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            | 
                    Closing price on 3/21/2017
                 |  |  
    
        |           
                
                    | Open | 2.50 |  
                    | High | 2.60 |  
                    | Low | 2.40 |  
                    | Volume | 102,100 |  
                    | Split-adjusted Price | 2.40 |  
                
             | 
 |  SPI Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/21/2017 | -0.10 / -4.00% | 2.50 | 2.60 | 2.40 | 2.40 | 2.50 | 2.40 | 102,100 |   |  
            | 3/20/2017 | 0.00 / 0.00% | 2.60 | 2.60 | 2.50 | 2.50 | 2.50 | 2.50 | 323,510 |   |  			
            | 3/17/2017 | 0.00 / 0.00% | 2.50 | 2.60 | 2.40 | 2.50 | 2.45 | 2.50 | 318,700 |   |  
            | 3/16/2017 | -0.10 / -3.85% | 2.60 | 2.60 | 2.40 | 2.50 | 2.49 | 2.50 | 226,200 |   |  			
            | 3/15/2017 | +0.10 / +4.00% | 2.50 | 2.70 | 2.50 | 2.60 | 2.57 | 2.60 | 176,000 |   |  
            | 3/14/2017 | 0.00 / 0.00% | 2.40 | 2.60 | 2.40 | 2.50 | 2.47 | 2.50 | 131,800 |   |  			
            | 3/13/2017 | +0.10 / +4.17% | 2.40 | 2.60 | 2.30 | 2.50 | 2.41 | 2.50 | 364,600 |   |  
            | 3/10/2017 | -0.10 / -4.00% | 2.50 | 2.60 | 2.40 | 2.40 | 2.50 | 2.40 | 299,500 |   |  			
            | 3/9/2017 | -0.20 / -7.41% | 2.60 | 2.70 | 2.50 | 2.50 | 2.60 | 2.50 | 403,720 |   |  
            | 3/8/2017 | 0.00 / 0.00% | 2.60 | 2.70 | 2.50 | 2.70 | 2.70 | 2.70 | 121,400 |   |  			
            | 3/7/2017 | 0.00 / 0.00% | 2.70 | 2.70 | 2.50 | 2.70 | 2.60 | 2.70 | 501,330 |   |  
            | 3/6/2017 | -0.10 / -3.57% | 2.80 | 2.80 | 2.60 | 2.70 | 2.80 | 2.70 | 442,120 |   |  			
            | 3/3/2017 | 0.00 / 0.00% | 2.80 | 2.80 | 2.70 | 2.80 | 2.73 | 2.80 | 226,900 |   |  
            | 3/2/2017 | +0.20 / +7.69% | 2.70 | 2.80 | 2.60 | 2.80 | 2.78 | 2.80 | 1,456,600 |   |  			
            | 3/1/2017 | -0.10 / -3.70% | 2.80 | 2.80 | 2.50 | 2.60 | 2.64 | 2.60 | 532,850 |   |  
            | 2/28/2017 | +0.20 / +8.00% | 2.50 | 2.70 | 2.50 | 2.70 | 2.67 | 2.70 | 859,550 |   |  			
            | 2/27/2017 | -0.10 / -3.85% | 2.60 | 2.60 | 2.40 | 2.50 | 2.51 | 2.50 | 499,300 |   |  
            | 2/24/2017 | -0.10 / -3.70% | 2.80 | 2.80 | 2.60 | 2.60 | 2.72 | 2.60 | 486,200 |   |  			
            | 2/23/2017 | +0.20 / +8.00% | 2.50 | 2.70 | 2.50 | 2.70 | 2.68 | 2.70 | 572,815 |   |  
            | 2/22/2017 | -0.20 / -7.41% | 2.60 | 2.80 | 2.50 | 2.50 | 2.62 | 2.50 | 417,300 |   |  			
            | 2/21/2017 | -0.20 / -6.90% | 3.10 | 3.10 | 2.70 | 2.70 | 2.89 | 2.70 | 1,505,000 |   |  
            | 2/20/2017 | +0.20 / +7.41% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 130,200 |   |  			
            | 2/17/2017 | +0.20 / +8.00% | 2.70 | 2.70 | 2.70 | 2.70 | 2.70 | 2.70 | 319,100 |   |  
            | 2/16/2017 | +0.20 / +8.70% | 2.40 | 2.50 | 2.40 | 2.50 | 2.49 | 2.50 | 332,850 |   |  			
            | 2/15/2017 | +0.10 / +4.55% | 2.20 | 2.40 | 2.20 | 2.30 | 2.29 | 2.30 | 361,200 |   |  
            | 2/14/2017 | -0.20 / -8.33% | 2.40 | 2.40 | 2.20 | 2.20 | 2.27 | 2.20 | 179,900 |   |  			
            | 2/13/2017 | 0.00 / 0.00% | 2.40 | 2.50 | 2.20 | 2.40 | 2.30 | 2.40 | 197,410 |   |  
            | 2/10/2017 | +0.20 / +9.09% | 2.30 | 2.40 | 2.30 | 2.40 | 2.36 | 2.40 | 620,000 |   |  			
            | 2/9/2017 | 0.00 / 0.00% | 2.10 | 2.30 | 2.10 | 2.20 | 2.20 | 2.20 | 208,500 |   |  
            | 2/8/2017 | +0.10 / +4.76% | 2.10 | 2.30 | 2.10 | 2.20 | 2.21 | 2.20 | 151,400 |   |  |