Stocks that moved substantially or traded heavily Wednesday on the New York Stock Exchange and the Nasdaq Stock Market:
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MGM Resorts International, down 84 cents to $18.01
The casino operator and six contractors avoided a trial after reaching a settlement deal in a breach-of-contract lawsuit.
FedEx Corp., down $6.48 to $167.78
The shipping services company reported worse-than-expected second-quarter results due partially to a lower-than-expected benefit from falling fuel prices.
XL Group PLC, down $1.35 to $33.66
The insurance and reinsurance company confirmed that it is in preliminary discussions for a potential buyout of Catlin Group Ltd.
Ruby Tuesday Inc., down $1.33 to $6.79
The chain restaurant operator reported fiscal second-quarter sales at restuarants open at least a year and guest counts below its prior guidance.
Volcano Corp., up $6.35 to $17.84
The medical device maker is being bought by Royal Philips for $1.2 billion, with the deal expected to close in the first quarter.
Auspex Pharmaceuticals Inc., up $25.05 to $50.14
The biotechnology company reported positive results from a late-stage study of its potential Huntington's disease treatment.
Digital River Inc., up $7.22 to $24.08
The online commerce technology company reported that it has extended a digital distribution agreement with Microsoft Corp.
Cerus Corp., up $1.08 to $5.86
The biomedical products company said the Food and Drug Administration approved its Intercept system for plasma screening.