We are seeing a tremendous number of high PowerRatings stocks over the past few days. The pullback in the broader market has brought a number of stock down into oversold territory - extreme oversold territory in many cases - above the 200-day moving average.

The most attractive of these stocks, based on our historical research, have earned our highest PowerRatings of 9 and 10, and are the sort of stocks that high probability, mean reversion traders should be focusing on as widespread market weakness makes nervous sellers out of many.

Among the widely known, high PowerRatings stocks are names like Starwood Hotels and Resorts ( HOT | Quote | Chart | News | PowerRating). Starwood Hotels and Resorts has a PowerRating of 10 and is the highest PowerRating stock in the S&P 500.

HOT has closed lower for six consecutive trading days. Including the Wednesday close, the stock has closed with a 2-period RSI of less than 2 for three days in a row.

Closing lower for five days in a row is Advanced Micro Devices ( AMD | Quote | Chart | News | PowerRating), which has a PowerRating of 9.

Buyers bidding shares off the lows on Wednesday couldn’t stop AMD from developing a 2-period RSI of just under 5. This marked the third day that AMD closed in oversold territory above the 200-day.

On the opposite end of the dollar price spectrum, Chicago Mercantile Exchange ( CME | Quote | Chart | News | PowerRating) also has earned a PowerRating of 9.

Closing down for six consecutive trading days - and experiencing a plunge of more than 11% over the past two days, CME has spent the past two trading days with a 2-period RSI of less than 1 - an extremely oversold level.

Here are two other 9-rated stocks that traders might want to keep an eye on over the next few days, particularly on intraday weakness.

Research in Motion ( RIMM | Quote | Chart | News | PowerRating) has a PowerRating of 9 and has closed in oversold territory above the 200-day moving average for the past three days in a row.

Expedia.com ( EXPE | Quote | Chart | News | PowerRating) also has a PowerRating of 9. Closing lower for the past four sessions in a row, EXPE has a 2-period RSI of less than 5 as of Wedneday’s close.

Remember that, based on our research, stocks with PowerRatings of 9 have outperformed the average stock by a margin of more than 9 to 1 after five days. Stocks with PowerRatings of 10 have fared even better, besting the average stock by a margin of more than 14 to 1 over the same, short term, time frame.

And for more tips on how to trade PowerRatings stocks, please read Larry Connors’ strategy primer: How to Find the Best Stocks to Trade Every Day.

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Whether you have a trading strategy of your own that could use a boost or are looking for a way to tell the stocks that will move higher in the short term from the stocks that are more likely to disappoint, our Short Term PowerRatings are based on more than a decade of quantified, backtested simulated stock trades involving millions of stocks between 1995 and 2007. Click the link above or call us at 888-484-8220, extension 1, and start your free trial today.

David Penn is Editor in Chief at TradingMarkets.com.