| 
    
        
            | 
                    Closing price on 2/28/2019
                 |  |  
    
        |           
                
                    | Open | 0.70 |  
                    | High | 0.80 |  
                    | Low | 0.70 |  
                    | Volume | 89,700 |  
                    | Split-adjusted Price | 0.80 |  
                
             | 
 |  SPI Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/28/2019 | 0.00 / 0.00% | 0.70 | 0.80 | 0.70 | 0.80 | 0.78 | 0.80 | 89,700 |   |  
            | 2/27/2019 | 0.00 / 0.00% | 0.80 | 0.90 | 0.70 | 0.80 | 0.82 | 0.80 | 458,300 |   |  			
            | 2/26/2019 | +0.10 / +14.29% | 0.70 | 0.80 | 0.60 | 0.80 | 0.77 | 0.80 | 907,400 |   |  
            | 2/25/2019 | 0.00 / 0.00% | 0.70 | 0.70 | 0.60 | 0.70 | 0.70 | 0.70 | 66,300 |   |  			
            | 2/22/2019 | 0.00 / 0.00% | 0.70 | 0.70 | 0.60 | 0.70 | 0.67 | 0.70 | 121,000 |   |  
            | 2/21/2019 | -0.10 / -12.50% | 0.80 | 0.80 | 0.70 | 0.70 | 0.70 | 0.70 | 128,200 |   |  			
            | 2/20/2019 | +0.10 / +14.29% | 0.70 | 0.80 | 0.60 | 0.80 | 0.73 | 0.80 | 397,100 |   |  
            | 2/19/2019 | 0.00 / 0.00% | 0.70 | 0.80 | 0.70 | 0.70 | 0.73 | 0.70 | 85,400 |   |  			
            | 2/18/2019 | 0.00 / 0.00% | 0.70 | 0.80 | 0.60 | 0.70 | 0.71 | 0.70 | 309,700 |   |  
            | 2/15/2019 | 0.00 / 0.00% | 0.70 | 0.80 | 0.60 | 0.70 | 0.70 | 0.70 | 284,700 |   |  			
            | 2/14/2019 | 0.00 / 0.00% | 0.80 | 0.80 | 0.70 | 0.70 | 0.70 | 0.70 | 24,000 |   |  
            | 2/13/2019 | 0.00 / 0.00% | 0.70 | 0.80 | 0.70 | 0.70 | 0.71 | 0.70 | 170,800 |   |  			
            | 2/12/2019 | -0.10 / -12.50% | 0.80 | 0.80 | 0.70 | 0.70 | 0.78 | 0.70 | 114,500 |   |  
            | 2/11/2019 | +0.10 / +14.29% | 0.70 | 0.80 | 0.60 | 0.80 | 0.74 | 0.80 | 225,400 |   |  			
            | 2/1/2019 | +0.10 / +16.67% | 0.70 | 0.70 | 0.60 | 0.70 | 0.70 | 0.70 | 215,100 |   |  
            | 1/31/2019 | -0.10 / -14.29% | 0.60 | 0.70 | 0.60 | 0.60 | 0.66 | 0.60 | 84,700 |   |  			
            | 1/30/2019 | +0.10 / +16.67% | 0.60 | 0.70 | 0.60 | 0.70 | 0.62 | 0.70 | 167,400 |   |  
            | 1/29/2019 | 0.00 / 0.00% | 0.70 | 0.70 | 0.60 | 0.60 | 0.60 | 0.60 | 161,000 |   |  			
            | 1/28/2019 | 0.00 / 0.00% | 0.70 | 0.70 | 0.60 | 0.60 | 0.65 | 0.60 | 35,600 |   |  
            | 1/25/2019 | 0.00 / 0.00% | 0.60 | 0.70 | 0.60 | 0.60 | 0.60 | 0.60 | 65,300 |   |  			
            | 1/24/2019 | 0.00 / 0.00% | 0.70 | 0.70 | 0.60 | 0.60 | 0.67 | 0.60 | 97,700 |   |  
            | 1/23/2019 | 0.00 / 0.00% | 0.70 | 0.70 | 0.60 | 0.60 | 0.61 | 0.60 | 35,000 |   |  			
            | 1/22/2019 | -0.10 / -14.29% | 0.60 | 0.70 | 0.60 | 0.60 | 0.60 | 0.60 | 182,600 |   |  
            | 1/21/2019 | +0.10 / +16.67% | 0.70 | 0.70 | 0.60 | 0.70 | 0.70 | 0.70 | 109,400 |   |  			
            | 1/18/2019 | -0.10 / -14.29% | 0.70 | 0.70 | 0.60 | 0.60 | 0.67 | 0.60 | 139,100 |   |  
            | 1/17/2019 | 0.00 / 0.00% | 0.80 | 0.80 | 0.60 | 0.70 | 0.71 | 0.70 | 74,600 |   |  			
            | 1/16/2019 | -0.10 / -12.50% | 0.70 | 0.80 | 0.70 | 0.70 | 0.72 | 0.70 | 110,100 |   |  
            | 1/15/2019 | +0.10 / +14.29% | 0.70 | 0.80 | 0.70 | 0.80 | 0.71 | 0.80 | 36,300 |   |  			
            | 1/14/2019 | 0.00 / 0.00% | 0.80 | 0.80 | 0.70 | 0.70 | 0.70 | 0.70 | 22,100 |   |  
            | 1/11/2019 | -0.10 / -12.50% | 0.80 | 0.80 | 0.70 | 0.70 | 0.70 | 0.70 | 140,900 |   |  |