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                    Closing price on 10/10/2022
                 |  |  
    
        |           
                
                    | Open | 2.41 |  
                    | High | 2.65 |  
                    | Low | 2.39 |  
                    | Volume | 427,700 |  
                    | Split-adjusted Price | 2.50 |  
                
             | 
 |  QBS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/10/2022 | -0.06 / -2.34% | 2.41 | 2.65 | 2.39 | 2.50 | 2.49 | 2.50 | 427,700 |   |  
            | 10/7/2022 | -0.19 / -6.91% | 2.58 | 2.71 | 2.56 | 2.56 | 2.58 | 2.56 | 595,300 |   |  			
            | 10/6/2022 | -0.10 / -3.51% | 2.85 | 2.87 | 2.74 | 2.75 | 2.82 | 2.75 | 177,800 |   |  
            | 10/5/2022 | +0.13 / +4.78% | 2.81 | 2.85 | 2.79 | 2.85 | 2.82 | 2.85 | 284,900 |   |  			
            | 10/4/2022 | -0.08 / -2.86% | 2.82 | 2.90 | 2.72 | 2.72 | 2.79 | 2.72 | 258,700 |   |  
            | 10/3/2022 | -0.10 / -3.45% | 2.90 | 2.95 | 2.70 | 2.80 | 2.85 | 2.80 | 274,500 |   |  			
            | 9/30/2022 | -0.12 / -3.97% | 2.99 | 2.99 | 2.82 | 2.90 | 2.88 | 2.90 | 375,700 |   |  
            | 9/29/2022 | 0.00 / 0.00% | 3.03 | 3.09 | 2.90 | 3.02 | 3.04 | 3.02 | 337,100 |   |  			
            | 9/28/2022 | +0.02 / +0.67% | 3.00 | 3.12 | 2.82 | 3.02 | 3.01 | 3.02 | 400,900 |   |  
            | 9/27/2022 | -0.12 / -3.85% | 3.12 | 3.21 | 3.00 | 3.00 | 3.13 | 3.00 | 345,400 |   |  			
            | 9/26/2022 | -0.23 / -6.87% | 3.27 | 3.30 | 3.12 | 3.12 | 3.18 | 3.12 | 641,800 |   |  
            | 9/23/2022 | -0.06 / -1.76% | 3.34 | 3.45 | 3.33 | 3.35 | 3.39 | 3.35 | 362,500 |   |  			
            | 9/22/2022 | +0.08 / +2.40% | 3.32 | 3.47 | 3.32 | 3.41 | 3.37 | 3.41 | 446,700 |   |  
            | 9/21/2022 | +0.11 / +3.42% | 3.18 | 3.38 | 3.18 | 3.33 | 3.29 | 3.33 | 357,300 |   |  			
            | 9/20/2022 | +0.06 / +1.90% | 3.17 | 3.30 | 3.15 | 3.22 | 3.19 | 3.22 | 395,700 |   |  
            | 9/19/2022 | -0.23 / -6.78% | 3.38 | 3.40 | 3.16 | 3.16 | 3.27 | 3.16 | 787,600 |   |  			
            | 9/16/2022 | -0.11 / -3.14% | 3.55 | 3.55 | 3.34 | 3.39 | 3.43 | 3.39 | 456,500 |   |  
            | 9/15/2022 | -0.04 / -1.13% | 3.61 | 3.63 | 3.48 | 3.50 | 3.52 | 3.50 | 415,500 |   |  			
            | 9/14/2022 | -0.14 / -3.80% | 3.60 | 3.65 | 3.50 | 3.54 | 3.56 | 3.54 | 609,700 |   |  
            | 9/13/2022 | -0.04 / -1.08% | 3.72 | 3.72 | 3.59 | 3.68 | 3.65 | 3.68 | 329,900 |   |  			
            | 9/12/2022 | +0.24 / +6.90% | 3.52 | 3.72 | 3.52 | 3.72 | 3.68 | 3.72 | 612,500 |   |  
            | 9/9/2022 | -0.02 / -0.57% | 3.46 | 3.59 | 3.42 | 3.48 | 3.50 | 3.48 | 422,800 |   |  			
            | 9/8/2022 | -0.07 / -1.96% | 3.59 | 3.66 | 3.47 | 3.50 | 3.52 | 3.50 | 670,700 |   |  
            | 9/7/2022 | -0.25 / -6.54% | 3.82 | 3.82 | 3.57 | 3.57 | 3.70 | 3.57 | 544,000 |   |  			
            | 9/6/2022 | -0.03 / -0.78% | 3.85 | 3.91 | 3.79 | 3.82 | 3.84 | 3.82 | 545,300 |   |  
            | 9/5/2022 | -0.02 / -0.52% | 3.87 | 3.97 | 3.83 | 3.85 | 3.89 | 3.85 | 257,500 |   |  			
            | 8/31/2022 | -0.05 / -1.28% | 3.95 | 3.97 | 3.87 | 3.87 | 3.90 | 3.87 | 400,900 |   |  
            | 8/30/2022 | 0.00 / 0.00% | 4.04 | 4.04 | 3.90 | 3.92 | 3.96 | 3.92 | 457,600 |   |  			
            | 8/29/2022 | -0.20 / -4.85% | 3.96 | 4.06 | 3.84 | 3.92 | 3.94 | 3.92 | 832,300 |   |  
            | 8/26/2022 | -0.07 / -1.67% | 4.19 | 4.19 | 4.03 | 4.12 | 4.12 | 4.12 | 484,400 |   |  |