Communications services companies rose as the prospect of a truce between the U.S. and China buoyed telecom-services companies.
Still, U.S. and European governments are likely to remain sensitive to security issues as the 5G networks are developed. The European Union has identified a series of specific security threats posed by foreign vendors of telecommunications equipment, significantly heightening the bloc's scrutiny of suppliers like Huawei Technologies, The Wall Street Journal reported.
Shares of Publicis Groupe plunged Friday after the advertising giant lowered its guidance for the second time in a year, stoking fears about the ad industry's ability to hold its ground against the rise of tech giants.
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