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                    Closing price on 1/22/2010
                 |  |  
    
        |           
                
                    | Open | 11.00 |  
                    | High | 11.70 |  
                    | Low | 11.00 |  
                    | Volume | 57,800 |  
                    | Split-adjusted Price | 7.96 |  
                
             | 
 |  BTS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/22/2010 | 0.00 / 0.00% | 11.00 | 11.70 | 11.00 | 11.70 | 11.70 | 7.96 | 57,800 |   |  
            | 1/21/2010 | 0.00 / 0.00% | 11.50 | 11.90 | 11.50 | 11.70 | 11.70 | 7.96 | 67,600 |   |  			
            | 1/20/2010 | -0.10 / -0.85% | 11.70 | 11.90 | 11.60 | 11.70 | 11.70 | 7.96 | 45,900 |   |  
            | 1/19/2010 | 0.00 / 0.00% | 11.70 | 11.80 | 11.70 | 11.80 | 11.80 | 8.03 | 56,200 |   |  			
            | 1/18/2010 | -0.10 / -0.84% | 11.50 | 11.80 | 11.50 | 11.80 | 11.80 | 8.03 | 64,000 |   |  
            | 1/15/2010 | 0.00 / 0.00% | 11.90 | 11.90 | 11.70 | 11.90 | 11.90 | 8.10 | 54,800 |   |  			
            | 1/14/2010 | -0.10 / -0.83% | 12.40 | 12.40 | 11.50 | 11.90 | 11.90 | 8.10 | 190,600 |   |  
            | 1/13/2010 | +0.20 / +1.69% | 11.60 | 12.00 | 11.60 | 12.00 | 12.00 | 8.17 | 57,500 |   |  			
            | 1/12/2010 | -0.20 / -1.67% | 12.00 | 12.30 | 11.60 | 11.80 | 11.80 | 8.03 | 51,900 |   |  
            | 1/11/2010 | -0.20 / -1.64% | 12.20 | 12.20 | 12.00 | 12.00 | 12.00 | 8.17 | 63,500 |   |  			
            | 1/8/2010 | -0.10 / -0.81% | 12.30 | 12.60 | 12.00 | 12.20 | 12.20 | 8.30 | 74,900 |   |  
            | 1/7/2010 | -0.30 / -2.38% | 12.50 | 12.60 | 11.90 | 12.30 | 12.30 | 8.37 | 46,000 |   |  			
            | 1/6/2010 | -0.40 / -3.08% | 13.10 | 13.20 | 12.50 | 12.60 | 12.60 | 8.58 | 64,900 |   |  
            | 1/5/2010 | +0.20 / +1.56% | 13.30 | 13.50 | 13.00 | 13.00 | 13.00 | 8.85 | 115,700 |   |  			
            | 1/4/2010 | +0.90 / +7.56% | 12.20 | 12.80 | 12.00 | 12.80 | 12.80 | 8.71 | 177,100 |   |  
            | 12/31/2009 | -0.10 / -0.83% | 12.20 | 12.40 | 11.80 | 11.90 | 11.90 | 8.10 | 55,800 |   |  			
            | 12/30/2009 | +0.20 / +1.69% | 11.60 | 12.00 | 11.50 | 12.00 | 12.00 | 8.17 | 55,200 |   |  
            | 12/29/2009 | -0.10 / -0.84% | 12.00 | 12.20 | 11.80 | 11.80 | 11.80 | 8.03 | 38,900 |   |  			
            | 12/28/2009 | -0.30 / -2.46% | 12.50 | 12.50 | 11.80 | 11.90 | 11.90 | 8.10 | 35,900 |   |  
            | 12/25/2009 | +0.30 / +2.52% | 11.90 | 12.20 | 11.50 | 12.20 | 12.20 | 8.30 | 91,200 |   |  			
            | 12/24/2009 | 0.00 / 0.00% | 11.60 | 12.00 | 11.60 | 11.90 | 11.90 | 8.10 | 39,300 |   |  
            | 12/23/2009 | +0.10 / +0.85% | 11.60 | 11.90 | 11.60 | 11.90 | 11.90 | 8.10 | 32,200 |   |  			
            | 12/22/2009 | -0.60 / -4.84% | 12.50 | 12.50 | 11.80 | 11.80 | 11.80 | 8.03 | 34,300 |   |  
            | 12/21/2009 | +0.60 / +5.08% | 12.20 | 12.50 | 11.80 | 12.40 | 12.40 | 8.44 | 114,200 |   |  			
            | 12/18/2009 | +0.40 / +3.51% | 11.40 | 11.80 | 11.40 | 11.80 | 11.80 | 8.03 | 82,900 |   |  
            | 12/17/2009 | +0.10 / +0.88% | 11.30 | 11.40 | 10.90 | 11.40 | 11.40 | 7.76 | 81,300 |   |  			
            | 12/16/2009 | -0.30 / -2.59% | 11.60 | 11.60 | 11.20 | 11.30 | 11.30 | 7.69 | 69,400 |   |  
            | 12/15/2009 | -0.10 / -0.85% | 12.00 | 12.00 | 11.40 | 11.60 | 11.60 | 7.90 | 78,800 |   |  			
            | 12/14/2009 | +0.90 / +8.33% | 11.40 | 11.70 | 11.40 | 11.70 | 11.70 | 7.96 | 75,400 |   |  
            | 12/11/2009 | -0.50 / -4.42% | 11.50 | 11.50 | 10.80 | 10.80 | 10.80 | 7.35 | 476,500 |   |  |