Big sale: Warehouse club operator Costco Wholesale rose 3 percent, to $152.51 Friday after it reported a better-than-expected profit as it benefited from lower credit card fees and shoppers who spent more on appliances, electronics and hardware.
Thank goodness: ConAgra Foods rose 7 percent to $46.27 Thursday after its profit surpassed analysts' forecasts. The company has sold off several brands to focus on product lines like Chef Boyardee and Hebrew National. ConAgra shares finished the week at $47.11.
Cell off: Intra-Cellular Therapeutics plunged 63 percent, to $15.49 Thursday after the drug developer said an experimental schizophrenia treatment failed in a late-stage clinical trial, as the drug did not work any better than a placebo. The stock closed Friday at $15.24.
Tossing and turning: Tempur Sealy International tumbled 24 percent to $56.77 Wednesday after the company said third-quarter sales aren't meeting its expectations. It expects revenue to fall as much as 3 percent this year. Tempur Sealy shares closed the week at $56.74.
Good chemistry: Specialty chemicals maker Chemtura climbed 15 percent to $32.52 Monday after it agreed to be bought by Germany's Lanxess. Lanxess is paying a 19-percent premium. Chemtura stock closed the week at $32.81.
Fly a kite: Kite Pharma shares jumped 8 percent to $59.48 Tuesday after the company reported positive results from a study of its experimental lymphoma drug. The stock closed the week at $55.86.
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