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                    Closing price on 6/15/2018
                 |  |  
    
        |           
                
                    | Open | 6.20 |  
                    | High | 6.20 |  
                    | Low | 6.15 |  
                    | Volume | 272,320 |  
                    | Split-adjusted Price | 6.15 |  
                
             | 
 |  QBS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/15/2018 | -0.02 / -0.32% | 6.20 | 6.20 | 6.15 | 6.15 | 6.17 | 6.15 | 272,320 |   |  
            | 6/14/2018 | +0.03 / +0.49% | 6.14 | 6.25 | 6.12 | 6.17 | 6.17 | 6.17 | 167,700 |   |  			
            | 6/13/2018 | 0.00 / 0.00% | 5.94 | 6.14 | 5.94 | 6.14 | 6.08 | 6.14 | 208,840 |   |  
            | 6/12/2018 | -0.14 / -2.23% | 6.21 | 6.21 | 5.98 | 6.14 | 6.06 | 6.14 | 373,020 |   |  			
            | 6/11/2018 | +0.18 / +2.95% | 6.10 | 6.33 | 6.00 | 6.28 | 6.19 | 6.28 | 318,700 |   |  
            | 6/8/2018 | +0.16 / +2.69% | 5.88 | 6.18 | 5.88 | 6.10 | 6.04 | 6.10 | 464,530 |   |  			
            | 6/7/2018 | +0.05 / +0.85% | 5.89 | 5.98 | 5.89 | 5.94 | 5.92 | 5.94 | 231,770 |   |  
            | 6/6/2018 | -0.04 / -0.67% | 5.75 | 5.89 | 5.67 | 5.89 | 5.79 | 5.89 | 119,870 |   |  			
            | 6/5/2018 | -0.04 / -0.67% | 5.73 | 5.93 | 5.68 | 5.93 | 5.81 | 5.93 | 203,020 |   |  
            | 6/4/2018 | +0.09 / +1.53% | 5.50 | 5.99 | 5.50 | 5.97 | 5.92 | 5.97 | 276,270 |   |  			
            | 6/1/2018 | +0.38 / +6.91% | 5.50 | 5.88 | 5.47 | 5.88 | 5.78 | 5.88 | 428,500 |   |  
            | 5/31/2018 | +0.01 / +0.18% | 5.49 | 5.50 | 5.45 | 5.50 | 5.48 | 5.50 | 167,640 |   |  			
            | 5/30/2018 | +0.01 / +0.18% | 5.50 | 5.50 | 5.30 | 5.49 | 5.45 | 5.49 | 43,630 |   |  
            | 5/29/2018 | +0.17 / +3.20% | 5.00 | 5.50 | 5.00 | 5.48 | 5.30 | 5.48 | 99,520 |   |  			
            | 5/28/2018 | -0.39 / -6.84% | 5.70 | 5.70 | 5.31 | 5.31 | 5.38 | 5.31 | 322,650 |   |  
            | 5/25/2018 | -0.15 / -2.56% | 5.80 | 5.90 | 5.70 | 5.70 | 5.80 | 5.70 | 185,450 |   |  			
            | 5/24/2018 | -0.25 / -4.10% | 6.18 | 6.18 | 5.80 | 5.85 | 5.96 | 5.85 | 325,860 |   |  
            | 5/23/2018 | 0.00 / 0.00% | 5.88 | 6.17 | 5.70 | 6.10 | 6.06 | 6.10 | 226,930 |   |  			
            | 5/22/2018 | -0.20 / -3.17% | 6.15 | 6.29 | 5.87 | 6.10 | 6.06 | 6.10 | 195,660 |   |  
            | 5/21/2018 | 0.00 / 0.00% | 6.30 | 6.34 | 6.22 | 6.30 | 6.30 | 6.30 | 293,120 |   |  			
            | 5/18/2018 | 0.00 / 0.00% | 6.15 | 6.35 | 6.02 | 6.30 | 6.25 | 6.30 | 267,090 |   |  
            | 5/17/2018 | +0.38 / +6.42% | 5.85 | 6.33 | 5.85 | 6.30 | 6.25 | 6.30 | 513,740 |   |  			
            | 5/16/2018 | +0.07 / +1.20% | 5.80 | 6.00 | 5.72 | 5.92 | 5.88 | 5.92 | 343,700 |   |  
            | 5/15/2018 | +0.27 / +4.84% | 5.60 | 5.97 | 5.60 | 5.85 | 5.83 | 5.85 | 103,250 |   |  			
            | 5/14/2018 | +0.02 / +0.36% | 5.75 | 5.75 | 5.50 | 5.58 | 5.58 | 5.58 | 85,470 |   |  
            | 5/11/2018 | 0.00 / 0.00% | 5.32 | 5.58 | 5.32 | 5.56 | 5.52 | 5.56 | 72,470 |   |  			
            | 5/10/2018 | 0.00 / 0.00% | 5.58 | 5.59 | 5.50 | 5.56 | 5.57 | 5.56 | 174,610 |   |  
            | 5/9/2018 | -0.02 / -0.36% | 5.32 | 5.60 | 5.32 | 5.56 | 5.47 | 5.56 | 200,950 |   |  			
            | 5/8/2018 | +0.03 / +0.54% | 5.60 | 5.60 | 5.20 | 5.58 | 5.35 | 5.58 | 121,590 |   |  
            | 5/7/2018 | +0.15 / +2.78% | 5.59 | 5.59 | 5.16 | 5.55 | 5.40 | 5.55 | 18,530 |   |  |