Unappetizing results: Kroger slid 7.5 percent to $21.06 Friday after the supermarket operator’s earnings fell short due in part to aggressive discounts to compete with supermarkets such as Walmart Stores Inc. and Amazon’s newly acquired Whole Foods Market.


Banking slump: XL Group shares declined 6.4 percent to $38.04 Tuesday, leading a broad decline in banking stocks as bond yields fell sharply, which forces interest rates on loans lower. XL Group shares closed the week at $38.61.


Rough seas: Shares in cruise operators fell Tuesday as Hurricane Irma roared toward islands in the northeast Caribbean. Royal Caribbean Cruises dropped 5.1 percent, to $117.89, closing Friday at $117.45. Norwegian Cruise Line, which declined 5.4 percent to $55.37 Tuesday, closed Friday at $55.12.

Deal bounce: Rosetta Stone surged 6.7 percent to $9.83 Tuesday after the company announced a partnership with Univision Communications to launch English-language learning programs for Latino audiences. Shares closed the week at $8.89.


Building on success: RH, formerly known as Restoration Hardware, soared 42 percent to $70.15 Thursday after beating earnings expectations and raising its annual forecasts. RH shares closed Friday at $70.65.


Shortfall: Barnes & Noble sank 10.5 percent to $7.03 Thursday after reporting earnings that missed estimates, including a nearly 5 percent drop in same-store sales as declining nonbook sales outpaced improved book trends during the quarter. The shares finished the week at $6.95.

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