Wall Street tumbles, indexes post biggest weekly losses since March

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Marina Biotech, Inc. (NASDAQ: MRNA) Delayed: 174.38 +111.42 (176.97%)
Previous Close $62.96    52 Week High $0.52 
Open $116.02    52 Week Low $0.08 
Day High $176.66    P/E N/A 
Day Low $114.46    EPS $-3.80 
Volume 196,219,964