Warning sign: Dow dives 380 points

The key benchmark for the tech sector will be Apple (AAPL, Tech30)’s earnings after the bell today. Wall Street expects a huge earnings beat. Anything less than that could be more sign of trouble.

The S&P 500 is slipping 1.4% and the Nasdaq is falling 1.7%.

Factset: FactSet Research Systems Inc. 2015. All rights reserved.

Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved.

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