Stocks that moved substantially or traded heavily on Wednesday:
Anadarko Petroleum Corp., up $7.41 to $71.40
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The oil company is being offered $57 billion by Occidental Petroleum in a bidding war against Chevron.
eBay Inc., up $1.85 to $38.52
The e-commerce company surprised investors with solid profit and revenue during the first quarter and raised its forecast for the year.
AT&T Inc., down $1.31 to $30.79
The telecommunications company's revenue fell short of forecasts as it deals with some subscriber losses.
Flir Systems Inc., up $2.77 to $53.42
The imaging and surveillance systems company reported better-than-anticipated first-quarter results and a solid forecast.
Teradyne Inc., up $3.40 to $47.99
The wireless product and data storage company beat first quarter profit and revenue forecasts and gave investors a solid outlook.
iRobot Corp., down $30.15 to $100.42
The robotics technology company's revenue fell short of Wall Street forecasts.
RPC Inc., down $2.29 to $10.60
The oil and gas services company reported weak first quarter results and slashed its dividend.
SAP SE, up $14.28 to $129.08
Activist investors at Elliott Management disclosed a $1.3 billion stake in the business software company.