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                    Closing price on 3/9/2020
                 |  |  
    
        |           
                
                    | Open | 2.70 |  
                    | High | 2.80 |  
                    | Low | 2.68 |  
                    | Volume | 89,290 |  
                    | Split-adjusted Price | 2.68 |  
                
             | 
 |  QBS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/9/2020 | -0.20 / -6.94% | 2.70 | 2.80 | 2.68 | 2.68 | 2.69 | 2.68 | 89,290 |   |  
            | 3/6/2020 | +0.18 / +6.67% | 2.88 | 2.88 | 2.80 | 2.88 | 2.88 | 2.88 | 223,830 |   |  			
            | 3/5/2020 | +0.17 / +6.72% | 2.70 | 2.70 | 2.70 | 2.70 | 2.70 | 2.70 | 96,190 |   |  
            | 3/4/2020 | +0.16 / +6.75% | 2.37 | 2.53 | 2.37 | 2.53 | 2.48 | 2.53 | 101,710 |   |  			
            | 3/3/2020 | +0.04 / +1.72% | 2.35 | 2.44 | 2.35 | 2.37 | 2.38 | 2.37 | 36,190 |   |  
            | 3/2/2020 | -0.01 / -0.43% | 2.34 | 2.38 | 2.30 | 2.33 | 2.31 | 2.33 | 68,410 |   |  			
            | 2/28/2020 | 0.00 / 0.00% | 2.42 | 2.42 | 2.24 | 2.34 | 2.29 | 2.34 | 24,450 |   |  
            | 2/27/2020 | +0.01 / +0.43% | 2.46 | 2.46 | 2.30 | 2.34 | 2.31 | 2.34 | 31,140 |   |  			
            | 2/26/2020 | +0.03 / +1.30% | 2.33 | 2.44 | 2.30 | 2.33 | 2.35 | 2.33 | 13,950 |   |  
            | 2/25/2020 | 0.00 / 0.00% | 2.30 | 2.44 | 2.30 | 2.30 | 2.31 | 2.30 | 38,990 |   |  			
            | 2/24/2020 | 0.00 / 0.00% | 2.30 | 2.33 | 2.30 | 2.30 | 2.31 | 2.30 | 21,000 |   |  
            | 2/21/2020 | 0.00 / 0.00% | 2.31 | 2.34 | 2.29 | 2.30 | 2.30 | 2.30 | 13,940 |   |  			
            | 2/20/2020 | +0.01 / +0.44% | 2.33 | 2.36 | 2.30 | 2.30 | 2.31 | 2.30 | 7,800 |   |  
            | 2/19/2020 | -0.02 / -0.87% | 2.27 | 2.35 | 2.25 | 2.29 | 2.29 | 2.29 | 4,140 |   |  			
            | 2/18/2020 | -0.09 / -3.75% | 2.35 | 2.38 | 2.30 | 2.31 | 2.34 | 2.31 | 14,830 |   |  
            | 2/17/2020 | -0.03 / -1.23% | 2.40 | 2.42 | 2.34 | 2.40 | 2.36 | 2.40 | 27,120 |   |  			
            | 2/14/2020 | 0.00 / 0.00% | 2.41 | 2.43 | 2.40 | 2.43 | 2.40 | 2.43 | 4,580 |   |  
            | 2/13/2020 | -0.01 / -0.41% | 2.44 | 2.44 | 2.38 | 2.43 | 2.42 | 2.43 | 1,720 |   |  			
            | 2/12/2020 | +0.04 / +1.67% | 2.39 | 2.44 | 2.34 | 2.44 | 2.40 | 2.44 | 10,200 |   |  
            | 2/11/2020 | +0.03 / +1.27% | 2.45 | 2.47 | 2.37 | 2.40 | 2.39 | 2.40 | 9,210 |   |  			
            | 2/10/2020 | -0.13 / -5.20% | 2.53 | 2.53 | 2.35 | 2.37 | 2.43 | 2.37 | 13,170 |   |  
            | 2/7/2020 | +0.04 / +1.63% | 2.40 | 2.55 | 2.40 | 2.50 | 2.49 | 2.50 | 5,620 |   |  			
            | 2/6/2020 | -0.11 / -4.28% | 2.61 | 2.61 | 2.42 | 2.46 | 2.45 | 2.46 | 74,430 |   |  
            | 2/5/2020 | +0.02 / +0.78% | 2.43 | 2.59 | 2.41 | 2.57 | 2.46 | 2.57 | 5,700 |   |  			
            | 2/4/2020 | -0.01 / -0.39% | 2.59 | 2.59 | 2.40 | 2.55 | 2.48 | 2.55 | 12,520 |   |  
            | 2/3/2020 | -0.04 / -1.54% | 2.45 | 2.56 | 2.42 | 2.56 | 2.47 | 2.56 | 42,170 |   |  			
            | 1/31/2020 | -0.06 / -2.26% | 2.66 | 2.66 | 2.48 | 2.60 | 2.55 | 2.60 | 16,480 |   |  
            | 1/30/2020 | +0.06 / +2.31% | 2.60 | 2.66 | 2.60 | 2.66 | 2.62 | 2.66 | 16,050 |   |  			
            | 1/22/2020 | +0.04 / +1.56% | 2.54 | 2.67 | 2.50 | 2.60 | 2.55 | 2.60 | 41,530 |   |  
            | 1/21/2020 | -0.14 / -5.19% | 2.57 | 2.69 | 2.56 | 2.56 | 2.56 | 2.56 | 15,990 |   |  |