Jewelry companies team up with IBM on blockchain platform

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AMERICAN AIRLINES (NASDAQ: AAL) Delayed: 14.48 +0.92 (6.78%)
Previous Close $13.56    52 Week High $46.49 
Open $13.86    52 Week Low $24.85 
Day High $14.56    P/E N/A 
Day Low $13.68    EPS $-17.04 
Volume 74,218,037       

International Bus. Machines (NYSE: IBM) Delayed: 214.19 +7.54 (3.65%)
Previous Close $206.65    52 Week High $165.00 
Open $209.28    52 Week Low $116.90 
Day High $216.10    P/E 14.34 
Day Low $206.80    EPS $14.94 
Volume 10,572,825