Billionaire fund manager Paul Singer’s Elliott Management Corporation revealed its US stock/option positions this afternoon. The total value of its 13F portfolio is just shy of $4.5 billion. Paul Singer’s biggest bet is, by a large margin, Delphi Automotive (DLPH). Elliott Associates had $500 million and Elliott International had $800 million invested in the stock. The total value of the position is $1.3 billion and it is nearly 30% of Elliott Management’s 13F portfolio.