Economy: The 16,000 delegates to the two-week-long orgy of self-flagellation known as the Copenhagen Climate Conference want to shrink global…

U.S. labor market improves

Stocks ended little changed Monday, having given back a brief afternoon gain that followed comments from Federal Reserve Chairman Ben Bernanke. The Fed chief said unemployment and other problems would hold the economy to “moderate” improvements and that interest rates are likely to remain low.

The S&P 500 and Nasdaq ended slightly lower on Monday and the Dow was flat, reversing earlier gains, after comments by Federal Reserve Chairman Ben Bernanke sparked jitters about the economic recovery.

Even the prospect of interest rates staying low couldn’t keep buyers in the stock market. Stocks ended little changed Monday, having given back a brief afternoon gain that followed comments from Federal Reserve Chairman Ben Bernanke.

Federal Reserve Chairman Ben Bernanke warned Monday that it’s too soon to know whether the economic recovery will last and again pledged to hold rates at record-low levels for an “extended period.”

Federal Reserve Chairman Ben Bernanke warned Monday that it’s too soon to know whether the economic recovery will last and again pledged to hold rates at record-low levels for an “extended period.”

The S&P 500 and Nasdaq ended slightly lower on Monday and the Dow was flat, reversing earlier gains, after comments by Federal Reserve Chairman Ben Bernanke sparked jitters about the economic recovery.

Shares of Nvidia Corp. and Advanced Micro Devices Inc. jumped Monday after rival Intel Corp. scrapped plans to make a new graphics chip that would have challenged both companies.

The following stocks were among those that moved substantially or traded heavily Monday on the New York Stock Exchange and the Nasdaq Stock Market: