During continued volatility in oil prices, federal regulators said yesterday that they had been investigating crude oil trading, storage and transportation for the past six months with a focus on possible "futures market manipulation."

LONDON (Reuters) - Increased volatility grips stock markets, big investment banks tot up losses from a credit market seizure and jobs are slashed -- being a trader has seldom been more stressful.

NEW YORK -- Wall Street capped a week of remarkable volatility with a big advance Thursday that left stocks higher for the week but didn't silence all of investors' concerns about the economy and the financial system.

NEW YORK -- Wall Street capped a week of remarkable volatility with a big advance Thursday that left stocks higher for the week but didn't silence all of investors' concerns about the economy and the financial system.

Stock investors smarting from months of volatility are hoping this holiday-shortened week provides signs of a year-end rally.

The Dow plunges again despite good economic news. Oil nears a record high. Some analysts see more volatility ahead. After the stock market's worst week in years, you may be happy to have reached the weekend. But should you be dreading next week?