| 
    
        
            | 
                    Closing price on 5/11/2017
                 |  |  
    
        |           
                
                    | Open | 1.70 |  
                    | High | 1.70 |  
                    | Low | 1.60 |  
                    | Volume | 115,534 |  
                    | Split-adjusted Price | 1.60 |  
                
             | 
 |  ACM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/11/2017 | -0.10 / -5.88% | 1.70 | 1.70 | 1.60 | 1.60 | 1.62 | 1.60 | 115,534 |   |  
            | 5/10/2017 | +0.10 / +6.25% | 1.70 | 1.70 | 1.60 | 1.70 | 1.70 | 1.70 | 274,966 |   |  			
            | 5/9/2017 | 0.00 / 0.00% | 1.60 | 1.70 | 1.60 | 1.60 | 1.61 | 1.60 | 299,900 |   |  
            | 5/8/2017 | -0.10 / -5.88% | 1.70 | 1.70 | 1.60 | 1.60 | 1.63 | 1.60 | 42,613 |   |  			
            | 5/5/2017 | +0.10 / +6.25% | 1.60 | 1.70 | 1.60 | 1.70 | 1.60 | 1.70 | 576,320 |   |  
            | 5/4/2017 | -0.10 / -5.88% | 1.70 | 1.70 | 1.60 | 1.60 | 1.68 | 1.60 | 93,000 |   |  			
            | 5/3/2017 | 0.00 / 0.00% | 1.70 | 1.70 | 1.60 | 1.70 | 1.70 | 1.70 | 220,710 |   |  
            | 4/28/2017 | 0.00 / 0.00% | 1.70 | 1.70 | 1.60 | 1.70 | 1.70 | 1.70 | 1,070,736 |   |  			
            | 4/27/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.60 | 1.70 | 1.70 | 1.70 | 315,608 |   |  
            | 4/26/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.70 | 1.70 | 1.70 | 1.70 | 116,802 |   |  			
            | 4/25/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.70 | 1.71 | 1.70 | 118,000 |   |  
            | 4/24/2017 | -0.10 / -5.56% | 1.80 | 1.80 | 1.70 | 1.70 | 1.72 | 1.70 | 324,510 |   |  			
            | 4/21/2017 | +0.10 / +5.88% | 1.70 | 1.80 | 1.60 | 1.80 | 1.70 | 1.80 | 238,963 |   |  
            | 4/20/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.60 | 1.70 | 1.70 | 1.70 | 147,507 |   |  			
            | 4/19/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.70 | 1.70 | 1.70 | 169,630 |   |  
            | 4/18/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.60 | 1.70 | 1.70 | 1.70 | 291,820 |   |  			
            | 4/17/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.70 | 1.70 | 1.70 | 1.70 | 615,150 |   |  
            | 4/14/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.60 | 1.70 | 1.70 | 1.70 | 479,600 |   |  			
            | 4/13/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.70 | 1.75 | 1.70 | 733,300 |   |  
            | 4/12/2017 | -0.10 / -5.56% | 1.70 | 1.80 | 1.70 | 1.70 | 1.70 | 1.70 | 617,313 |   |  			
            | 4/11/2017 | +0.10 / +5.88% | 1.70 | 1.80 | 1.70 | 1.80 | 1.70 | 1.80 | 396,100 |   |  
            | 4/10/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.70 | 1.79 | 1.70 | 234,600 |   |  			
            | 4/7/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.70 | 1.70 | 1.70 | 1.70 | 502,517 |   |  
            | 4/5/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.60 | 1.70 | 1.70 | 1.70 | 1,241,910 |   |  			
            | 4/4/2017 | -0.10 / -5.56% | 1.80 | 1.80 | 1.70 | 1.70 | 1.70 | 1.70 | 410,811 |   |  
            | 4/3/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.80 | 1.71 | 1.80 | 381,817 |   |  			
            | 3/31/2017 | +0.10 / +5.88% | 1.80 | 1.80 | 1.70 | 1.80 | 1.72 | 1.80 | 58,464 |   |  
            | 3/30/2017 | -0.10 / -5.56% | 1.80 | 1.80 | 1.70 | 1.70 | 1.80 | 1.70 | 253,011 |   |  			
            | 3/29/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.80 | 1.78 | 1.80 | 119,000 |   |  
            | 3/28/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.80 | 1.77 | 1.80 | 174,890 |   |  |