Top 5 Lowest P/E Ratios of the S&P 500

3. NRG Energy, Inc. (NYSE:NRG)

P/E Ratio: 4.05

Number of hedge fund holders: 27

NRG Energy, Inc. (NYSE:NRG) is one of the most notable energy companies in the S&P 500 index. Recently, BofA upgraded NRG Energy, Inc. (NYSE:NRG) to Neutral from Underperform. BofA analysts said that NRG Energy, Inc. (NYSE:NRG)’s valuation has improved after it fell following its announcement to buy Vivint Smart Home (NYSE:VVNT) for $5.2 billion .

As of the end of the third quarter, 27 hedge funds tracked by Insider Monkey reported having stakes in NRG Energy, Inc. (NYSE:NRG). The total value of these stakes was about $1.2 billion.