Stocks that moved substantially or traded heavily Wednesday on the New York Stock Exchange and the Nasdaq Stock Market:
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Orbital Sciences Corp., down $5.10 to $25.27
The space systems company's unmanned rocket bound for the International Space Station exploded moments after liftoff in Virginia.
Electronic Arts Inc., up $1.43 to $38.91
The video game maker reported better-than-expected second-quarter profit and it increased its financial outlook for 2015.
United States Steel Corp., up $1.93 to $40.08
The steel maker reported a narrower third-quarter loss on higher demand and the results beat Wall Street expectations.
InvenSense Inc., down $5.40 to $16.08
The maker of mobile gyroscopes for consumer electronic products reported worse-than-expected second-quarter results.
Facebook Inc., down $4.91 to $75.86
The social media company warned investors that it will spend significantly next year on its workforce and on developing services.
American Realty Capital Properties Inc., down $2.38 to $10
The real estate company said its prior financial reports can't be relied upon after mistakes were intentionally left uncorrected.
The Goodyear Tire & Rubber Co., up $1.18 to $23.03
The tire maker reported a drop in third-quarter profit on lower sales, but the results still beat expectations.
Applied Micro Circuits Corp., down $1.02 to $5.86
The chipmaker narrowed its fiscal second-quarter loss on lower expenses, but the results fell short of expectations.