Launched on 10/06/2003, the iShares U.S. Transportation ETF (IYT) is a passively managed exchange traded fund designed to provide a broad exposure to the Industrials - Transportation/Shipping segment of the equity market.While an excellent vehicle for long term investors, passively managed ETFs are a popular choice among institutional and retail investors due to their low costs, transparency, flexibility, and tax efficiency.Sector ETFs are also funds of convenience, offering many ways to gain low risk and diversified exposure to a broad group of companies in particular sectors. Industrials - Transportation/Shipping is one of the 16 broad Zacks sectors within the Zacks Industry classification. It is currently ranked 2, placing it in top 13%.Index DetailsThe fund is sponsored by Blackrock. It has amassed assets over $838.65 million, making it one of the average sized ETFs attempting to match the performance of the Industrials - Transportation/Shipping segment of the equity market. IYT seeks to match the performance of the Dow Jones Transportation Average Index before fees and expenses.The S&P Transportation Select Industry FMC Capped Index (USD) measures the performance of companies from the Industrial Transportation, Airline and General Industrial Services industries of the U.S. equity market.CostsExpense ratios are an important factor in the return of an ETF and in the long term, cheaper funds can significantly outperform their more expensive counterparts, other things remaining the same.Annual operating expenses for this ETF are 0.41%, making it one of the cheaper products in the space.It has a 12-month trailing dividend yield of 1.10%.Sector Exposure and Top HoldingsEven though ETFs offer diversified exposure which minimizes single stock risk, it is still important to look into a fund's holdings before investing. Luckily, most ETFs are very transparent products that 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, Union Pacific Corp (UNP) accounts for about 19.27% of total assets, followed by United Parcel Service Inc Class B (UPS) and Csx Corp (CSX).The top 10 holdings account for about 75.04% of total assets under management.Performance and RiskSo far this year, IYT has lost about -18.33%, and is down about -11.94% in the last one year (as of 07/22/2022). During this past 52-week period, the fund has traded between $207.48 and $279.97.The ETF has a beta of 1.18 and standard deviation of 28.85% for the trailing three-year period, making it a high risk choice in the space. With about 53 holdings, it effectively diversifies company-specific risk.AlternativesIShares U.S. Transportation ETF holds a Zacks ETF Rank of 2 (Buy), which is based on expected asset class return, expense ratio, and momentum, among other factors. Because of this, IYT is an outstanding option for investors seeking exposure to the Industrials ETFs segment of the market. There are other additional ETFs in the space that investors could consider as well.SPDR S&P Transportation ETF (XTN) tracks S&P Transportation Select Industry Index and the U.S. Global Jets ETF (JETS) tracks U.S. Global Jets Index. SPDR S&P Transportation ETF has $521.08 million in assets, U.S. Global Jets ETF has $2.55 billion. XTN has an expense ratio of 0.35% and JETS charges 0.60%.Bottom LineTo learn more about this product and other ETFs, screen for products that match your investment objectives and read articles on latest developments in the ETF investing universe, please visit Zacks ETF Center. Want key ETF info delivered straight to your inbox? Zacks’ free Fund Newsletter will brief you on top news and analysis, as well as top-performing ETFs, each week.Get it free >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report iShares U.S. Transportation ETF (IYT): ETF Research Reports CSX Corporation (CSX): Free Stock Analysis Report Union Pacific Corporation (UNP): Free Stock Analysis Report United Parcel Service, Inc. (UPS): Free Stock Analysis Report U.S. Global Jets ETF (JETS): ETF Research Reports SPDR S&P Transportation ETF (XTN): ETF Research Reports To read this article on Zacks.com click here.