Investors may be getting nervous about Progress Energy's (PGN -0.4%) ability to complete its...

|By:, SA News Editor

Investors may be getting nervous about Progress Energy's (PGN -0.4%) ability to complete its merger with Duke Energy (DUK +0.6%), announced in Jan. 2011. PGN stock now trades at a 4.15% discount to the price implied by the deal terms, and ISI Group speculates regulatory conditions might derail the deal, placing the odds as high as 50% while estimating the market has priced in 20%.