Third-quarter earnings season kicks off in the U.S. this week, with bellwether Alcoa reporting after the market close on Wednesday.
The impact of a stronger U.S. dollar is expected to weigh on profit growth as it drives up the cost of doing business overseas. Given that the majority of companies listed on the benchmark S&P 500 depend on international markets for their revenue, the stronger currency will be a key challenge.
Thomson Reuters data show profit-growth expectations for S&P 500 companies fell to 6.4 percent from 11 percent just two months ago.
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