Ousted: Wynn Resorts jumped 7.5 percent to $175.39 Wednesday after Steve Wynn resigned as chairman and CEO following accusations of sexual misconduct. Partly because of the overall down market, shares closed Friday at $166.22.

Sweetened offer: Broadcom's shares rose 2.7 percent to $241.77 Monday after it raised its offer for Qualcomm to $121 billion, or $82 per share, up from $103 billion. Qualcomm will review the bid. Broadcom shares closed the week at $235.50. Qualcomm, which dipped 2.7 percent to $64.30 on the news, closed the week at $63.99.

Guidance bounce: Micron Technology shares rose 6 percent to $41.21 Tuesday following days of steady declines after the memory chipmaker boosted its second-quarter guidance and named a new CFO. Shares closed Friday at $40.41.

Board bounce: Wells Fargo dropped 7.3 percent to $59.42 Monday following the Fed's move to freeze the bank's assets at the level where they stood at the end of last year until it can demonstrate improved internal controls. Shares closed Friday at $56.14.

Earnings pop: Snap, the parent of Snapchat, rose 32.4 percent to $18.62 Wednesday after it reported strong user growth and greater-than-expected revenue in the fourth quarter. Shares closed Friday at $18.80.

Nice price: General Motors shares rose 4.3 percent to $41.22 Tuesday after the carmaker posted better-than-expected quarterly results as higher vehicle prices offset a double-digit decline in U.S. sales volume. The carmaker also said it expected a strong performance in 2018. Shares closed the week at $41.55.

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