Hard landing: Restoration Hardware Holdings shares dropped 27 percent to $38.15 Thursday after the retailer late the previous day slashed revenue and earnings outlook for the fourth quarter, saying that the uncertain stock market may be dampening consumer spending. Shares closed Friday at $40.43.

Buy, buy, buy: Salesforce.com jumped 9 percent, to $68.20 Thursday after the company issued an upbeat outlook for the year. Investors had been worried about the results of Salesforce after a competitor, Tableau, earlier this month issued a dismal outlook. Salesform.com shares closed Friday at $69.72.

Timber: Lumber Liquidators plunged 20.3 percent, to $11.33 Monday after the U.S. government said people exposed to some types of its laminate flooring were three times as likely to get cancer as it had originally predicted. Shares closed the week at $11.11.

Eat up: Food service company Sysco Corp. shares dropped 5 percent to $42.53 Monday after the company said it will buy Europe's Brakes Group for $3.1 billion. Last year Sysco gave up on an effort to buy U.S. Foods for $3.35 billion after regulators opposed the deal. Sysco shares closed the week at $43.26.

Out of shape: Fitbit, maker of wearable fitness trackers, fell 19 percent, to $13.39 Tuesday after the company issued a weak forecast for 2016, trimming earnings outlook to 2 cents a share, down from 23 cents. Fitbit shares closed the week at $12.15.

Car talk: Shares of Ford Motor fell 4 percent Wednesday, to $11.95 after Morgan Stanley said the U.S. automakers are exposed to risks of a cyclical downturn in major markets, including lower prices in North America and slowing sales in China and Europe. Ford shares closed the week at $12.47.

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