| 
    
        
            | 
                    Closing price on 4/15/2020
                 |  |  
    
        |           
                
                    | Open | 1.80 |  
                    | High | 1.85 |  
                    | Low | 1.78 |  
                    | Volume | 24,770 |  
                    | Split-adjusted Price | 1.83 |  
                
             | 
 |  QBS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/15/2020 | -0.02 / -1.08% | 1.80 | 1.85 | 1.78 | 1.83 | 1.82 | 1.83 | 24,770 |   |  
            | 4/14/2020 | -0.03 / -1.60% | 1.89 | 1.89 | 1.79 | 1.85 | 1.81 | 1.85 | 41,880 |   |  			
            | 4/13/2020 | 0.00 / 0.00% | 1.88 | 1.90 | 1.83 | 1.88 | 1.86 | 1.88 | 22,610 |   |  
            | 4/10/2020 | -0.01 / -0.53% | 1.89 | 1.90 | 1.83 | 1.88 | 1.88 | 1.88 | 12,070 |   |  			
            | 4/9/2020 | +0.05 / +2.72% | 1.84 | 1.92 | 1.83 | 1.89 | 1.85 | 1.89 | 96,500 |   |  
            | 4/8/2020 | +0.04 / +2.22% | 1.80 | 1.85 | 1.70 | 1.84 | 1.83 | 1.84 | 36,580 |   |  			
            | 4/7/2020 | -0.02 / -1.10% | 1.82 | 1.82 | 1.75 | 1.80 | 1.78 | 1.80 | 20,210 |   |  
            | 4/6/2020 | +0.05 / +2.82% | 1.86 | 1.86 | 1.77 | 1.82 | 1.83 | 1.82 | 22,420 |   |  			
            | 4/3/2020 | 0.00 / 0.00% | 1.76 | 1.79 | 1.70 | 1.77 | 1.71 | 1.77 | 25,730 |   |  
            | 4/1/2020 | -0.02 / -1.12% | 1.68 | 1.77 | 1.67 | 1.77 | 1.68 | 1.77 | 83,290 |   |  			
            | 3/31/2020 | -0.03 / -1.65% | 1.82 | 1.86 | 1.70 | 1.79 | 1.74 | 1.79 | 92,360 |   |  
            | 3/30/2020 | +0.02 / +1.11% | 1.87 | 1.87 | 1.70 | 1.82 | 1.74 | 1.82 | 17,270 |   |  			
            | 3/27/2020 | -0.12 / -6.25% | 2.04 | 2.04 | 1.79 | 1.80 | 1.83 | 1.80 | 44,230 |   |  
            | 3/26/2020 | -0.13 / -6.34% | 2.00 | 2.13 | 1.91 | 1.92 | 1.93 | 1.92 | 49,680 |   |  			
            | 3/25/2020 | +0.09 / +4.59% | 2.05 | 2.05 | 1.97 | 2.05 | 2.02 | 2.05 | 36,070 |   |  
            | 3/24/2020 | -0.12 / -5.77% | 1.95 | 2.14 | 1.94 | 1.96 | 1.95 | 1.96 | 20,000 |   |  			
            | 3/23/2020 | -0.15 / -6.73% | 2.08 | 2.09 | 2.08 | 2.08 | 2.08 | 2.08 | 59,150 |   |  
            | 3/20/2020 | -0.12 / -5.11% | 2.30 | 2.44 | 2.19 | 2.23 | 2.24 | 2.23 | 57,060 |   |  			
            | 3/19/2020 | -0.14 / -5.62% | 2.33 | 2.59 | 2.33 | 2.35 | 2.38 | 2.35 | 17,640 |   |  
            | 3/18/2020 | +0.04 / +1.63% | 2.45 | 2.55 | 2.34 | 2.49 | 2.37 | 2.49 | 46,450 |   |  			
            | 3/17/2020 | -0.16 / -6.13% | 2.44 | 2.70 | 2.43 | 2.45 | 2.44 | 2.45 | 40,170 |   |  
            | 3/16/2020 | -0.01 / -0.38% | 2.44 | 2.62 | 2.44 | 2.61 | 2.47 | 2.61 | 72,110 |   |  			
            | 3/13/2020 | +0.16 / +6.50% | 2.29 | 2.62 | 2.29 | 2.62 | 2.31 | 2.62 | 210,730 |   |  
            | 3/12/2020 | -0.18 / -6.82% | 2.46 | 2.60 | 2.46 | 2.46 | 2.46 | 2.46 | 72,280 |   |  			
            | 3/11/2020 | -0.19 / -6.71% | 2.92 | 2.92 | 2.64 | 2.64 | 2.78 | 2.64 | 16,720 |   |  
            | 3/10/2020 | +0.15 / +5.60% | 2.55 | 2.85 | 2.55 | 2.83 | 2.67 | 2.83 | 26,190 |   |  			
            | 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 |   |  |