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                    Closing price on 8/6/2021
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                    | Open | 35.00 |  
                    | High | 35.10 |  
                    | Low | 34.00 |  
                    | Volume | 16,200 |  
                    | Split-adjusted Price | 13.08 |  
                
             | 
 |  VTK Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/6/2021 | -0.70 / -2.01% | 35.00 | 35.10 | 34.00 | 34.10 | 34.50 | 13.08 | 16,200 |   |  
            | 8/5/2021 | +0.80 / +2.34% | 34.20 | 35.30 | 34.20 | 35.00 | 34.80 | 13.43 | 3,000 |   |  			
            | 8/4/2021 | +0.30 / +0.88% | 34.00 | 35.00 | 34.00 | 34.30 | 34.20 | 13.16 | 6,100 |   |  
            | 8/3/2021 | +0.70 / +2.07% | 34.30 | 34.50 | 33.00 | 34.50 | 34.00 | 13.24 | 13,000 |   |  			
            | 8/2/2021 | +0.50 / +1.48% | 35.40 | 35.40 | 33.30 | 34.20 | 33.80 | 13.12 | 8,300 |   |  
            | 7/30/2021 | +1.50 / +4.66% | 33.40 | 35.50 | 33.30 | 33.70 | 33.70 | 12.93 | 20,300 |   |  			
            | 7/29/2021 | +1.90 / +6.11% | 31.20 | 33.00 | 31.20 | 33.00 | 32.20 | 12.66 | 15,300 |   |  
            | 7/28/2021 | +0.30 / +0.97% | 31.10 | 31.30 | 31.00 | 31.30 | 31.10 | 12.01 | 3,200 |   |  			
            | 7/27/2021 | +0.50 / +1.63% | 31.80 | 31.80 | 30.80 | 31.10 | 31.00 | 11.93 | 3,300 |   |  
            | 7/26/2021 | +0.40 / +1.28% | 30.10 | 31.70 | 30.10 | 31.70 | 30.60 | 12.16 | 1,400 |   |  			
            | 7/23/2021 | +0.10 / +0.32% | 31.30 | 31.40 | 31.00 | 31.40 | 31.30 | 12.05 | 1,200 |   |  
            | 7/22/2021 | +1.70 / +5.59% | 32.90 | 32.90 | 31.00 | 32.10 | 31.30 | 12.32 | 900 |   |  			
            | 7/21/2021 | -0.70 / -2.26% | 30.00 | 31.80 | 30.00 | 30.30 | 30.40 | 11.63 | 1,500 |   |  
            | 7/20/2021 | -0.60 / -1.90% | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 | 11.89 | 4,600 |   |  			
            | 7/19/2021 | +1.10 / +3.58% | 30.70 | 31.80 | 30.70 | 31.80 | 31.60 | 12.20 | 5,200 |   |  
            | 7/16/2021 | 0.00 / 0.00% | 30.70 | 30.70 | 30.70 | 30.70 | 30.70 | 11.78 | 0 |   |  			
            | 7/15/2021 | 0.00 / 0.00% | 32.50 | 32.50 | 30.30 | 32.00 | 30.70 | 12.28 | 2,600 |   |  
            | 7/14/2021 | 0.00 / 0.00% | 32.00 | 32.00 | 32.00 | 32.00 | 32.00 | 12.28 | 0 |   |  			
            | 7/13/2021 | 0.00 / 0.00% | 32.00 | 32.00 | 32.00 | 32.00 | 32.00 | 12.28 | 0 |   |  
            | 7/12/2021 | 0.00 / 0.00% | 32.00 | 32.00 | 32.00 | 32.00 | 32.00 | 12.28 | 6,000 |   |  			
            | 7/9/2021 | 0.00 / 0.00% | 32.00 | 32.00 | 32.00 | 32.00 | 32.00 | 12.28 | 0 |   |  
            | 7/8/2021 | +2.00 / +6.67% | 32.00 | 32.00 | 32.00 | 32.00 | 32.00 | 12.28 | 100 |   |  			
            | 7/7/2021 | -1.20 / -3.85% | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 11.51 | 1,000 |   |  
            | 7/6/2021 | -0.70 / -2.19% | 31.10 | 31.50 | 31.10 | 31.30 | 31.20 | 12.01 | 3,200 |   |  			
            | 7/5/2021 | 0.00 / 0.00% | 32.00 | 32.00 | 32.00 | 32.00 | 32.00 | 12.28 | 2,100 |   |  
            | 7/2/2021 | 0.00 / 0.00% | 32.00 | 32.00 | 32.00 | 32.00 | 32.00 | 12.28 | 2,100 |   |  			
            | 7/1/2021 | 0.00 / 0.00% | 32.00 | 32.00 | 32.00 | 32.00 | 32.00 | 12.28 | 100 |   |  
            | 6/30/2021 | 0.00 / 0.00% | 32.00 | 32.00 | 32.00 | 32.00 | 32.00 | 12.28 | 100 |   |  			
            | 6/29/2021 | +0.10 / +0.31% | 32.00 | 32.00 | 31.90 | 31.90 | 32.00 | 12.24 | 1,000 |   |  
            | 6/28/2021 | -0.20 / -0.63% | 31.80 | 31.80 | 31.80 | 31.80 | 31.80 | 12.20 | 300 |   |  |