U.S. stock futures were all roughly 0.4% weaker, and there was little in the way of corporate or economic news to guide market sentiment.
"The markets are sort of casting around, looking for direction," said Chris Beauchamp, analyst with IG in London.
He said that investors are still holding back because of anxiety over the Federal Reserve's expected slowdown of bond buying activity.
"It's the thing that continues to worry people," said Beauchamp, who believes that tapering won't start until November at least. "I still think that they're not going to move too soon."
The U.S. Treasury Department will release its monthly budgetary statement at 2 p.m. ET.
It's a light day for corporate earnings. American Apparel ( and )Dillard's (Fortune 500) are slated to report quarterly results after the close of trading. ,
The markets have been in a bit of a funk for the past few trading days as a summer malaise sets in. August tends to be a month of light trading volumes and muted market movements.
All the major U.S. stock indexes declined by roughly 1% last week. But even with the loss of momentum, stocks have still gained between 18% and 23% in 2013.
Apple (Fortune 500) shares rose slightly in premarket trading after the International Trade Commission on Friday , banned Samsung from importing or selling several devices that it said infringe on Apple patents.
European markets were lower in midday trading.
There was a bit more excitement in Asian markets.
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