The yield on the benchmark 10-year Treasury note edged down to 1.75 percent from 1.77 percent Monday, a sign that investors were taking money out of stocks and putting it into bonds.
It was the first trading day after the Christmas holiday. Trading volume was low, and European markets were still closed.
Just 2.3 billion shares were traded on the New York Stock Exchange. For the year so far, the average has been around 3.6 billion.
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