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            | 
                    Closing price on 11/1/2018
                 |  |  
    
        |           
                
                    | Open | 4.61 |  
                    | High | 4.66 |  
                    | Low | 4.54 |  
                    | Volume | 211,940 |  
                    | Split-adjusted Price | 4.66 |  
                
             | 
 |  QBS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/1/2018 | +0.05 / +1.08% | 4.61 | 4.66 | 4.54 | 4.66 | 4.59 | 4.66 | 211,940 |   |  
            | 10/31/2018 | -0.04 / -0.86% | 4.74 | 4.74 | 4.61 | 4.61 | 4.66 | 4.61 | 189,180 |   |  			
            | 10/30/2018 | -0.24 / -4.91% | 4.84 | 4.88 | 4.60 | 4.65 | 4.74 | 4.65 | 372,050 |   |  
            | 10/29/2018 | +0.28 / +6.07% | 4.70 | 4.89 | 4.51 | 4.89 | 4.69 | 4.89 | 165,930 |   |  			
            | 10/26/2018 | -0.34 / -6.87% | 4.95 | 5.00 | 4.61 | 4.61 | 4.68 | 4.61 | 534,550 |   |  
            | 10/25/2018 | -0.13 / -2.56% | 4.85 | 4.98 | 4.78 | 4.95 | 4.86 | 4.95 | 384,400 |   |  			
            | 10/24/2018 | +0.03 / +0.59% | 5.00 | 5.19 | 4.97 | 5.08 | 5.04 | 5.08 | 354,960 |   |  
            | 10/23/2018 | -0.37 / -6.83% | 5.05 | 5.26 | 5.05 | 5.05 | 5.05 | 5.05 | 809,410 |   |  			
            | 10/22/2018 | -0.40 / -6.87% | 5.69 | 5.70 | 5.42 | 5.42 | 5.51 | 5.42 | 187,260 |   |  
            | 10/19/2018 | +0.01 / +0.17% | 5.95 | 6.14 | 5.80 | 5.82 | 5.95 | 5.82 | 499,070 |   |  			
            | 10/18/2018 | +0.38 / +7.00% | 5.50 | 5.81 | 5.43 | 5.81 | 5.75 | 5.81 | 722,740 |   |  
            | 10/17/2018 | +0.05 / +0.93% | 5.38 | 5.46 | 5.36 | 5.43 | 5.42 | 5.43 | 433,050 |   |  			
            | 10/16/2018 | +0.29 / +5.70% | 5.25 | 5.38 | 5.08 | 5.38 | 5.19 | 5.38 | 439,690 |   |  
            | 10/15/2018 | -0.10 / -1.93% | 5.46 | 5.46 | 5.09 | 5.09 | 5.18 | 5.09 | 342,690 |   |  			
            | 10/12/2018 | +0.27 / +5.49% | 4.72 | 5.19 | 4.70 | 5.19 | 4.96 | 5.19 | 284,830 |   |  
            | 10/11/2018 | -0.36 / -6.82% | 5.21 | 5.21 | 4.92 | 4.92 | 4.95 | 4.92 | 531,180 |   |  			
            | 10/10/2018 | -0.04 / -0.75% | 5.35 | 5.35 | 5.25 | 5.28 | 5.30 | 5.28 | 232,070 |   |  
            | 10/9/2018 | +0.03 / +0.57% | 5.22 | 5.35 | 5.22 | 5.32 | 5.31 | 5.32 | 273,590 |   |  			
            | 10/8/2018 | -0.02 / -0.38% | 5.30 | 5.33 | 5.19 | 5.29 | 5.25 | 5.29 | 115,480 |   |  
            | 10/5/2018 | -0.11 / -2.03% | 5.42 | 5.42 | 5.31 | 5.31 | 5.38 | 5.31 | 284,900 |   |  			
            | 10/4/2018 | +0.01 / +0.18% | 5.36 | 5.45 | 5.36 | 5.42 | 5.41 | 5.42 | 326,000 |   |  
            | 10/3/2018 | +0.05 / +0.93% | 5.36 | 5.44 | 5.35 | 5.41 | 5.40 | 5.41 | 365,270 |   |  			
            | 10/2/2018 | -0.02 / -0.37% | 5.38 | 5.41 | 5.35 | 5.36 | 5.38 | 5.36 | 144,120 |   |  
            | 10/1/2018 | -0.03 / -0.55% | 5.42 | 5.42 | 5.31 | 5.38 | 5.38 | 5.38 | 311,940 |   |  			
            | 9/28/2018 | 0.00 / 0.00% | 5.41 | 5.46 | 5.37 | 5.41 | 5.41 | 5.41 | 191,190 |   |  
            | 9/27/2018 | +0.17 / +3.24% | 5.33 | 5.45 | 5.20 | 5.41 | 5.29 | 5.41 | 399,350 |   |  			
            | 9/26/2018 | +0.01 / +0.19% | 5.34 | 5.34 | 5.19 | 5.24 | 5.21 | 5.24 | 255,510 |   |  
            | 9/25/2018 | -0.07 / -1.32% | 5.35 | 5.35 | 5.21 | 5.23 | 5.27 | 5.23 | 122,030 |   |  			
            | 9/24/2018 | +0.10 / +1.92% | 5.20 | 5.40 | 5.15 | 5.30 | 5.24 | 5.30 | 391,200 |   |  
            | 9/21/2018 | -0.06 / -1.14% | 5.17 | 5.28 | 5.17 | 5.20 | 5.22 | 5.20 | 223,250 |   |  |