Campbell Soup and Twitter are big market movers

NEW YORK (AP) — Stocks that moved substantially or traded heavily Monday on the New York Stock Exchange and the Nasdaq Stock Market:

NYSE

Campbell Soup Co., down $1.15 to $43.39

The maker of canned soups, Pepperidge farm cookies and V8 juice reported fourth-quarter revenue below Wall Street expectations.

Twitter Inc., up $1.30 to $52

The social media company is testing a "buy" button that would allow users to make purchases or donate money through tweets.

Rackspace Hosting Inc., up $2.55 to $39.79

Bloomberg News reported that landline phone-service provider CenturyLink Inc. wants to buy the cloud-computing services company.

Hertz Global Holdings Inc., up 4 cents to $28.50

The car rental company said that its CEO has stepped down, months after it revealed it needed to correct financial statements.

Nasdaq

Yahoo Inc., up $2.22 to $41.81

The Internet company stands to gain from its 23 percent stake in Alibaba Group, which seeks to raise up to $24.3 billion from its IPO.

Multimedia Games Holdings, up $8.37 to $36.15

The maker of video slot machines is being bought by ATM and cash-kiosk maker Global Cash Access Holdings for about $1.2 billion.

Amazon.com Inc, down $4.04 to $342.34

The online retailer slashed the price of its Fire smartphone a day before Apple is expected to unveil its latest version of the iPhone.

Hyperion Therapeutics Inc., down $1.72 to $25.92

The biotechnology company is stopping development of a diabetes drug, citing concerns that some employees manipulated study data.