Remainder: Barnes & Noble shares plummeted 17 percent Friday, to $ 10.04 after the bookstore chain reported a surprise 1 percent decline in quarterly comparable store sales, hurt by store closures, lower online sales and weak demand for its Nook tablets.


Calling for Avon: Avon Products rose 6 percent Friday, to $4.22 as multiple media reports said the beauty products company is considering selling its North American business to private equity firm Cerberus Capital Management.


Auction block bound? Yahoo jumped 7 percent to $36 Wednesday on reports that the company was considering selling its core Internet businesses. Yahoo has struggled for many years to re-energize its business model and its $30 billion stake in Chinese e-commerce giant Alibaba makes up the vast majority of its $33.6 billion market cap. Yahoo shares closed the week at $34.91.


Hit the brakes: Norfolk Southern fell 1 percent to $ 92.06 Friday after the railroad rejected a $28.4 billion offer from Canadian Pacific. Norfolk Southern said the offer was too low and that regulators probably wouldn’t approve it.


Deal woes: Office Depot shares declined 3 percent Monday, to $6.54, after a report of a snag in its merger with rival Staples. The New York Post reported that regulators want more concessions from Staples. Office Depot shares ended the week at $6.64. ­Staples shares closed the week at $12.36 after dropping 2 percent Monday.


Connected: Mobile phone component maker Qualcomm jumped 7 percent, to $52.87 Wednesday after the company announced a patent deal with a Chinese mobile phone maker. Its shares closed the week at $52.34.


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