A smart beta exchange traded fund, the SPDR S&P Aerospace & Defense ETF (XAR) debuted on 09/28/2011, and offers broad exposure to the Industrials ETFs category of the market.

What Are Smart Beta ETFs?

Products that are based on market cap weighted indexes, which are strategies designed to reflect a specific market segment or the market as a whole, have traditionally dominated the ETF industry.

Because market cap weighted indexes provide a low-cost, convenient, and transparent way of replicating market returns, they work well for investors who believe in market efficiency.

However, some investors believe in the possibility of beating the market through exceptional stock selection, and choose a different type of fund that tracks non-cap weighted strategies: smart beta.

By attempting to pick stocks that have a better chance of risk-return performance, non-cap weighted indexes are based on certain fundamental characteristics, or a combination of such.

This area offers many different investment choices, such as simplest equal-weighting, fundamental weighting and volatility/momentum based weighting methodologies; however, not all of these strategies can deliver superior results.

Fund Sponsor & Index

The fund is managed by State Street Global Advisors. XAR has been able to amass assets over $2.98 billion, making it one of the larger ETFs in the Industrials ETFs. XAR seeks to match the performance of the S&P Aerospace & Defense Select Industry Index before fees and expenses.

The 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 TMI tracks all the U.S. common stocks listed on the NYSE, AMEX, NASDAQ National Market and NASDAQ Global Select Market. The Aerospace & Defense Index is a modified equal weight index.

Cost & Other Expenses

Cost is an important factor in selecting the right ETF, and cheaper funds can significantly outperform their more expensive cousins if all other fundamentals are the same.

Operating expenses on an annual basis are 0.35% for XAR, making it one of the least expensive products in the space.

It has a 12-month trailing dividend yield of 0.62%.

Sector Exposure and Top Holdings

ETFs offer diversified exposure and thus minimize single stock risk, but it is still important to delve into a fund's holdings before investing. Most ETFs are very transparent products and many disclose their holdings on a daily basis.

This ETF has heaviest allocation in the Industrials sector - about 100% of the portfolio.

Looking at individual holdings, Boeing Co/the (BA) accounts for about 4.24% of total assets, followed by Northrop Grumman Corp (NOC) and Huntington Ingalls Industrie (HII).