Industrial metals stocks enjoyed a dramatic move up out of 2009 lows, but ever since fears of a second developed-markets recession have emerged they have slumped. Century Aluminum (CENX) is a prefect example of this trouble in commodities stocks like metals and mining investments.

The stock market was a rough place for the first six months of 2010. That goes for stock market beginners to seasoned equity investors with investment experience. To invest your money better going forward, here are the 10 worst stock market performers of the first half of 2010.

Burger King Holdings (BKC) stock hasn’t been good for investors lately. Although BKC stock spiked from March through mid-April, Burger King shares have left investors with a bland taste in their mouths since the beginning of 2008. A dominant McDonald’s continues to hurt BKC sales and Burger King earnings.

General Electric (GE) stock was well known to buy-and-hold investors as a cornerstone stock for decades. But for most of the 21st century GE shares have been dead money. Here are five reasons to sell General Electric stock.

After the stock market's antics in May, things appear to be on the mend in June with the broader market trending upwards. But even simple trading strategies such as long-term capital gains investing must acknowledge that a rising tide does not lift all boats. Some stocks have been pushed down for a reason following the stock market's consolidation last month, and these picks need to be trimmed from your portfolio immediately. Don't overlook a telltale sign like soaring PE ratios or flagging earnings just because you think the bulls are back. Pull the trigger now before it's too late!

Stocks may look cheap here, but many are in danger of further declines. Get our list of stocks to sell.

In the current stock market, investors know that volatility can creep up on them in a hurry and their money can disappear overnight in shaky investments while they're not looking. It's important to remember that buying the best stocks is only part of the battle -- and avoiding poor investments is just as important to your retirement funds as seeking out that big profit maker. That true for all investment strategies, from the most conservative to the most aggressive.

Several years ago, no investor needed convincing that General Electric (GE) was a stock to sell. In fact, for most of this century GE stock shares were dead money. After General Electric peaked at around $60 a share in late 2000, the stock moved steadily downward before finding a comfortable range between $25 and $35 for the most of the decade.

Fedex (FDX), Honda (HMC), Research in Motion (RIMM) and Royal Bank of Scotland (RBS) were among some of the widely held stocks downgraded by Louis Navellier in his latest fundamental stock analysis on April 4, 2010.