For investors seeking momentum, SPDR S&P Aerospace & Defense ETF (XAR) is probably on the radar. The fund just hit a 52-week high and is up 58.9% from its 52-week low price of $137.09/share.But are more gains in store for this ETF? Let’s take a quick look at the fund and the near-term outlook on it to get a better idea of where it might be headed:XAR in FocusThe S&P Aerospace & Defense Select Industry Index represents the aerospace & defense sub-industry portion of the S&P Total Stock Market Index. The S&P ...