| 
    
        
            | 
                    Closing price on 3/8/2018
                 |  |  
    
        |           
                
                    | Open | 31.60 |  
                    | High | 31.60 |  
                    | Low | 30.30 |  
                    | Volume | 684,380 |  
                    | Split-adjusted Price | 14.79 |  
                
             | 
 |  NT2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/8/2018 | -0.80 / -2.57% | 31.60 | 31.60 | 30.30 | 30.30 | 30.79 | 14.79 | 684,380 |   |  
            | 3/7/2018 | +0.10 / +0.32% | 30.90 | 31.50 | 30.90 | 31.10 | 31.07 | 15.18 | 422,340 |   |  			
            | 3/6/2018 | -0.50 / -1.59% | 31.65 | 31.65 | 30.50 | 31.00 | 30.87 | 15.13 | 240,480 |   |  
            | 3/5/2018 | 0.00 / 0.00% | 31.90 | 31.90 | 31.00 | 31.50 | 31.22 | 15.37 | 238,410 |   |  			
            | 3/2/2018 | 0.00 / 0.00% | 32.00 | 32.00 | 31.10 | 31.50 | 31.45 | 15.37 | 193,420 |   |  
            | 3/1/2018 | -0.20 / -0.63% | 31.60 | 32.00 | 31.10 | 31.50 | 31.50 | 15.37 | 600,670 |   |  			
            | 2/28/2018 | -0.30 / -0.94% | 31.50 | 32.50 | 31.50 | 31.70 | 31.89 | 15.47 | 394,180 |   |  
            | 2/27/2018 | -1.50 / -4.48% | 33.00 | 33.50 | 31.80 | 32.00 | 32.23 | 15.62 | 562,990 |   |  			
            | 2/26/2018 | -0.40 / -1.18% | 34.90 | 34.90 | 33.50 | 33.50 | 33.72 | 16.35 | 382,690 |   |  
            | 2/23/2018 | +0.90 / +2.73% | 33.30 | 34.10 | 33.30 | 33.90 | 33.79 | 16.55 | 397,580 |   |  			
            | 2/22/2018 | +1.20 / +3.77% | 31.05 | 33.90 | 31.05 | 33.00 | 33.24 | 16.11 | 402,440 |   |  
            | 2/21/2018 | -0.20 / -0.63% | 32.20 | 32.20 | 31.70 | 31.80 | 31.86 | 15.52 | 105,190 |   |  			
            | 2/13/2018 | +1.00 / +3.23% | 31.90 | 32.50 | 31.00 | 32.00 | 31.33 | 15.62 | 111,540 |   |  
            | 2/12/2018 | 0.00 / 0.00% | 31.00 | 32.50 | 31.00 | 31.00 | 31.65 | 15.13 | 206,140 |   |  			
            | 2/9/2018 | -1.00 / -3.13% | 31.10 | 32.00 | 30.00 | 31.00 | 30.63 | 15.13 | 263,780 |   |  
            | 2/8/2018 | -1.00 / -3.03% | 32.90 | 33.45 | 31.70 | 32.00 | 32.31 | 15.62 | 153,730 |   |  			
            | 2/7/2018 | 0.00 / 0.00% | 33.50 | 33.50 | 32.85 | 33.00 | 32.99 | 16.11 | 144,820 |   |  
            | 2/6/2018 | -0.30 / -0.90% | 33.30 | 33.30 | 31.10 | 33.00 | 32.48 | 16.11 | 222,270 |   |  			
            | 2/5/2018 | -0.15 / -0.45% | 33.45 | 33.60 | 32.90 | 33.30 | 33.30 | 16.25 | 292,720 |   |  
            | 2/2/2018 | +0.45 / +1.36% | 33.50 | 33.70 | 33.10 | 33.45 | 33.36 | 16.33 | 242,400 |   |  			
            | 2/1/2018 | -0.10 / -0.30% | 33.00 | 33.55 | 33.00 | 33.00 | 33.04 | 16.11 | 339,560 |   |  
            | 1/31/2018 | -0.90 / -2.65% | 33.00 | 33.80 | 33.00 | 33.10 | 33.06 | 16.15 | 193,630 |   |  			
            | 1/30/2018 | +1.50 / +4.62% | 32.50 | 34.00 | 32.50 | 34.00 | 33.55 | 16.59 | 241,160 |   |  
            | 1/29/2018 | -2.00 / -5.80% | 33.60 | 35.20 | 32.50 | 32.50 | 33.14 | 15.86 | 383,020 |   |  			
            | 1/26/2018 | +1.70 / +5.18% | 32.30 | 35.00 | 32.30 | 34.50 | 34.20 | 16.84 | 140,810 |   |  
            | 1/25/2018 | -2.15 / -6.15% | 34.55 | 34.80 | 32.80 | 32.80 | 33.21 | 16.01 | 504,340 |   |  			
            | 1/22/2018 | -0.85 / -2.37% | 35.80 | 35.80 | 34.10 | 34.95 | 34.67 | 17.06 | 138,890 |   |  
            | 1/19/2018 | 0.00 / 0.00% | 35.80 | 36.20 | 35.30 | 35.80 | 35.80 | 17.47 | 324,960 |   |  			
            | 1/18/2018 | +0.20 / +0.56% | 35.60 | 35.80 | 34.85 | 35.80 | 35.07 | 17.47 | 300,280 |   |  
            | 1/17/2018 | -0.60 / -1.66% | 36.20 | 36.20 | 34.90 | 35.60 | 35.30 | 17.38 | 822,660 |   |  |