | 1.70 | 1.80 | 1.80 | 1.80 | 234,900 |   |  
            | 10/17/2017 | 0.00 / 0.00% | 1.80 | 1.90 | 1.70 | 1.80 | 1.80 | 1.80 | 192,754 |   |  			
            | 10/16/2017 | 0.00 / 0.00% | 1.80 | 1.90 | 1.70 | 1.80 | 1.80 | 1.80 | 377,856 |   |  
            | 10/13/2017 | 0.00 / 0.00% | 1.80 | 1.90 | 1.70 | 1.80 | 1.81 | 1.80 | 535,700 |   |  |