With Market on Edge, Investors Look to Tech Trio

With Market on Edge, Investors Look to Tech Trio
Traders and financial professionals work ahead of the opening bell on the floor of the New York Stock Exchange (NYSE), Oct. 19, 2018 in New York City. U.S. stocks were up on Friday morning amid solid corporate earnings reports, following losses on Thursday. Drew Angerer/Getty Images
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SAN FRANCISCO—The pressure is on for Amazon, Alphabet, and Microsoft as they prepare to report quarterly results at a time when confidence in those market leaders looks increasingly fragile and in danger of derailing Wall Street’s rally.

After worries about higher interest rates sparked a steep sell-off in early October and again on Oct. 18, the S&P 500 remains down 5 percent from its Sept. 20 record high close, with top-shelf stocks including Amazon.com Inc., Alphabet Inc., Netflix Inc., and Facebook Inc. showing little of their vitality from recent years.