Looking for broad exposure to the Small Cap Blend segment of the US equity market? You should consider the First Trust Small Cap Core AlphaDEX ETF (FYX), a passively managed exchange traded fund launched on 05/08/2007.The fund is sponsored by First Trust Advisors. It has amassed assets over $976.55 million, making it one of the average sized ETFs attempting to match the Small Cap Blend segment of the US equity market.Why Small Cap BlendSitting at a market capitalization below $2 billion, small cap companies tend to be high-potential stocks compared to its large and mid cap counterparts, but come with higher risk.Blend ETFs usually hold a mix of growth and value stocks as well as stocks that exhibit both value and growth characteristics.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 0.61%, making it one of the most expensive products in the space.It has a 12-month trailing dividend yield of 1%.Sector Exposure and Top HoldingsEven though ETFs offer diversified exposure that minimizes single stock risk, investors should also look at the actual holdings inside the fund. Luckily, most ETFs are very transparent products that disclose their holdings on a daily basis.This ETF has heaviest allocation to the Financials sector--about 23% of the portfolio. Industrials and Consumer Discretionary round out the top three.Looking at individual holdings, Dillard's, Inc. (class A) (DDS) accounts for about 0.39% of total assets, followed by Calix, Inc. (CALX) and Genworth Financial, Inc. (GNW).The top 10 holdings account for about 3.57% of total assets under management.Performance and RiskFYX seeks to match the performance of the Nasdaq AlphaDEX Small Cap Core Index before fees and expenses. The NASDAQ AlphaDEX Small Cap Core Index is an enhanced index which employs the AlphaDEX stock selection methodology to select stocks from the NASDAQ US 700 Small Cap Index.The ETF has lost about -2.22% so far this year and was up about 13.67% in the last one year (as of 01/17/2022). In the past 52-week period, it has traded between $80.84 and $101.The ETF has a beta of 1.33 and standard deviation of 31.48% for the trailing three-year period, making it a medium risk choice in the space. With about 526 holdings, it effectively diversifies company-specific risk.AlternativesFirst Trust Small Cap Core AlphaDEX ETF carries a Zacks ETF Rank of 3 (Hold), which is based on expected asset class return, expense ratio, and momentum, among other factors. Thus, FYX is a reasonable option for those seeking exposure to the Style Box - Small Cap Blend area of the market. Investors might also want to consider some other ETF options in the space.The iShares Russell 2000 ETF (IWM) and the iShares Core S&P SmallCap ETF (IJR) track a similar index. While iShares Russell 2000 ETF has $65.08 billion in assets, iShares Core S&P SmallCap ETF has $75.33 billion. IWM has an expense ratio of 0.19% and IJR charges 0.06%.Bottom-LineRetail and institutional investors increasingly turn to passively managed ETFs because they offer low costs, transparency, flexibility, and tax efficiency; these kind of funds are also excellent vehicles for long term investors.To 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. Infrastructure Stock Boom to Sweep America A massive push to rebuild the crumbling U.S. infrastructure will soon be underway. It’s bipartisan, urgent, and inevitable. Trillions will be spent. Fortunes will be made. The only question is “Will you get into the right stocks early when their growth potential is greatest?” Zacks has released a Special Report to help you do just that, and today it’s free. Discover 7 special companies that look to gain the most from construction and repair to roads, bridges, and buildings, plus cargo hauling and energy transformation on an almost unimaginable scale.Download FREE: How to Profit from Trillions on Spending for Infrastructure >>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 First Trust Small Cap Core AlphaDEX ETF (FYX): ETF Research Reports Dillard's, Inc. (DDS): Free Stock Analysis Report Genworth Financial, Inc. (GNW): Free Stock Analysis Report Calix, Inc (CALX): Free Stock Analysis Report iShares Russell 2000 ETF (IWM): ETF Research Reports iShares Core S&P SmallCap ETF (IJR): ETF Research Reports To read this article on Zacks.com click here. Zacks Investment Research