Six blue-chip stocks aggressively backed by Warren Buffett are on sale on Wall Street as the year draws to a close, mainly due to broad economic factors and stock market fashion. That makes them worth a look,

Warren Buffett reportedly manages about 90% of Berkshire Hathaway's (NYSE: BRK.A) (NYSE: BRK.B) equity securities portfolio, while understudies Todd Combs and Ted Weschler handle the rest. The company does not disclose which investment manager makes each individual trade,

Warren Buffett has made some rather bearish moves in Berkshire Hathaway's (NYSE: BRK.A)(NYSE: BRK.B) stock portfolio in the past few quarters. Most notably, the legendary investor disposed of significant portions of both the Apple and Bank of America investments that have performed extremely well for Berkshire.

Warren Buffett’s Berkshire Hathaway Inc. has been busy over the past week buying stock in an internet domain-name registry company, to extend its stature as the company’s largest shareholder.

VeriSign is ranked 5th in the S&P 500 for the highest profit margin, at about 56%, tied with Nvidia, according to third-quarter financial data.

Though the Oracle of Omaha has been a net seller of stocks for two years, you can be a confident buyer of these three industry-leading businesses in the new year.

Geico, and pension plans of other Berkshire Hathaway units bought nearly $30 million of shares of domain-name registry firm VeriSign.

Warren Buffett has invested more than $74 million in a Reston company best known for controlling internet domains for organizations across the globe.

Both are substantial investments in Berkshire's portfolio. The Bank of America investment is one of the largest, with a $34 billion market value representing a 9.99% stake in the megabank. Ally is a smaller bank, but Berkshire owns 9.5% of it, an investment worth just over $1 billion.