Tech giant Apple posted earnings of $1.28 a share on revenue of $37.4 billion for the third quarter.
Microsoft posted earnings that fell short of expectations Tuesday while revenue topped Wall Street estimates.
McDonald's quarterly profit slipped about 1 percent as comparable sales in its struggling U.S. business fell, hurt by lower consumer traffic.
But at Verizon Communications, "wireless margins came under just a bit of pressure," a top analyst tells CNBC.
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