Upgrade surge: Dropbox shares rose 14 percent to $36.12 Thursday after it said earlier in the week that it would roll out upgrades on its storage technology that would expand its applications. The shares closed Friday at $39.60.

 

Good bet: Dave & Buster’s Entertainment Inc. soared 13.9 percent to $54.50 Tuesday after reporting revenue that beat estimates and appointing a new chief executive. The restaurant-and-gaming company said that income from both food and gaming rose. Shares closed the week at $55.40.

 

Not-so-great expectations: Michaels shares slumped 14 percent to $18.86 Thursday after the retailer’s earnings outlook fell short of expectations. Shares finished Friday at $18.

Healthy gain: Physician services provider Envision Healthcare rose 2.4 percent to $44.70 Monday after KKR agreed to buy it for about $10 billion. The stock closed Friday at $44.67.

 

Cruising: Royal Caribbean Cruises rose 4.4 percent to $112.73 Thursday after it agreed to buy a two-thirds stake in Silversea Cruises for about $1 billion. Shares closed the week at $114.51.

 

Building momentum: Sheetrock maker USG Corp gained 3.8 percent to $42.99 Monday after it accepted a $7 billion cash offer from German construction products maker Gebr Knauf KG following three months of back-and-forth negotiations. The shares closed the week at $43.18.