Jewelry companies team up with IBM on blockchain platform

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AMERICAN AIRLINES (NASDAQ: AAL) Delayed: 12.82 -0.26 (1.99%)
Previous Close $13.08    52 Week High $46.49 
Open $13.12    52 Week Low $24.85 
Day High $13.34    P/E N/A 
Day Low $12.78    EPS $-17.04 
Volume 55,775,823       

International Bus. Machines (NYSE: IBM) Delayed: 250.04 --0 (-0%)
Previous Close $250.04    52 Week High $165.00 
Open $250.35    52 Week Low $116.90 
Day High $250.95    P/E 16.74 
Day Low $244.61    EPS $14.94 
Volume 3,451,008