Margin squeeze: Costco Wholesale Corp. dropped 8.6 percent to $207.06 Friday after the warehouse club retailer reported a fall in quarterly gross margins. The company paid higher wages, ramped up investments in its online business and cut prices amid intense competition in the grocery industry.

 

Outlook woes: Apparel company Tailored Brands nose-dived 30.2 percent to $14.05 Thursday after the company cut its forecast for the year. Shares closed Friday at $14.48.

 

GE juiced up: General Electric climbed 7.2 percent to $7.20 Thursday after JPMorgan Chase upgraded the stock to “neutral” from “underweight,” saying the risks and rewards to the stock are balanced. GE has lost almost 60 percent of its value this year after slashing its dividend, replacing its CEO and taking charges. Analysts are concerned that several of its businesses are years away from being profitable. Shares closed Friday at $7.10.

 

Bulking up: Nutrisystem surged 27.5 percent to $43.61 Monday after Tivity Health agreed to buy it for $47 a share in cash and stock. That’s a 37 percent premium from the weight-loss company’s previous closing price. Shares closed Friday at $43.81. Tivity stock, which dropped 32.7 percent to $27.32 on the news, closed the week at $26.59.

 

Bad reviews: Yelp rose 2 percent to $35.27 Monday after one of the online review company’s biggest shareholders said it wants it to add new directors to its board. SQN Investors said the board hasn’t held itself responsible for strategic mistakes. Shares closed the week at $35.24.

 

Bumpy flight: Delta Air Lines fell 4.8 percent to $53.56 Thursday after saying it expects a smaller adjusted profit in 2019 than analysts had hoped. Delta shares closed Friday at $53.51.

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