The leading retail sector has been surprisingly strong despite the high price of gasoline in the United States. The Market Vectors Retail ETF (NYSEARCA:RTH) is finally declining this morning. The important and highly followed RTH is trading lower by 0.34 cents to $41.74 a share. Short term traders should watch for intra-day support around the $41.40, and $40.75 levels.

Now there is a better way to buy a mobile phone in America, and Best Buy (NYSE:BBY) is giving consumers a $50 gift card for the opportunity to prove it. Today, the world`s leading multi-channel retailer of consumer electronics announced that it will give away a $50 Best Buy gift card to any customer who registers and then purchases and activates a mobile phone at Best Buy by Dec. 31, 2012.

Weekly roundup of stocks moving in and out of Joel Greenblatt's Magic Formula® Investing screens.