The SPDR S&P Aerospace & Defense ETF (NYSEARCA: XAR ) provides exposure to 38 U.S. Aerospace & Defense stocks, as determined by Global Industry Classification Standards. Since it follows a modified equal weighting scheme, XAR partially solves some diversification issues common to its peers, namely the iSharesThe Sunday Investor has completed all the educational requirements for the Chartered Investment Manager designation and is on track to become a licensed options and derivatives trading advisor. Focusing ...