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            | 
                    Closing price on 7/31/2018
                 |  |  
    
        |           
                
                    | Open | 5.41 |  
                    | High | 5.45 |  
                    | Low | 5.30 |  
                    | Volume | 221,890 |  
                    | Split-adjusted Price | 5.35 |  
                
             | 
 |  QBS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/31/2018 | -0.12 / -2.19% | 5.41 | 5.45 | 5.30 | 5.35 | 5.34 | 5.35 | 221,890 |   |  
            | 7/30/2018 | -0.19 / -3.36% | 5.60 | 5.70 | 5.47 | 5.47 | 5.54 | 5.47 | 459,660 |   |  			
            | 7/27/2018 | -0.13 / -2.25% | 5.95 | 5.95 | 5.57 | 5.66 | 5.69 | 5.66 | 655,160 |   |  
            | 7/26/2018 | +0.11 / +1.94% | 5.66 | 5.88 | 5.64 | 5.79 | 5.72 | 5.79 | 388,230 |   |  			
            | 7/25/2018 | -0.17 / -2.91% | 5.98 | 5.98 | 5.65 | 5.68 | 5.75 | 5.68 | 401,620 |   |  
            | 7/24/2018 | -0.01 / -0.17% | 5.94 | 5.94 | 5.70 | 5.85 | 5.78 | 5.85 | 142,270 |   |  			
            | 7/23/2018 | -0.14 / -2.33% | 5.92 | 6.20 | 5.86 | 5.86 | 5.98 | 5.86 | 307,560 |   |  
            | 7/20/2018 | -0.02 / -0.33% | 5.90 | 6.00 | 5.85 | 6.00 | 5.90 | 6.00 | 374,490 |   |  			
            | 7/19/2018 | -0.20 / -3.22% | 6.25 | 6.25 | 6.02 | 6.02 | 6.11 | 6.02 | 228,060 |   |  
            | 7/18/2018 | 0.00 / 0.00% | 6.38 | 6.38 | 6.10 | 6.22 | 6.22 | 6.22 | 305,750 |   |  			
            | 7/17/2018 | +0.03 / +0.48% | 6.30 | 6.46 | 6.22 | 6.22 | 6.31 | 6.22 | 380,180 |   |  
            | 7/16/2018 | +0.14 / +2.31% | 6.18 | 6.22 | 6.07 | 6.19 | 6.19 | 6.19 | 234,870 |   |  			
            | 7/13/2018 | +0.09 / +1.51% | 5.92 | 6.19 | 5.92 | 6.05 | 6.01 | 6.05 | 348,430 |   |  
            | 7/12/2018 | -0.03 / -0.50% | 6.02 | 6.03 | 5.91 | 5.96 | 5.95 | 5.96 | 330,320 |   |  			
            | 7/11/2018 | +0.01 / +0.17% | 5.94 | 5.99 | 5.84 | 5.99 | 5.94 | 5.99 | 220,800 |   |  
            | 7/10/2018 | +0.02 / +0.34% | 6.00 | 6.00 | 5.90 | 5.98 | 5.97 | 5.98 | 374,490 |   |  			
            | 7/9/2018 | -0.10 / -1.65% | 5.95 | 6.10 | 5.95 | 5.96 | 6.02 | 5.96 | 294,550 |   |  
            | 7/6/2018 | +0.10 / +1.68% | 5.96 | 6.06 | 5.65 | 6.06 | 5.95 | 6.06 | 344,040 |   |  			
            | 7/5/2018 | +0.31 / +5.49% | 5.65 | 6.00 | 5.41 | 5.96 | 5.77 | 5.96 | 471,770 |   |  
            | 7/4/2018 | -0.15 / -2.59% | 5.90 | 5.90 | 5.65 | 5.65 | 5.74 | 5.65 | 153,450 |   |  			
            | 7/3/2018 | -0.42 / -6.75% | 6.28 | 6.28 | 5.80 | 5.80 | 6.08 | 5.80 | 315,700 |   |  
            | 7/2/2018 | -0.08 / -1.27% | 6.35 | 6.38 | 6.06 | 6.22 | 6.19 | 6.22 | 304,590 |   |  			
            | 6/29/2018 | -0.24 / -3.67% | 6.50 | 6.60 | 6.26 | 6.30 | 6.39 | 6.30 | 138,040 |   |  
            | 6/28/2018 | +0.20 / +3.15% | 6.34 | 6.78 | 6.34 | 6.54 | 6.52 | 6.54 | 977,330 |   |  			
            | 6/27/2018 | +0.04 / +0.63% | 6.40 | 6.46 | 6.20 | 6.34 | 6.35 | 6.34 | 344,790 |   |  
            | 6/26/2018 | +0.15 / +2.44% | 6.15 | 6.45 | 6.12 | 6.30 | 6.26 | 6.30 | 376,220 |   |  			
            | 6/25/2018 | 0.00 / 0.00% | 6.58 | 6.58 | 6.15 | 6.15 | 6.22 | 6.15 | 211,900 |   |  
            | 6/22/2018 | +0.35 / +6.03% | 5.92 | 6.15 | 5.89 | 6.15 | 6.02 | 6.15 | 404,730 |   |  			
            | 6/21/2018 | -0.18 / -3.01% | 6.03 | 6.03 | 5.80 | 5.80 | 5.89 | 5.80 | 247,110 |   |  
            | 6/20/2018 | +0.28 / +4.91% | 5.85 | 5.98 | 5.71 | 5.98 | 5.83 | 5.98 | 319,820 |   |  |