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            | 
                    Closing price on 4/27/2018
                 |  |  
    
        |           
                
                    | Open | 5.30 |  
                    | High | 5.79 |  
                    | Low | 5.10 |  
                    | Volume | 260,530 |  
                    | Split-adjusted Price | 5.70 |  
                
             | 
 |  QBS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/27/2018 | +0.26 / +4.78% | 5.30 | 5.79 | 5.10 | 5.70 | 5.45 | 5.70 | 260,530 |   |  
            | 4/26/2018 | -0.23 / -4.06% | 5.67 | 5.67 | 5.28 | 5.44 | 5.44 | 5.44 | 170,310 |   |  			
            | 4/24/2018 | -0.20 / -3.41% | 5.70 | 5.70 | 5.46 | 5.67 | 5.56 | 5.67 | 76,230 |   |  
            | 4/23/2018 | -0.03 / -0.51% | 5.90 | 5.98 | 5.60 | 5.87 | 5.83 | 5.87 | 149,830 |   |  			
            | 4/20/2018 | -0.10 / -1.67% | 6.00 | 6.00 | 5.80 | 5.90 | 5.94 | 5.90 | 11,950 |   |  
            | 4/19/2018 | -0.08 / -1.32% | 6.08 | 6.08 | 5.80 | 6.00 | 5.92 | 6.00 | 49,140 |   |  			
            | 4/18/2018 | +0.08 / +1.33% | 6.15 | 6.15 | 5.95 | 6.08 | 6.00 | 6.08 | 125,580 |   |  
            | 4/17/2018 | +0.03 / +0.50% | 6.09 | 6.09 | 5.95 | 6.00 | 6.01 | 6.00 | 39,590 |   |  			
            | 4/16/2018 | -0.12 / -1.97% | 5.90 | 5.98 | 5.81 | 5.97 | 5.94 | 5.97 | 186,990 |   |  
            | 4/13/2018 | +0.19 / +3.22% | 5.90 | 6.13 | 5.80 | 6.09 | 5.93 | 6.09 | 62,920 |   |  			
            | 4/12/2018 | 0.00 / 0.00% | 6.20 | 6.20 | 5.75 | 5.90 | 5.87 | 5.90 | 19,590 |   |  
            | 4/11/2018 | -0.25 / -4.07% | 6.00 | 6.10 | 5.90 | 5.90 | 5.94 | 5.90 | 73,190 |   |  			
            | 4/10/2018 | -0.05 / -0.81% | 6.19 | 6.28 | 5.95 | 6.15 | 6.13 | 6.15 | 135,030 |   |  
            | 4/9/2018 | -0.10 / -1.59% | 6.49 | 6.49 | 6.20 | 6.20 | 6.30 | 6.20 | 198,570 |   |  			
            | 4/6/2018 | +0.24 / +3.96% | 6.10 | 6.46 | 6.10 | 6.30 | 6.31 | 6.30 | 249,270 |   |  
            | 4/5/2018 | +0.22 / +3.77% | 5.95 | 6.06 | 5.80 | 6.06 | 5.95 | 6.06 | 124,120 |   |  			
            | 4/4/2018 | 0.00 / 0.00% | 5.84 | 5.95 | 5.60 | 5.84 | 5.69 | 5.84 | 81,500 |   |  
            | 4/3/2018 | +0.04 / +0.69% | 5.80 | 5.85 | 5.51 | 5.84 | 5.68 | 5.84 | 28,530 |   |  			
            | 4/2/2018 | -0.10 / -1.69% | 6.05 | 6.05 | 5.80 | 5.80 | 5.83 | 5.80 | 35,310 |   |  
            | 3/30/2018 | 0.00 / 0.00% | 5.72 | 6.00 | 5.72 | 5.90 | 5.90 | 5.90 | 25,930 |   |  			
            | 3/29/2018 | -0.30 / -4.84% | 6.00 | 6.10 | 5.90 | 5.90 | 6.02 | 5.90 | 16,930 |   |  
            | 3/28/2018 | -0.03 / -0.48% | 6.23 | 6.30 | 5.90 | 6.20 | 6.01 | 6.20 | 9,740 |   |  			
            | 3/27/2018 | +0.03 / +0.48% | 6.20 | 6.35 | 5.90 | 6.23 | 5.99 | 6.23 | 10,510 |   |  
            | 3/26/2018 | +0.20 / +3.33% | 6.00 | 6.20 | 5.58 | 6.20 | 5.89 | 6.20 | 53,340 |   |  			
            | 3/23/2018 | -0.05 / -0.83% | 6.03 | 6.03 | 5.90 | 6.00 | 5.95 | 6.00 | 129,160 |   |  
            | 3/22/2018 | -0.22 / -3.51% | 6.27 | 6.27 | 6.05 | 6.05 | 6.11 | 6.05 | 63,650 |   |  			
            | 3/21/2018 | -0.08 / -1.26% | 6.28 | 6.35 | 6.12 | 6.27 | 6.18 | 6.27 | 102,620 |   |  
            | 3/20/2018 | -0.05 / -0.78% | 6.38 | 6.38 | 6.22 | 6.35 | 6.30 | 6.35 | 92,370 |   |  			
            | 3/19/2018 | 0.00 / 0.00% | 6.39 | 6.40 | 6.21 | 6.40 | 6.33 | 6.40 | 294,810 |   |  
            | 3/16/2018 | +0.01 / +0.16% | 6.31 | 6.50 | 6.20 | 6.40 | 6.36 | 6.40 | 251,540 |   |  |