Billionaire Stephen Mandel’s Top Fund Holdings: Google Inc (GOOG), Priceline.com Inc (PCLN)

$15.5bn clothing empire Ralph Lauren Corp (NYSE:RL) has become a near-$600mm position for Lone Pine; the fund grew its holdings significantly in the first half of 2012, only to taper it by almost 10% towards the end of the year. RL recently drew an upgrade from Morgan Stanley at the start of this year after a number of positive earnings surprises in 2012. Its most recent announcement on the sixth of February showed improved margins and a rise in comparable store sales; the company guided a 2% year-over-year increase in revenue for fiscal 2013 as well. John Griffin of Blue Ridge Capital kept his 1.64mm shares unchanged from Q3 2012 to Q4 2012 (view his portfolio here).

Discount retailer Dollar General Corp. (NYSE:DG) recently announced large expansion plans for 2013, hoping to open 635 stores in the coming fiscal year while striving to improve inventory and cost controls. DG will continue to fight for shoppers against fellow low-cost retailers like Dollar Tree and Family Dollar; the company could also face difficulty retaining customers as Wal-Mart’s pricing and advertising becomes more aggressive. Wall Street remains positive on the stock however, with a bullish price target a year out coming in at 17% above current levels. David Harding of Winton Capital Management has a $5mm investment in DG (see his portfolio here).

Disclosure: I do not own shares of any stocks mentioned in this article.