"That is, unfortunately, the big story," Speiss said.
It's also one of the only stories. There's been little other news to trade on during the holiday season, giving the "fiscal cliff" drama outsized influence. No major companies are scheduled to report earnings this week. The most significant economic indicator scheduled for this week, the government's monthly jobs report, won't be released until Friday.
The yield on the benchmark 10-year Treasury note rose to 1.76 percent from 1.70 percent late Friday, a sign that investors were moving money into stocks.
Some of the best-performing stocks for the year were those that were making up for deep losses in 2011. Homebuilder PulteGroup nearly tripled after falling for five of the previous six years. Appliance maker Whirlpool and Bank of America more than doubled over the year, after falling by double-digit percentages in 2011.
Some of the worst performers of 2012 were Best Buy, Hewlett-Packard and J.C. Penney. All are struggling to keep up with competitors who have adapted more quickly to changing technologies and customer tastes. They were all up for the day, but were all down at least 44 percent for the year.
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