Take a look at some of Wednesday's midday movers:
Barnes & Noble moved higher after its CEO said the company is gaining share in Nook supscriptions.
(Read More: Earnings Season—2 Early Trends Emerge)
Sirius moved higher after the company increased its subscriber outlook for the year.
MetroPCS moved lower after reports that Sprint would hold off on making a counterbid for the company.
Wal-Mart hit a record high. The retailer lined up $400 million in layaway sales in less than a month as it anticipates a strong holiday season.
H&R Block fell after the tax-preparation company said it was looking to sell its bank division in response to changes required by the Dodd-Frank regulations.
OCZ Technology plummeted after the data-storage provider warned of sharply lower quarterly revenue. Separately, the company named director Ralph Schmitt as its new President and CEO.
Helen of Troy lost ground after the housewares and personal-care products company reported weaker-than-expected second-quarter earnings.
Skywest fell after Bank of America Merrill Lynch downgraded the company's stock to "underperform" from "neutral," citing valuation.
Amarin moved lower after the company said the FDA would delay a decision on exclusivity for its fish oil drug Vascepa.
QLIK rose after UBS upgraded the software maker to "buy," citing their “healthy” business.
WABCO moved lower after Robert Baird downgraded the maker of truck brake systems to "neutral" from "outperform." The move comes a day after engine maker Cummins trimmed its 2012 earnings guidance.
AuRico Gold soared after the company decided to sell its Ocampo Mine in Mexico for $750 million and return a significant amount of the proceeds to shareholders.
ESCO Technologies fell after the company lowered its fiscal 2012 earnings guidance.
Darling International lost ground after BMO Capital Markets lowered its rating on the company to "market perform" from "outperform," based on valuation.
Avnet fell after the company lowered its fiscal first-quarter earnings forecasts, citing lower sales.
(Read More: CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
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