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                    Closing price on 5/20/2020
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                    | Open | 3.20 |  
                    | High | 3.20 |  
                    | Low | 3.00 |  
                    | Volume | 600 |  
                    | Split-adjusted Price | 3.00 |  
                
             | 
 |  SDD Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/20/2020 | -0.20 / -6.25% | 3.20 | 3.20 | 3.00 | 3.00 | 3.03 | 3.00 | 600 |   |  
            | 5/19/2020 | +0.10 / +3.23% | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 100 |   |  			
            | 5/18/2020 | -0.20 / -6.06% | 3.10 | 3.10 | 3.10 | 3.10 | 3.10 | 3.10 | 200 |   |  
            | 5/15/2020 | 0.00 / 0.00% | 3.30 | 3.30 | 3.30 | 3.30 | 3.30 | 3.30 | 0 |   |  			
            | 5/14/2020 | +0.30 / +10.00% | 3.30 | 3.30 | 3.30 | 3.30 | 3.30 | 3.30 | 4,500 |   |  
            | 5/13/2020 | -0.30 / -9.09% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 1,000 |   |  			
            | 5/12/2020 | +0.30 / +10.00% | 2.80 | 3.30 | 2.80 | 3.30 | 3.05 | 3.30 | 10,300 |   |  
            | 5/11/2020 | -0.30 / -9.09% | 3.10 | 3.10 | 3.00 | 3.00 | 3.02 | 3.00 | 6,500 |   |  			
            | 5/8/2020 | -0.20 / -5.71% | 3.30 | 3.30 | 3.30 | 3.30 | 3.30 | 3.30 | 3,000 |   |  
            | 5/7/2020 | +0.40 / +12.90% | 3.50 | 3.50 | 3.50 | 3.50 | 3.50 | 3.50 | 2,100 |   |  			
            | 5/6/2020 | -0.30 / -8.82% | 3.30 | 3.40 | 3.10 | 3.10 | 3.30 | 3.10 | 19,100 |   |  
            | 5/5/2020 | +0.20 / +6.25% | 3.10 | 3.40 | 3.10 | 3.40 | 3.22 | 3.40 | 12,300 |   |  			
            | 5/4/2020 | 0.00 / 0.00% | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 0 |   |  
            | 4/29/2020 | -0.30 / -8.33% | 3.20 | 3.30 | 3.20 | 3.30 | 3.20 | 3.30 | 4,200 |   |  			
            | 4/28/2020 | +0.20 / +5.88% | 3.00 | 3.60 | 3.00 | 3.60 | 3.31 | 3.60 | 11,800 |   |  
            | 4/27/2020 | +0.40 / +13.33% | 3.40 | 3.40 | 3.40 | 3.40 | 3.40 | 3.40 | 70,600 |   |  			
            | 4/24/2020 | -0.10 / -3.23% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3,300 |   |  
            | 4/23/2020 | -0.40 / -11.43% | 3.10 | 3.10 | 3.10 | 3.10 | 3.10 | 3.10 | 100 |   |  			
            | 4/22/2020 | +0.20 / +6.06% | 3.00 | 3.50 | 3.00 | 3.50 | 3.49 | 3.50 | 5,100 |   |  
            | 4/21/2020 | +0.40 / +13.79% | 3.30 | 3.30 | 3.30 | 3.30 | 3.30 | 3.30 | 62,800 |   |  			
            | 4/20/2020 | +0.30 / +11.54% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 10,600 |   |  
            | 4/17/2020 | -0.30 / -10.34% | 2.90 | 2.90 | 2.60 | 2.60 | 2.63 | 2.60 | 278,700 |   |  			
            | 4/16/2020 | +0.10 / +3.57% | 2.50 | 2.90 | 2.50 | 2.90 | 2.61 | 2.90 | 3,700 |   |  
            | 4/15/2020 | +0.20 / +7.69% | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 3,500 |   |  			
            | 4/14/2020 | +0.10 / +4.00% | 2.50 | 2.60 | 2.50 | 2.60 | 2.50 | 2.60 | 2,300 |   |  
            | 4/13/2020 | 0.00 / 0.00% | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 0 |   |  			
            | 4/10/2020 | -0.30 / -10.71% | 2.50 | 2.60 | 2.50 | 2.50 | 2.51 | 2.50 | 20,000 |   |  
            | 4/9/2020 | +0.30 / +12.00% | 2.20 | 2.80 | 2.20 | 2.80 | 2.59 | 2.80 | 7,900 |   |  			
            | 4/8/2020 | 0.00 / 0.00% | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 0 |   |  
            | 4/7/2020 | 0.00 / 0.00% | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 0 |   |  |