Out of focus: GoPro, the maker of wearable cameras, declined 7 percent to $11.12 Friday after it reported a 40 percent drop in revenue in the quarter and gave a negative outlook for the holiday season as it struggles to expand its product line beyond athletes and thrill-seekers.

Out of shape: Fitbit, the maker of wearable fitness trackers and other devices, plunged 30 percent to $9.01 Thursday after the company slashed its outlook for the year, citing weak demand for its products. The company also cut its sales forecast for the holiday shopping season. Shares closed the week at $8.71.

Un-liked: Facebook fell 5 percent to $120.65 Thursday after it acknowledged during an otherwise upbeat quarterly earnings report that ad revenue growth was slowing. Facebook shares closed Friday at $120.76.

Deal bounce: Brocade Communications rose 10 percent to $12.33 Wednesday after Broadcom announced it would buy the company for $5.5 billion. Brocade shares closed Friday at $12.28. Broadcom shares, up 1.7 percent to $171.69 on the news, closed the week at $172.17.

Stop the presses: Shares of publisher Tronc plunged 20 percent to $9.65 Tuesday after Gannett said it would stop its bid to buy the company. Tronc shares closed the week at $9.56.

Let's play: Video game publisher Electronic Arts jumped 4.5 percent to $81.31 Wednesday after the company's quarterly results beat analysts' expectations and the company raised its full-year forecast. Electronic Arts shares closed Friday at $80.22.

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