"Chinese exports were better-than-expected and imports were slightly worse, but both continued to decline in year-on-year terms," IG's market analyst, Angus Nicholson, said in a report on Tuesday.
"It was basically a fairly mixed report, but with last week's impressive rally starting to look stretched, mixed Chinese data was taken as bad Chinese data."
In the U.S., traders will await quarterly earnings from Dow Jones industrial average components Intel and JP Morgan Chase after the bell.
Earlier in the day, fellow Dow component, Johnson & Johnson, reported earnings that beat but missed on revenue. Separately, the firm announced a $10 billion share repurchase. Shares traded mildly lower in pre-market trade.
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S&P 500-listed corporations are expected to post a 5.3 percent decline in third quarter 2015 earnings growth, the first third-quarter decline in six years, according to consensus data from S&P Capital IQ. However, excluding the energy sector drag of a sharp negative 65.6 percent, S&P 500 earnings growth would be 2.7 percent.