Deere in headlights: Deere & Co. fell 8 percent, to $83.29 Friday after reporting a 37 percent drop in earnings and cutting its full-year outlook because it expects the weak agriculture and energy sectors to continue dragging down equipment sales.

Cored: Apple shares fell 6 percent Friday to close at $105.76, capping a week where shares dropped 10 percent. The decline puts the stock, which traded as high as $134.54 in April, into bear territory. Concerns over its exposure to China and a slowing smartphone sales market are among reasons for the decline.

Drug buy: Valeant Pharmaceuticals fell 3 percent Thursday, to $237.19 after the company said it would spend $1 billion on Sprout Pharmaceuticals, the owner of the first female sexual performance drug approved by regulators. Valeant shares closed the week at $222.19.

Lowering the bar: Wal-Mart sank 3 percent Tuesday, to $70.10, after reporting a quarterly earnings decline and warning that its annual profit will likely be lower than previous estimates, partly a result of the strong dollar. Shares closed the week at $66.54.

Not-so-magic kingdom: Walt Disney fell 5 percent, to $101.36 Thursday after analysts downgraded their outlook on the company over continuing concerns about a cable TV exodus. Disney closed Friday at $98.84.

Deal bump: Zulily saw its shares spike 47 percent Monday, to $18.52 after QVC said it would buy the online flash deal company in a cash-and-stock deal valued at approximately $2.32 billion. While Zulily's sales topped $1 billion last year, its growth has slowed and its shares have been in decline since February 2014. Zulily closed the week at $17.87.

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