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            | 
                    Closing price on 7/23/2018
                 |  |  
    
        |           
                
                    | Open | 26.00 |  
                    | High | 26.95 |  
                    | Low | 26.00 |  
                    | Volume | 344,980 |  
                    | Split-adjusted Price | 15.49 |  
                
             | 
 |  NT2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/23/2018 | +0.95 / +3.65% | 26.00 | 26.95 | 26.00 | 26.95 | 26.41 | 15.49 | 344,980 |   |  
            | 7/20/2018 | -0.65 / -2.44% | 26.65 | 26.65 | 26.00 | 26.00 | 26.24 | 14.94 | 404,320 |   |  			
            | 7/19/2018 | -0.15 / -0.56% | 26.80 | 27.20 | 26.50 | 26.65 | 26.68 | 15.32 | 1,764,609 |   |  
            | 7/18/2018 | +0.45 / +1.71% | 26.25 | 27.10 | 26.20 | 26.80 | 26.63 | 15.40 | 293,940 |   |  			
            | 7/17/2018 | -0.15 / -0.57% | 26.50 | 26.50 | 26.20 | 26.35 | 26.39 | 15.15 | 215,290 |   |  
            | 7/16/2018 | +0.15 / +0.57% | 26.30 | 26.50 | 26.00 | 26.50 | 26.23 | 15.23 | 189,900 |   |  			
            | 7/13/2018 | -3.45 / -11.58% | 27.00 | 27.25 | 26.30 | 26.35 | 26.64 | 15.15 | 353,600 |   |  
            | 7/12/2018 | -0.40 / -1.32% | 30.20 | 30.20 | 29.60 | 29.80 | 29.92 | 15.52 | 791,450 |   |  			
            | 7/11/2018 | -0.10 / -0.33% | 30.30 | 30.30 | 30.00 | 30.20 | 30.19 | 15.73 | 397,030 |   |  
            | 7/10/2018 | +0.40 / +1.34% | 29.95 | 30.35 | 29.80 | 30.30 | 30.10 | 15.78 | 965,140 |   |  			
            | 7/9/2018 | +0.30 / +1.01% | 30.00 | 30.20 | 29.80 | 29.90 | 29.93 | 15.58 | 234,860 |   |  
            | 7/6/2018 | +0.20 / +0.68% | 29.50 | 29.70 | 29.30 | 29.60 | 29.53 | 15.42 | 204,920 |   |  			
            | 7/5/2018 | -0.90 / -2.97% | 30.00 | 30.10 | 29.40 | 29.40 | 29.73 | 15.32 | 512,890 |   |  
            | 7/4/2018 | +1.40 / +4.84% | 29.15 | 30.30 | 28.90 | 30.30 | 29.49 | 15.78 | 263,010 |   |  			
            | 7/3/2018 | -0.20 / -0.69% | 29.20 | 29.20 | 28.60 | 28.90 | 28.87 | 15.05 | 679,010 |   |  
            | 7/2/2018 | 0.00 / 0.00% | 29.20 | 29.25 | 28.50 | 29.10 | 28.98 | 15.16 | 275,120 |   |  			
            | 6/29/2018 | -0.20 / -0.68% | 29.10 | 29.40 | 28.95 | 29.10 | 29.04 | 15.16 | 358,000 |   |  
            | 6/28/2018 | -0.35 / -1.18% | 29.50 | 29.60 | 29.00 | 29.30 | 29.27 | 15.26 | 180,550 |   |  			
            | 6/27/2018 | 0.00 / 0.00% | 29.55 | 29.80 | 29.40 | 29.65 | 29.72 | 15.45 | 259,940 |   |  
            | 6/26/2018 | -0.15 / -0.50% | 29.80 | 29.80 | 29.25 | 29.65 | 29.54 | 15.45 | 95,400 |   |  			
            | 6/25/2018 | +0.20 / +0.68% | 29.65 | 30.15 | 29.65 | 29.80 | 29.89 | 15.52 | 232,690 |   |  
            | 6/22/2018 | +0.30 / +1.02% | 29.40 | 29.80 | 29.35 | 29.60 | 29.53 | 15.42 | 241,060 |   |  			
            | 6/21/2018 | 0.00 / 0.00% | 29.30 | 29.60 | 29.10 | 29.30 | 29.29 | 15.26 | 114,690 |   |  
            | 6/20/2018 | +0.10 / +0.34% | 29.20 | 29.50 | 28.90 | 29.30 | 29.25 | 15.26 | 124,780 |   |  			
            | 6/19/2018 | -0.20 / -0.68% | 29.40 | 29.80 | 28.35 | 29.20 | 29.02 | 15.21 | 466,320 |   |  
            | 6/18/2018 | -0.50 / -1.67% | 30.00 | 30.30 | 29.40 | 29.40 | 29.84 | 15.32 | 326,380 |   |  			
            | 6/15/2018 | +0.70 / +2.40% | 29.40 | 30.00 | 29.40 | 29.90 | 29.84 | 15.58 | 347,820 |   |  
            | 6/14/2018 | +0.20 / +0.69% | 29.05 | 29.30 | 29.00 | 29.20 | 29.06 | 15.21 | 295,150 |   |  			
            | 6/13/2018 | -0.10 / -0.34% | 29.10 | 29.10 | 29.00 | 29.00 | 29.01 | 15.11 | 123,580 |   |  
            | 6/12/2018 | -0.05 / -0.17% | 29.00 | 29.15 | 28.80 | 29.10 | 29.00 | 15.16 | 314,390 |   |  |