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            | 
                    Closing price on 2/24/2017
                 |  |  
    
        |           
                
                    | Open | 2.80 |  
                    | High | 2.80 |  
                    | Low | 2.60 |  
                    | Volume | 486,200 |  
                    | Split-adjusted Price | 2.60 |  
                
             | 
 |  SPI Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  
            | 2/7/2017 | -0.10 / -4.55% | 2.20 | 2.30 | 2.10 | 2.10 | 2.20 | 2.10 | 76,500 |   |  			
            | 2/6/2017 | 0.00 / 0.00% | 2.20 | 2.30 | 2.10 | 2.20 | 2.16 | 2.20 | 229,200 |   |  
            | 2/3/2017 | -0.20 / -8.33% | 2.40 | 2.40 | 2.20 | 2.20 | 2.27 | 2.20 | 93,100 |   |  			
            | 2/2/2017 | +0.20 / +9.09% | 2.10 | 2.40 | 2.10 | 2.40 | 2.20 | 2.40 | 203,100 |   |  
            | 1/25/2017 | +0.10 / +4.76% | 2.00 | 2.20 | 2.00 | 2.20 | 2.10 | 2.20 | 52,800 |   |  			
            | 1/24/2017 | 0.00 / 0.00% | 2.00 | 2.10 | 2.00 | 2.10 | 2.00 | 2.10 | 86,700 |   |  
            | 1/23/2017 | +0.10 / +5.00% | 2.00 | 2.10 | 1.90 | 2.10 | 1.98 | 2.10 | 91,800 |   |  			
            | 1/20/2017 | -0.10 / -4.76% | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 195,400 |   |  
            | 1/19/2017 | +0.10 / +5.00% | 2.00 | 2.10 | 2.00 | 2.10 | 2.01 | 2.10 | 137,000 |   |  			
            | 1/18/2017 | -0.10 / -4.76% | 2.10 | 2.20 | 2.00 | 2.00 | 2.06 | 2.00 | 128,600 |   |  
            | 1/17/2017 | +0.10 / +5.00% | 2.10 | 2.20 | 2.00 | 2.10 | 2.08 | 2.10 | 72,200 |   |  			
            | 1/16/2017 | -0.10 / -4.76% | 2.10 | 2.30 | 2.00 | 2.00 | 2.18 | 2.00 | 290,800 |   |  
            | 1/13/2017 | -0.10 / -4.55% | 2.20 | 2.20 | 2.10 | 2.10 | 2.20 | 2.10 | 142,700 |   |  			
            | 1/12/2017 | 0.00 / 0.00% | 2.10 | 2.20 | 2.10 | 2.20 | 2.12 | 2.20 | 29,200 |   |  
            | 1/11/2017 | -0.10 / -4.35% | 2.20 | 2.20 | 2.10 | 2.20 | 2.18 | 2.20 | 48,100 |   |  			
            | 1/10/2017 | +0.20 / +9.52% | 2.20 | 2.30 | 2.20 | 2.30 | 2.20 | 2.30 | 26,519 |   |  
            | 1/9/2017 | 0.00 / 0.00% | 2.10 | 2.30 | 2.10 | 2.10 | 2.21 | 2.10 | 199,700 |   |  |