Jewelry companies team up with IBM on blockchain platform

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AMERICAN AIRLINES (NASDAQ: AAL) Delayed: 17.92 -0.23 (1.27%)
Previous Close $18.15    52 Week High $46.49 
Open $18.46    52 Week Low $24.85 
Day High $18.79    P/E N/A 
Day Low $17.71    EPS $-17.04 
Volume 130,085,042       

International Bus. Machines (NYSE: IBM) Delayed: 289.52 +3.27 (1.14%)
Previous Close $286.25    52 Week High $165.00 
Open $283.14    52 Week Low $116.90 
Day High $290.93    P/E 19.38 
Day Low $282.28    EPS $14.94 
Volume 5,950,176