Tech companies ticked up as a strong earnings week for the sector continued. Google parent Alphabet said increased advertising generated a 24% increase in profits. Earlier in the week, Google's Silicon Valley peers Apple and Facebook similarly impressed investors. Sony Corp. reported a surprising net profit in the April-June quarter on strong PlayStation 4 sales, though it downgraded the outlook for its struggling image-sensor business because of the yen's recent rapid strengthening.

-Rob Curran, rob.curran@dowjones.com

(END) Dow Jones Newswires

July 29, 2016 16:43 ET (20:43 GMT)

Copyright (c) 2016 Dow Jones & Company, Inc.
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