Southwest Airlines Remains Top S&P 500 Stock By: TalkMarkets June 23, 2016 at 14:58 PM EDT The last time we looked at the S&P 500 was June 2nd. Since then, we have had a 40% turnover in our list. Southwest Airlines retains its number one spot. Read More >> Related Stocks: AFLAC D.R.Horton Global Payments Inc KLA-Tencor Corp Michael Kors Holdings Southwest Airlines TravelersCompanies Tyson Foods Verizon Communications