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            | 
                    Closing price on 5/18/2017
                 |  |  
    
        |           
                
                    | Open | 2.30 |  
                    | High | 2.40 |  
                    | Low | 2.20 |  
                    | Volume | 174,200 |  
                    | Split-adjusted Price | 2.20 |  
                
             | 
 |  SPI Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/18/2017 | -0.10 / -4.35% | 2.30 | 2.40 | 2.20 | 2.20 | 2.27 | 2.20 | 174,200 |   |  
            | 5/17/2017 | 0.00 / 0.00% | 2.30 | 2.40 | 2.30 | 2.30 | 2.30 | 2.30 | 64,200 |   |  			
            | 5/16/2017 | 0.00 / 0.00% | 2.30 | 2.40 | 2.30 | 2.30 | 2.30 | 2.30 | 203,900 |   |  
            | 5/15/2017 | +0.10 / +4.55% | 2.20 | 2.40 | 2.20 | 2.30 | 2.25 | 2.30 | 338,600 |   |  			
            | 5/12/2017 | 0.00 / 0.00% | 2.10 | 2.20 | 2.10 | 2.20 | 2.20 | 2.20 | 104,300 |   |  
            | 5/11/2017 | 0.00 / 0.00% | 2.20 | 2.20 | 2.10 | 2.20 | 2.20 | 2.20 | 66,400 |   |  			
            | 5/10/2017 | 0.00 / 0.00% | 2.20 | 2.30 | 2.10 | 2.20 | 2.20 | 2.20 | 170,900 |   |  
            | 5/9/2017 | 0.00 / 0.00% | 2.20 | 2.30 | 2.10 | 2.20 | 2.20 | 2.20 | 129,650 |   |  			
            | 5/8/2017 | 0.00 / 0.00% | 2.20 | 2.30 | 2.20 | 2.20 | 2.20 | 2.20 | 116,500 |   |  
            | 5/5/2017 | 0.00 / 0.00% | 2.20 | 2.30 | 2.10 | 2.20 | 2.17 | 2.20 | 158,600 |   |  			
            | 5/4/2017 | 0.00 / 0.00% | 2.20 | 2.20 | 2.10 | 2.20 | 2.19 | 2.20 | 45,700 |   |  
            | 5/3/2017 | +0.10 / +4.76% | 2.10 | 2.30 | 2.10 | 2.20 | 2.10 | 2.20 | 112,700 |   |  			
            | 4/28/2017 | -0.10 / -4.55% | 2.20 | 2.20 | 2.10 | 2.10 | 2.20 | 2.10 | 107,700 |   |  
            | 4/27/2017 | 0.00 / 0.00% | 2.30 | 2.30 | 2.20 | 2.20 | 2.20 | 2.20 | 41,800 |   |  			
            | 4/26/2017 | -0.10 / -4.35% | 2.30 | 2.30 | 2.20 | 2.20 | 2.30 | 2.20 | 205,600 |   |  
            | 4/25/2017 | +0.10 / +4.55% | 2.20 | 2.30 | 2.20 | 2.30 | 2.20 | 2.30 | 95,700 |   |  			
            | 4/24/2017 | 0.00 / 0.00% | 2.20 | 2.30 | 2.20 | 2.20 | 2.20 | 2.20 | 220,000 |   |  
            | 4/21/2017 | -0.10 / -4.35% | 2.30 | 2.30 | 2.20 | 2.20 | 2.21 | 2.20 | 238,100 |   |  			
            | 4/20/2017 | 0.00 / 0.00% | 2.30 | 2.30 | 2.20 | 2.30 | 2.30 | 2.30 | 74,410 |   |  
            | 4/19/2017 | 0.00 / 0.00% | 2.30 | 2.30 | 2.30 | 2.30 | 2.30 | 2.30 | 53,700 |   |  			
            | 4/18/2017 | 0.00 / 0.00% | 2.30 | 2.40 | 2.30 | 2.30 | 2.30 | 2.30 | 75,700 |   |  
            | 4/17/2017 | 0.00 / 0.00% | 2.30 | 2.40 | 2.30 | 2.30 | 2.30 | 2.30 | 142,600 |   |  			
            | 4/14/2017 | -0.10 / -4.17% | 2.30 | 2.40 | 2.20 | 2.30 | 2.40 | 2.30 | 188,100 |   |  
            | 4/13/2017 | -0.10 / -4.00% | 2.50 | 2.50 | 2.30 | 2.40 | 2.40 | 2.40 | 87,510 |   |  			
            | 4/12/2017 | +0.10 / +4.17% | 2.40 | 2.60 | 2.40 | 2.50 | 2.46 | 2.50 | 256,800 |   |  
            | 4/11/2017 | +0.20 / +9.09% | 2.20 | 2.40 | 2.20 | 2.40 | 2.20 | 2.40 | 406,200 |   |  			
            | 4/10/2017 | -0.10 / -4.35% | 2.30 | 2.30 | 2.20 | 2.20 | 2.23 | 2.20 | 116,500 |   |  
            | 4/7/2017 | 0.00 / 0.00% | 2.30 | 2.30 | 2.20 | 2.30 | 2.29 | 2.30 | 109,200 |   |  			
            | 4/5/2017 | -0.10 / -4.17% | 2.40 | 2.40 | 2.30 | 2.30 | 2.30 | 2.30 | 261,800 |   |  
            | 4/4/2017 | +0.10 / +4.35% | 2.40 | 2.40 | 2.30 | 2.40 | 2.30 | 2.40 | 98,900 |   |  |