| 
    
        
            | 
                    Closing price on 10/5/2021
                 |  |  
    
        |           
                
                    | Open | 3.20 |  
                    | High | 3.20 |  
                    | Low | 2.90 |  
                    | Volume | 177,700 |  
                    | Split-adjusted Price | 3.10 |  
                
             | 
 |  SDP Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/5/2021 | 0.00 / 0.00% | 3.20 | 3.20 | 2.90 | 3.10 | 3.00 | 3.10 | 177,700 |   |  
            | 10/4/2021 | -0.30 / -8.82% | 3.30 | 3.50 | 3.00 | 3.10 | 3.10 | 3.10 | 502,400 |   |  			
            | 10/1/2021 | -0.20 / -5.56% | 3.60 | 3.60 | 3.30 | 3.40 | 3.40 | 3.40 | 124,900 |   |  
            | 9/30/2021 | -0.10 / -2.70% | 3.70 | 3.80 | 3.40 | 3.60 | 3.60 | 3.60 | 178,200 |   |  			
            | 9/29/2021 | +0.40 / +12.12% | 3.70 | 3.70 | 3.70 | 3.70 | 3.70 | 3.70 | 176,900 |   |  
            | 9/28/2021 | +0.40 / +12.12% | 2.90 | 3.70 | 2.90 | 3.70 | 3.30 | 3.70 | 698,600 |   |  			
            | 9/27/2021 | -0.50 / -13.51% | 3.40 | 3.50 | 3.20 | 3.20 | 3.30 | 3.20 | 406,700 |   |  
            | 9/24/2021 | -0.60 / -13.95% | 4.30 | 4.30 | 3.70 | 3.70 | 3.70 | 3.70 | 855,800 |   |  			
            | 9/23/2021 | +0.20 / +5.13% | 4.40 | 4.40 | 3.90 | 4.10 | 4.30 | 4.10 | 1,703,600 |   |  
            | 9/22/2021 | +0.50 / +14.71% | 3.70 | 3.90 | 3.70 | 3.90 | 3.90 | 3.90 | 340,200 |   |  			
            | 9/21/2021 | +0.40 / +12.50% | 3.50 | 3.60 | 3.20 | 3.60 | 3.40 | 3.60 | 1,281,200 |   |  
            | 9/20/2021 | +0.40 / +14.29% | 3.00 | 3.20 | 2.90 | 3.20 | 3.20 | 3.20 | 221,100 |   |  			
            | 9/17/2021 | -0.10 / -3.23% | 3.00 | 3.00 | 2.70 | 3.00 | 2.80 | 3.00 | 739,700 |   |  
            | 9/16/2021 | -0.40 / -11.76% | 3.40 | 3.50 | 2.90 | 3.00 | 3.10 | 3.00 | 603,300 |   |  			
            | 9/15/2021 | +0.30 / +9.68% | 3.50 | 3.50 | 3.00 | 3.40 | 3.40 | 3.40 | 910,600 |   |  
            | 9/14/2021 | +0.40 / +14.81% | 2.90 | 3.10 | 2.80 | 3.10 | 3.10 | 3.10 | 518,500 |   |  			
            | 9/13/2021 | +0.30 / +12.00% | 2.60 | 2.80 | 2.50 | 2.80 | 2.70 | 2.80 | 547,600 |   |  
            | 9/10/2021 | +0.10 / +4.00% | 2.50 | 2.60 | 2.40 | 2.60 | 2.50 | 2.60 | 201,300 |   |  			
            | 9/9/2021 | +0.10 / +4.17% | 2.40 | 2.50 | 2.30 | 2.50 | 2.50 | 2.50 | 104,800 |   |  
            | 9/8/2021 | 0.00 / 0.00% | 2.50 | 2.50 | 2.40 | 2.50 | 2.40 | 2.50 | 54,600 |   |  			
            | 9/7/2021 | -0.20 / -7.69% | 2.60 | 2.70 | 2.40 | 2.40 | 2.50 | 2.40 | 274,500 |   |  
            | 9/6/2021 | +0.10 / +4.00% | 2.60 | 2.70 | 2.50 | 2.60 | 2.60 | 2.60 | 204,000 |   |  			
            | 9/1/2021 | +0.10 / +4.17% | 2.50 | 2.60 | 2.40 | 2.50 | 2.50 | 2.50 | 357,800 |   |  
            | 8/31/2021 | +0.10 / +4.17% | 2.40 | 2.50 | 2.40 | 2.50 | 2.40 | 2.50 | 90,000 |   |  			
            | 8/30/2021 | 0.00 / 0.00% | 2.30 | 2.50 | 2.20 | 2.40 | 2.40 | 2.40 | 178,100 |   |  
            | 8/27/2021 | +0.10 / +4.35% | 2.30 | 2.50 | 2.30 | 2.40 | 2.40 | 2.40 | 52,000 |   |  			
            | 8/26/2021 | +0.30 / +14.29% | 2.10 | 2.40 | 2.10 | 2.40 | 2.30 | 2.40 | 130,200 |   |  
            | 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 |   |  |