Hail Lyft: Lyft shares rose 9 percent to $78.29 in their first day of trading Friday as the company capped the first IPO for a U.S. ride-hailing service, establishing its market value at nearly $30 billion.

In gear: CarMax vaulted 9.6 percent to $69.80 Friday after the auto chain's earnings topped Wall Street's forecasts, even as revenue fell short of expectations.

Healthy bounce: WellCare Health Plans jumped 9.9 percent to $254.18 Wednesday after the company agreed to be acquired by rival Centene for $305.39 per share in cash. Shares closed the week at $269.75.

Deal talk: Bed Bath & Beyond soared 27 percent to $17.64 Tuesday after the Wall Street Journal reported that the troubled retailer is being targeted by three activist investors. Shares closed the week at $16.99.

Cable peace: Media company Viacom rose 6 percent to $26.85 Monday after the company reached a carriage deal with AT&T that would avert a blackout of its channels. Shares closed Friday at $28.07.

Tick tock: Watch maker Movado Group jumped 23 percent to $40.06 Thursday after reporting a 34 percent sales jump thanks to its acquisition of fashion watch company MVMT and organic growth that topped 10 percent. Shares closed Friday at $36.38.

Nice fit: Apparel maker PVH Corp. shares rose 14 percent to $127.26 Thursday after beating earnings expectations and saying it would exit its high-end collection of Calvin Klein apparel and shut the label's flagship store on New York's Madison Avenue. Shares closed Friday at $121.95.

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