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Tell us what you think: With earnings season in full swing, which sector are you banking on to outperform?

Key Points
  • Around one third of S&P 500 companies are expected to report earnings this week.
  • Some 81.5 percent of S&P 500 companies that have already reported have beat expectations.
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A deluge of earnings is expected stateside this week, with around one third of S&P 500 companies, including Facebook and Boeing, slated to report first-quarter results in the days ahead.

Most companies that have already reported have topped expectations: As of Friday, about 16.5 percent of S&P 500 companies have announced their quarterly earnings, with 81.5 percent of them topping expectations, according to FactSet.

But even with the seemingly good news, the 500-stock index was up around just half a percent last week. That has been attributed to several reasons, including guidance revisions and rising interest rates, among others.

First-quarter results across S&P 500 companies were last estimated by Thomson Reuters I/B/E/S to increase by 20 percent compared to one year ago.

— CNBC's Fred Imbert contributed to this report.