Poor reception: Shares of Viacom Inc. fell 10 percent to $36.90 on Friday, a day after the owner of MTV and Comedy Central forecast lower sales to U.S. pay-TV companies and streaming video services this quarter.


Smooth seas: Cruise line operator Royal Caribbean rose 3 percent to $116.84 Tuesday after beating analysts’ forecasts and raising its estimates for the year, describing its bookings as “very robust.” Shares closed the week at $119.69.


Slimming down: Under Armour shares dropped 7.8 percent to $18.47 Tuesday after it cut its annual revenue forecast due to sharp discounts that continue to affect its business in North America. The Baltimore company said it will eliminate 280 jobs as part of a restructuring plan. Shares closed Friday at $16.61.


No deal bounce: Charter Communications jumped 5 percent to $389.39 Monday after the Wall Street Journal said Charter isn’t interested in buying Sprint. Shares closed the week at $384.63.


Nobody’s home: Avon plunged 9 percent Thursday to $3.05 after reporting a surprise loss in its latest quarter. Avon also said its CEO will leave in March as the company tries to turn its fortunes around. Shares closed the week at $2.87.


Sales hit: Drugmaker Illumina jumped 11.3 percent to $191.78 Wednesday after beating its earnings forecasts and issuing a strong outlook. Its 10 percent revenue growth easily surpassed the consensus average projections of a 6 percent bump. Shares closed Friday at $194.47.

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