Stocks that moved substantially or traded heavily Thursday on the New York Stock Exchange and the Nasdaq Stock Market:
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Rite Aid Corp., down $1.23 to $5.41
The retail drugstore chain cut its full-year profit forecast, citing lower reimbursement rates and increased generic drug use.
Pier 1 Imports Inc., down $2.88 to $12.66
The home furnishings and decor retailer reported disappointing second-quarter financial results and cut its outlook for the year.
ConAgra Foods Inc., up $1.47 to $33.48
The food producer's first-quarter profit nearly tripled, topping Wall Street expectations and it reaffirmed its fiscal outlook.
Sony Corp., down 84 cents to $18.04
The electronics company expects its annual loss to swell to $2 billion and canceled dividends for the first time in 50 years.
Continental Resources Inc., down $5.77 to $70.05
The oil and gas exploration and production company expects to spend an additional $500 million in capital expenses this year.
Vivus Inc., up 48 cents to $4.36
The Food and Drug Administration approved a label stating faster effectiveness for the drug developers' impotence drug Stendral.
PDL BioPharma Inc., down 59 cents to $7.89
The patent holder for potential new drugs said it was surprised and offered no reason for the resignation of its auditor.
Marchex Inc., down $3.43 to $4.07
The mobile and call advertising company lowered its 2014 call-driven revenue outlook, citing revised commitments from Allstate.