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                    Closing price on 8/25/2021
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        |           
                
                    | Open | 2.30 |  
                    | High | 2.30 |  
                    | Low | 2.00 |  
                    | Volume | 221,400 |  
                    | Split-adjusted Price | 2.00 |  
                
             | 
 |  SDP Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/25/2021 | -0.20 / -9.09% | 2.30 | 2.30 | 2.00 | 2.00 | 2.10 | 2.00 | 221,400 |   |  
            | 8/24/2021 | 0.00 / 0.00% | 2.20 | 2.30 | 2.00 | 2.30 | 2.20 | 2.30 | 198,200 |   |  			
            | 8/23/2021 | -0.30 / -11.54% | 2.70 | 2.70 | 2.30 | 2.30 | 2.30 | 2.30 | 433,500 |   |  
            | 8/20/2021 | +0.30 / +12.50% | 2.70 | 2.70 | 2.50 | 2.70 | 2.60 | 2.70 | 433,300 |   |  			
            | 8/19/2021 | +0.30 / +13.64% | 2.30 | 2.50 | 2.20 | 2.50 | 2.40 | 2.50 | 353,800 |   |  
            | 8/18/2021 | +0.30 / +15.00% | 2.00 | 2.30 | 2.00 | 2.30 | 2.20 | 2.30 | 713,400 |   |  			
            | 8/17/2021 | 0.00 / 0.00% | 2.00 | 2.10 | 2.00 | 2.00 | 2.00 | 2.00 | 16,700 |   |  
            | 8/16/2021 | 0.00 / 0.00% | 2.00 | 2.10 | 2.00 | 2.00 | 2.00 | 2.00 | 38,200 |   |  			
            | 8/13/2021 | 0.00 / 0.00% | 2.10 | 2.10 | 2.00 | 2.00 | 2.00 | 2.00 | 52,200 |   |  
            | 8/12/2021 | +0.10 / +5.00% | 2.10 | 2.10 | 2.00 | 2.10 | 2.00 | 2.10 | 48,200 |   |  			
            | 8/11/2021 | +0.10 / +5.00% | 2.10 | 2.10 | 2.00 | 2.10 | 2.00 | 2.10 | 88,100 |   |  
            | 8/10/2021 | 0.00 / 0.00% | 2.10 | 2.10 | 2.00 | 2.10 | 2.00 | 2.10 | 51,800 |   |  			
            | 8/9/2021 | 0.00 / 0.00% | 2.10 | 2.10 | 2.00 | 2.10 | 2.10 | 2.10 | 11,100 |   |  
            | 8/6/2021 | +0.10 / +4.76% | 2.20 | 2.30 | 2.00 | 2.20 | 2.10 | 2.20 | 44,400 |   |  			
            | 8/5/2021 | +0.20 / +10.00% | 2.00 | 2.30 | 2.00 | 2.20 | 2.10 | 2.20 | 94,900 |   |  
            | 8/4/2021 | +0.10 / +5.00% | 2.00 | 2.10 | 1.90 | 2.10 | 2.00 | 2.10 | 58,400 |   |  			
            | 8/3/2021 | 0.00 / 0.00% | 2.00 | 2.00 | 1.90 | 2.00 | 2.00 | 2.00 | 25,200 |   |  
            | 8/2/2021 | 0.00 / 0.00% | 1.90 | 2.00 | 1.90 | 2.00 | 2.00 | 2.00 | 15,500 |   |  			
            | 7/30/2021 | 0.00 / 0.00% | 1.90 | 2.00 | 1.90 | 2.00 | 2.00 | 2.00 | 12,500 |   |  
            | 7/29/2021 | 0.00 / 0.00% | 1.90 | 2.00 | 1.90 | 2.00 | 2.00 | 2.00 | 22,700 |   |  			
            | 7/28/2021 | -0.10 / -5.00% | 2.10 | 2.10 | 1.90 | 1.90 | 2.00 | 1.90 | 12,900 |   |  
            | 7/27/2021 | 0.00 / 0.00% | 2.00 | 2.10 | 2.00 | 2.00 | 2.00 | 2.00 | 36,400 |   |  			
            | 7/26/2021 | +0.10 / +5.26% | 2.00 | 2.10 | 1.90 | 2.00 | 2.00 | 2.00 | 77,300 |   |  
            | 7/23/2021 | 0.00 / 0.00% | 1.90 | 2.00 | 1.90 | 2.00 | 1.90 | 2.00 | 30,700 |   |  			
            | 7/22/2021 | 0.00 / 0.00% | 2.00 | 2.10 | 1.90 | 2.00 | 2.00 | 2.00 | 16,700 |   |  
            | 7/21/2021 | +0.10 / +5.00% | 2.10 | 2.10 | 2.00 | 2.10 | 2.00 | 2.10 | 18,700 |   |  			
            | 7/20/2021 | +0.10 / +5.00% | 2.00 | 2.10 | 2.00 | 2.10 | 2.00 | 2.10 | 25,600 |   |  
            | 7/19/2021 | -0.10 / -4.76% | 2.10 | 2.10 | 2.00 | 2.00 | 2.00 | 2.00 | 21,300 |   |  			
            | 7/16/2021 | -0.10 / -4.55% | 2.20 | 2.20 | 2.10 | 2.10 | 2.10 | 2.10 | 6,000 |   |  
            | 7/15/2021 | +0.10 / +4.76% | 2.00 | 2.20 | 1.90 | 2.20 | 2.20 | 2.20 | 130,900 |   |  |