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                    Closing price on 7/16/2021
                 |  |  
    
        |           
                
                    | Open | 2.20 |  
                    | High | 2.20 |  
                    | Low | 2.10 |  
                    | Volume | 6,000 |  
                    | Split-adjusted Price | 2.10 |  
                
             | 
 |  SDP Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 7/14/2021 | -0.10 / -4.55% | 2.20 | 2.20 | 2.00 | 2.10 | 2.10 | 2.10 | 14,700 |   |  
            | 7/13/2021 | +0.20 / +10.00% | 2.00 | 2.20 | 2.00 | 2.20 | 2.20 | 2.20 | 37,200 |   |  			
            | 7/12/2021 | -0.20 / -9.09% | 2.10 | 2.10 | 1.90 | 2.00 | 2.00 | 2.00 | 79,900 |   |  
            | 7/9/2021 | 0.00 / 0.00% | 2.20 | 2.30 | 2.10 | 2.30 | 2.20 | 2.30 | 59,300 |   |  			
            | 7/8/2021 | +0.10 / +4.76% | 2.10 | 2.30 | 2.10 | 2.20 | 2.26 | 2.20 | 33,200 |   |  
            | 7/7/2021 | -0.20 / -8.70% | 2.10 | 2.30 | 2.00 | 2.10 | 2.10 | 2.10 | 152,500 |   |  			
            | 7/6/2021 | -0.10 / -4.35% | 2.30 | 2.30 | 2.20 | 2.20 | 2.30 | 2.20 | 45,200 |   |  
            | 7/5/2021 | 0.00 / 0.00% | 2.40 | 2.40 | 2.20 | 2.30 | 2.30 | 2.30 | 129,000 |   |  			
            | 7/2/2021 | 0.00 / 0.00% | 2.40 | 2.40 | 2.30 | 2.30 | 2.30 | 2.30 | 44,900 |   |  
            | 7/1/2021 | 0.00 / 0.00% | 2.40 | 2.40 | 2.30 | 2.40 | 2.30 | 2.40 | 46,100 |   |  			
            | 6/30/2021 | +0.10 / +4.35% | 2.30 | 2.50 | 2.30 | 2.40 | 2.40 | 2.40 | 132,400 |   |  
            | 6/29/2021 | -0.10 / -4.17% | 2.30 | 2.40 | 2.30 | 2.30 | 2.30 | 2.30 | 31,400 |   |  			
            | 6/28/2021 | +0.10 / +4.35% | 2.40 | 2.50 | 2.30 | 2.40 | 2.40 | 2.40 | 73,200 |   |  
            | 6/25/2021 | 0.00 / 0.00% | 2.50 | 2.50 | 2.30 | 2.40 | 2.30 | 2.40 | 183,000 |   |  			
            | 6/24/2021 | -0.10 / -4.00% | 2.40 | 2.50 | 2.30 | 2.40 | 2.40 | 2.40 | 71,100 |   |  
            | 6/23/2021 | -0.10 / -4.00% | 2.50 | 2.60 | 2.40 | 2.40 | 2.50 | 2.40 | 77,800 |   |  			
            | 6/22/2021 | +0.20 / +8.33% | 2.40 | 2.60 | 2.40 | 2.60 | 2.50 | 2.60 | 468,900 |   |  
            | 6/21/2021 | +0.10 / +4.35% | 2.40 | 2.40 | 2.30 | 2.40 | 2.40 | 2.40 | 46,100 |   |  			
            | 6/18/2021 | +0.10 / +4.35% | 2.40 | 2.40 | 2.30 | 2.40 | 2.30 | 2.40 | 59,800 |   |  
            | 6/17/2021 | +0.10 / +4.35% | 2.40 | 2.40 | 2.30 | 2.40 | 2.30 | 2.40 | 52,500 |   |  			
            | 6/16/2021 | +0.10 / +4.35% | 2.40 | 2.40 | 2.30 | 2.40 | 2.30 | 2.40 | 23,700 |   |  
            | 6/15/2021 | 0.00 / 0.00% | 2.30 | 2.40 | 2.30 | 2.40 | 2.30 | 2.40 | 130,600 |   |  			
            | 6/14/2021 | 0.00 / 0.00% | 2.30 | 2.40 | 2.30 | 2.40 | 2.40 | 2.40 | 52,700 |   |  
            | 6/11/2021 | +0.10 / +4.17% | 2.40 | 2.50 | 2.30 | 2.50 | 2.40 | 2.50 | 102,200 |   |  			
            | 6/10/2021 | 0.00 / 0.00% | 2.50 | 2.50 | 2.30 | 2.40 | 2.40 | 2.40 | 136,200 |   |  
            | 6/9/2021 | 0.00 / 0.00% | 2.50 | 2.50 | 2.30 | 2.50 | 2.40 | 2.50 | 127,000 |   |  			
            | 6/8/2021 | +0.10 / +4.17% | 2.50 | 2.60 | 2.40 | 2.50 | 2.50 | 2.50 | 237,600 |   |  
            | 6/7/2021 | 0.00 / 0.00% | 2.50 | 2.50 | 2.40 | 2.50 | 2.41 | 2.50 | 143,200 |   |  |