| 
    
        
            | 
                    Closing price on 2/16/2017
                 |  |  
    
        |           
                
                    | Open | 1.80 |  
                    | High | 1.90 |  
                    | Low | 1.80 |  
                    | Volume | 367,600 |  
                    | Split-adjusted Price | 1.80 |  
                
             | 
 |  ACM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/16/2017 | 0.00 / 0.00% | 1.80 | 1.90 | 1.80 | 1.80 | 1.81 | 1.80 | 367,600 |   |  
            | 2/15/2017 | -0.10 / -5.26% | 1.90 | 1.90 | 1.80 | 1.80 | 1.81 | 1.80 | 1,154,000 |   |  			
            | 2/14/2017 | 0.00 / 0.00% | 2.00 | 2.00 | 1.90 | 1.90 | 1.96 | 1.90 | 570,200 |   |  
            | 2/13/2017 | +0.10 / +5.56% | 1.80 | 1.90 | 1.80 | 1.90 | 1.89 | 1.90 | 645,200 |   |  			
            | 2/10/2017 | +0.10 / +5.88% | 1.70 | 1.80 | 1.60 | 1.80 | 1.74 | 1.80 | 3,133,300 |   |  
            | 2/9/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.70 | 1.70 | 1.70 | 1.70 | 548,400 |   |  			
            | 2/8/2017 | -0.10 / -5.56% | 1.80 | 1.80 | 1.70 | 1.70 | 1.72 | 1.70 | 321,100 |   |  
            | 2/7/2017 | +0.10 / +5.88% | 1.70 | 1.80 | 1.70 | 1.80 | 1.70 | 1.80 | 171,800 |   |  			
            | 2/6/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.60 | 1.70 | 1.70 | 1.70 | 579,400 |   |  
            | 2/3/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.70 | 1.70 | 1.70 | 1.70 | 211,700 |   |  			
            | 2/2/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.70 | 1.70 | 1.76 | 1.70 | 102,310 |   |  
            | 1/25/2017 | +0.10 / +6.25% | 1.70 | 1.70 | 1.60 | 1.70 | 1.69 | 1.70 | 375,600 |   |  			
            | 1/24/2017 | 0.00 / 0.00% | 1.60 | 1.70 | 1.60 | 1.60 | 1.66 | 1.60 | 483,000 |   |  
            | 1/23/2017 | -0.10 / -5.88% | 1.70 | 1.70 | 1.60 | 1.60 | 1.62 | 1.60 | 618,800 |   |  			
            | 1/20/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.70 | 1.73 | 1.70 | 138,800 |   |  
            | 1/19/2017 | -0.10 / -5.56% | 1.80 | 1.80 | 1.70 | 1.70 | 1.71 | 1.70 | 213,500 |   |  			
            | 1/18/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.80 | 1.71 | 1.80 | 272,500 |   |  
            | 1/17/2017 | +0.10 / +5.88% | 1.80 | 1.80 | 1.70 | 1.80 | 1.76 | 1.80 | 182,400 |   |  			
            | 1/16/2017 | -0.10 / -5.56% | 1.80 | 1.80 | 1.70 | 1.70 | 1.71 | 1.70 | 590,800 |   |  
            | 1/13/2017 | 0.00 / 0.00% | 1.80 | 1.90 | 1.80 | 1.80 | 1.80 | 1.80 | 253,200 |   |  			
            | 1/12/2017 | 0.00 / 0.00% | 1.80 | 1.90 | 1.80 | 1.80 | 1.80 | 1.80 | 424,400 |   |  
            | 1/11/2017 | -0.10 / -5.26% | 1.90 | 1.90 | 1.80 | 1.80 | 1.82 | 1.80 | 78,200 |   |  			
            | 1/10/2017 | +0.10 / +5.56% | 1.80 | 1.90 | 1.80 | 1.90 | 1.82 | 1.90 | 116,100 |   |  
            | 1/9/2017 | 0.00 / 0.00% | 1.80 | 1.90 | 1.80 | 1.80 | 1.80 | 1.80 | 434,400 |   |  			
            | 1/6/2017 | -0.10 / -5.26% | 1.90 | 1.90 | 1.80 | 1.80 | 1.82 | 1.80 | 302,200 |   |  
            | 1/5/2017 | 0.00 / 0.00% | 1.90 | 1.90 | 1.80 | 1.90 | 1.86 | 1.90 | 108,600 |   |  			
            | 1/4/2017 | -0.10 / -5.00% | 2.00 | 2.00 | 1.90 | 1.90 | 1.90 | 1.90 | 289,100 |   |  
            | 1/3/2017 | +0.10 / +5.26% | 2.00 | 2.00 | 1.90 | 2.00 | 1.90 | 2.00 | 164,513 |   |  			
            | 12/30/2016 | 0.00 / 0.00% | 1.90 | 2.00 | 1.90 | 1.90 | 1.91 | 1.90 | 174,140 |   |  
            | 12/29/2016 | 0.00 / 0.00% | 1.90 | 2.00 | 1.90 | 1.90 | 1.90 | 1.90 | 229,400 |   |  |