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            | 
                    Closing price on 1/28/2011
                 |  |  
    
        |           
                
                    | Open | 39.70 |  
                    | High | 40.00 |  
                    | Low | 39.50 |  
                    | Volume | 3,520 |  
                    | Split-adjusted Price | 10.56 |  
                
             | 
 |  ABT Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/28/2011 | +0.20 / +0.51% | 39.70 | 40.00 | 39.50 | 39.50 | 39.50 | 10.56 | 3,520 |   |  
            | 1/27/2011 | 0.00 / 0.00% | 39.30 | 39.30 | 39.30 | 39.30 | 39.30 | 10.51 | 3,510 |   |  			
            | 1/26/2011 | 0.00 / 0.00% | 39.30 | 39.30 | 39.20 | 39.30 | 39.30 | 10.51 | 370 |   |  
            | 1/25/2011 | -3.60 / -8.39% | 38.50 | 39.50 | 38.50 | 39.30 | 39.30 | 10.51 | 12,510 |   |  			
            | 1/24/2011 | -0.10 / -0.23% | 43.00 | 43.00 | 42.50 | 42.90 | 42.90 | 10.67 | 6,600 |   |  
            | 1/21/2011 | 0.00 / 0.00% | 43.00 | 43.00 | 42.00 | 43.00 | 43.00 | 10.69 | 26,280 |   |  			
            | 1/20/2011 | +0.10 / +0.23% | 43.00 | 43.00 | 43.00 | 43.00 | 43.00 | 10.69 | 17,280 |   |  
            | 1/19/2011 | +0.10 / +0.23% | 43.00 | 43.40 | 42.90 | 42.90 | 42.90 | 10.67 | 11,390 |   |  			
            | 1/18/2011 | -0.70 / -1.61% | 43.00 | 43.00 | 42.80 | 42.80 | 42.80 | 10.64 | 670 |   |  
            | 1/17/2011 | +0.50 / +1.16% | 43.00 | 43.50 | 42.80 | 43.50 | 43.50 | 10.82 | 2,170 |   |  			
            | 1/14/2011 | +0.20 / +0.47% | 43.00 | 43.20 | 42.80 | 43.00 | 43.00 | 10.69 | 9,180 |   |  
            | 1/13/2011 | +0.10 / +0.23% | 42.70 | 42.80 | 42.70 | 42.80 | 42.80 | 10.64 | 190 |   |  			
            | 1/12/2011 | -0.30 / -0.70% | 43.00 | 43.00 | 42.70 | 42.70 | 42.70 | 10.62 | 990 |   |  
            | 1/11/2011 | -0.50 / -1.15% | 43.50 | 43.50 | 43.00 | 43.00 | 43.00 | 10.69 | 1,760 |   |  			
            | 1/10/2011 | +0.50 / +1.16% | 43.00 | 44.00 | 43.00 | 43.50 | 43.50 | 10.82 | 27,800 |   |  
            | 1/7/2011 | +1.00 / +2.38% | 42.00 | 43.00 | 41.60 | 43.00 | 43.00 | 10.69 | 42,840 |   |  			
            | 1/6/2011 | 0.00 / 0.00% | 42.00 | 42.50 | 41.00 | 42.00 | 42.00 | 10.44 | 72,000 |   |  
            | 1/5/2011 | -0.50 / -1.18% | 42.70 | 42.80 | 41.40 | 42.00 | 42.00 | 10.44 | 32,020 |   |  			
            | 1/4/2011 | -0.50 / -1.16% | 43.00 | 43.00 | 42.50 | 42.50 | 42.50 | 10.57 | 1,040 |   |  
            | 12/31/2010 | +0.50 / +1.18% | 41.20 | 43.00 | 41.20 | 43.00 | 43.00 | 10.69 | 20,520 |   |  			
            | 12/30/2010 | +1.00 / +2.41% | 41.20 | 42.50 | 41.00 | 42.50 | 42.50 | 10.57 | 42,210 |   |  
            | 12/29/2010 | -1.40 / -3.26% | 41.00 | 41.50 | 41.00 | 41.50 | 41.50 | 10.32 | 16,000 |   |  			
            | 12/28/2010 | -0.10 / -0.23% | 42.00 | 43.00 | 41.90 | 42.90 | 42.90 | 10.67 | 30,610 |   |  
            | 12/27/2010 | +1.00 / +2.38% | 42.00 | 43.00 | 42.00 | 43.00 | 43.00 | 10.69 | 5,910 |   |  			
            | 12/24/2010 | +2.00 / +5.00% | 40.00 | 42.00 | 40.00 | 42.00 | 42.00 | 10.44 | 2,650 |   |  
            | 12/23/2010 | -0.60 / -1.48% | 41.70 | 41.70 | 40.00 | 40.00 | 40.00 | 9.95 | 13,010 |   |  			
            | 12/22/2010 | -1.40 / -3.33% | 41.40 | 41.70 | 40.50 | 40.60 | 40.60 | 10.10 | 66,510 |   |  
            | 12/21/2010 | -0.50 / -1.18% | 42.50 | 42.50 | 42.00 | 42.00 | 42.00 | 10.44 | 36,540 |   |  			
            | 12/20/2010 | -0.50 / -1.16% | 42.50 | 43.50 | 42.50 | 42.50 | 42.50 | 10.57 | 48,090 |   |  
            | 12/17/2010 | 0.00 / 0.00% | 43.00 | 43.00 | 42.30 | 43.00 | 43.00 | 10.69 | 6,000 |   |  |