Stocks that moved substantially or traded heavily Monday:
Groupon Inc., up 47 cents to $4.83
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Recode reported that the online coupon company is looking for a buyer.
Twitter Inc., down $2.51 to $44.14
The Washington Post reported that the company suspended more than 70 million suspicious accounts in May and June.
Starbucks Corp., up 92 cents to $49.90
Citing the environmental threat to oceans, the coffee chain said it will eliminate plastic straws from all its locations within two years.
Helen of Troy Ltd., up $12.90 to $114.85
The consumer-products company reported stronger revenue in spring, especially in online sales.
Anadarko Petroleum Corp., up $1.52 to $75.18
The company expanded its stock buyback program by $1 billion, to $4 billion.
CTI BioPharma Corp., down 72 cents to $4.48
The drugmaker said a trial for a treatment of non-Hodgkin lymphoma didn't achieve its goals.
JPMorgan Chase & Co., up $3.22 to $107.28
Financial stocks rose as bond yields moved higher, which allows banks to charge higher rates on loans.
NextEra Energy Inc., down $4.99 to $165.32
Shares in utilities and other high-dividend companies fell as bond yields rose, which makes those stocks less appealing to income investors.