Communications services companies ticked down as Sprint remained under pressure.
Sprint may have overcounted subsidized phone users for years, The Wall Street Journal reported. The Federal Communications Commission said the No. 4 U.S. wireless carrier improperly collected "tens of millions" of dollars in federal subsidies for 885,000 Lifeline customers who weren't using the service.
Social media concern Twitter is aims to raise $600 million by selling its first ever batch of unsecured bonds.
Embattled Chinese smart-phone and telecom-equipment maker Huawei Technologies is suing critics in a range of jurisdictions as part of its press-relations blitz, as reported earlier.
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