| 
    
        
            | 
                    Closing price on 6/1/2017
                 |  |  
    
        |           
                
                    | Open | 1.80 |  
                    | High | 1.80 |  
                    | Low | 1.70 |  
                    | Volume | 1,176,311 |  
                    | Split-adjusted Price | 1.80 |  
                
             | 
 |  ACM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/1/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.80 | 1.71 | 1.80 | 1,176,311 |   |  
            | 5/31/2017 | 0.00 / 0.00% | 1.70 | 1.80 | 1.70 | 1.80 | 1.77 | 1.80 | 108,410 |   |  			
            | 5/30/2017 | -0.10 / -5.26% | 1.80 | 1.90 | 1.80 | 1.80 | 1.81 | 1.80 | 1,003,100 |   |  
            | 5/29/2017 | +0.10 / +5.56% | 1.80 | 1.90 | 1.70 | 1.90 | 1.81 | 1.90 | 1,914,300 |   |  			
            | 5/26/2017 | +0.10 / +5.88% | 1.70 | 1.80 | 1.70 | 1.80 | 1.73 | 1.80 | 255,800 |   |  
            | 5/25/2017 | -0.10 / -5.56% | 1.70 | 1.80 | 1.70 | 1.70 | 1.70 | 1.70 | 331,520 |   |  			
            | 5/24/2017 | 0.00 / 0.00% | 1.80 | 1.80 | 1.70 | 1.80 | 1.72 | 1.80 | 132,320 |   |  
            | 5/23/2017 | +0.10 / +5.88% | 1.70 | 1.80 | 1.70 | 1.80 | 1.71 | 1.80 | 330,200 |   |  			
            | 5/22/2017 | -0.10 / -5.56% | 1.80 | 1.80 | 1.70 | 1.70 | 1.72 | 1.70 | 1,271,711 |   |  
            | 5/19/2017 | +0.10 / +5.88% | 1.80 | 1.80 | 1.70 | 1.80 | 1.72 | 1.80 | 1,247,220 |   |  			
            | 5/18/2017 | -0.10 / -5.56% | 1.80 | 1.80 | 1.70 | 1.70 | 1.74 | 1.70 | 238,505 |   |  
            | 5/17/2017 | +0.10 / +5.88% | 1.80 | 1.80 | 1.70 | 1.80 | 1.80 | 1.80 | 1,649,700 |   |  			
            | 5/16/2017 | +0.10 / +6.25% | 1.70 | 1.70 | 1.60 | 1.70 | 1.70 | 1.70 | 1,783,410 |   |  
            | 5/15/2017 | 0.00 / 0.00% | 1.60 | 1.70 | 1.60 | 1.60 | 1.61 | 1.60 | 282,600 |   |  			
            | 5/12/2017 | 0.00 / 0.00% | 1.60 | 1.70 | 1.60 | 1.60 | 1.61 | 1.60 | 161,610 |   |  
            | 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 |   |  |