Delphi Automotive ( DLPH) was a new buy for Paulson in the fourth quarter, and a big one; the 51.7 million-share position comprises 8% of the Paulson & Co. portfolio, its third-largest holding. Delphi was also a new buy for David Tepper's Appaloosa Management, with a 229,240-share position, and David Einhorn's Greenlight Capital, with 8.2 million shares. Stock Overview: Delphi, a global vehicle components manufacturer, provides electrical and electronic, powertrain, safety and thermal technology solutions to the global automotive and commercial vehicle markets.It has a market cap of $9.85 billion. The stock, which has a short interest ratio of 3.1, had traded in a 52-week range of $19.22 to $32.98 and closed up $1.69, or 5.6%, at $31.70 on Thursday. Analyst Ratings: Of eight analysts covering the stock, seven rate it a buy, and one rates it a hold. To see these stocks in action, check out the 8 Stocks John Paulson Loves, and also dip into John Paulson's top 30 holdings.