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                    Closing price on 6/28/2021
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        |           
                
                    | Open | 2.40 |  
                    | High | 2.50 |  
                    | Low | 2.30 |  
                    | Volume | 73,200 |  
                    | Split-adjusted Price | 2.40 |  
                
             | 
 |  SDP Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 6/4/2021 | -0.10 / -3.85% | 2.70 | 2.80 | 2.30 | 2.50 | 2.50 | 2.50 | 381,300 |   |  
            | 6/3/2021 | +0.30 / +12.50% | 2.50 | 2.70 | 2.40 | 2.70 | 2.60 | 2.70 | 265,000 |   |  			
            | 6/2/2021 | +0.20 / +8.70% | 2.30 | 2.50 | 2.30 | 2.50 | 2.40 | 2.50 | 87,200 |   |  
            | 6/1/2021 | +0.20 / +9.09% | 2.30 | 2.40 | 2.20 | 2.40 | 2.30 | 2.40 | 116,000 |   |  			
            | 5/31/2021 | 0.00 / 0.00% | 2.40 | 2.40 | 2.20 | 2.30 | 2.20 | 2.30 | 50,800 |   |  
            | 5/28/2021 | +0.10 / +4.35% | 2.30 | 2.40 | 2.20 | 2.40 | 2.30 | 2.40 | 55,400 |   |  			
            | 5/27/2021 | +0.20 / +9.09% | 2.20 | 2.40 | 2.20 | 2.40 | 2.30 | 2.40 | 68,200 |   |  
            | 5/26/2021 | -0.10 / -4.35% | 2.40 | 2.40 | 2.20 | 2.20 | 2.20 | 2.20 | 110,200 |   |  			
            | 5/25/2021 | +0.10 / +4.35% | 2.40 | 2.40 | 2.30 | 2.40 | 2.30 | 2.40 | 9,100 |   |  
            | 5/24/2021 | -0.20 / -8.00% | 2.40 | 2.50 | 2.30 | 2.30 | 2.30 | 2.30 | 259,100 |   |  			
            | 5/21/2021 | +0.10 / +4.17% | 2.40 | 2.60 | 2.40 | 2.50 | 2.50 | 2.50 | 40,900 |   |  
            | 5/20/2021 | -0.30 / -11.11% | 2.50 | 2.60 | 2.40 | 2.40 | 2.40 | 2.40 | 56,900 |   |  			
            | 5/19/2021 | 0.00 / 0.00% | 2.70 | 2.80 | 2.60 | 2.60 | 2.65 | 2.60 | 180,200 |   |  
            | 5/18/2021 | +0.30 / +13.04% | 2.40 | 2.60 | 2.40 | 2.60 | 2.57 | 2.60 | 207,500 |   |  |