Wall Street falls after strong week; Pfizer and Allergan drag

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Allergan Inc (NYSE: AGN) Delayed: 193.02 --0 (-0%)
Previous Close $193.02    52 Week High $322.68 
Open $15.33    52 Week Low $186.34 
Day High $193.02    P/E 45.96 
Day Low $193.02    EPS $4.20 
Volume 43,377       

Pfizer Inc. (NYSE: PFE) Delayed: 24.32 +0.44 (1.84%)
Previous Close $23.88    52 Week High $37.39 
Open $24.15    52 Week Low $28.25 
Day High $24.57    P/E 14.74 
Day Low $24.13    EPS $1.65 
Volume 53,203,200       

Tyson Foods (NYSE: TSN) Delayed: 58.89 +0.46 (0.79%)
Previous Close $58.43    52 Week High $77.05 
Open $57.66    52 Week Low $42.90 
Day High $58.99    P/E 24.85 
Day Low $57.66    EPS $2.37 
Volume 2,173,449