Sold: Silicon Graphics jumped 29 percent to $7.69 Friday on news that Hewlett Packard Enterprise agreed to buy the computer equipment and services company for about $281 million.
Uptick: Macy's surged 17 percent to $39.70 and Kohl's rose 16 percent to $43.98 Thursday after the department store chains reported quarterly results that beat Wall Street's expectations. Macy's also said it plans to close about 100 stores next year. Macy's shares closed the week at $39.82; Kohl's finished at $44.94.
Scorched: SunPower shares tumbled 30 percent to $10.39 Wednesday after the solar products and service company said its power plant business is struggling amid growing competition and project delays. The stock ended the week at $10.85.
Dose of trouble: Perrigo sank 10.5 percent to $85.10 Wednesday after the pharmaceuticals company cut its guidance for the year, citing growing competition. The stock closed Friday at $87.96.
On the mend: Valeant Pharmaceuticals surged 11 percent to $24.87 Tuesday after the drugmaker stuck by its earnings outlook from earlier this year, despite reporting a wider second-quarter loss. The company also said it is undergoing a restructuring. The stock closed Friday at $24.92.
Back in black: Endo International vaulted 20 percent to $21.84 Tuesday, a day after the medical device maker reported that it returned to profit in the second quarter. The Dublin-based company's shares closed the week at $24.18.
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