If you're interested in broad exposure to the Small Cap Growth segment of the US equity market, look no further than the SPDR S&P 600 Small Cap Growth ETF (SLYG), a passively managed exchange traded fund launched on 09/25/2000.The fund is sponsored by State Street Global Advisors. It has amassed assets over $2.17 billion, making it one of the larger ETFs attempting to match the Small Cap Growth segment of the US equity market.Why Small Cap GrowthSitting 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.While growth stocks do boast higher than average sales and earnings growth rates, and they are expected to grow faster than the wider market, investors should note these kinds of stocks have higher valuations. Further, growth stocks have a higher level of volatility associated with them. Compared to value stocks, growth stocks are a safer bet in a strong bull market, but don't perform as strongly in almost all other financial environments.CostsInvestors should also pay attention to an ETF's expense ratio. Lower cost products will produce better results than those with a higher cost, assuming all other metrics remain the same.Annual operating expenses for this ETF are 0.15%, making it one of the least expensive products in the space.It has a 12-month trailing dividend yield of 0.78%.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 to the Information Technology sector--about 20.80% of the portfolio. Healthcare and Industrials round out the top three.Looking at individual holdings, Omnicell Inc. (OMCL) accounts for about 1.49% of total assets, followed by Chart Industries Inc. (GTLS) and Innovative Industrial Properties Inc (IIPR).The top 10 holdings account for about 11.44% of total assets under management.Performance and RiskSLYG seeks to match the performance of the S&P SmallCap 600 Growth Index before fees and expenses. The S&P SmallCap 600 Growth Index measures the performance of the small-capitalization growth sector in the U.S. equity market. The selection universe for the S&P SmallCap 600 Index includes all U.S. common equities listed on the NYSE, NASDAQ Global Select Market, NASDAQ Select Market and NASDAQ Capital Market with market capitalizations between $250 million and $1.2 billion.The ETF has lost about -12.99% so far this year and is down about -6.06% in the last one year (as of 02/23/2022). In the past 52-week period, it has traded between $79.77 and $96.13.The ETF has a beta of 1.15 and standard deviation of 28.58% for the trailing three-year period, making it a medium risk choice in the space. With about 339 holdings, it effectively diversifies company-specific risk.AlternativesSPDR S&P 600 Small Cap Growth 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, SLYG is an excellent option for investors seeking exposure to the Style Box - Small Cap Growth segment of the market. There are other additional ETFs in the space that investors could consider as well.The iShares Russell 2000 Growth ETF (IWO) and the Vanguard SmallCap Growth ETF (VBK) track a similar index. While iShares Russell 2000 Growth ETF has $10.09 billion in assets, Vanguard SmallCap Growth ETF has $13.60 billion. IWO has an expense ratio of 0.24% and VBK charges 0.07%.Bottom-LineWhile 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.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. 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 SPDR S&P 600 Small Cap Growth ETF (SLYG): ETF Research Reports Omnicell, Inc. (OMCL): Free Stock Analysis Report Chart Industries, Inc. (GTLS): Free Stock Analysis Report iShares Russell 2000 Growth ETF (IWO): ETF Research Reports Vanguard SmallCap Growth ETF (VBK): ETF Research Reports Innovative Industrial Properties, Inc. (IIPR): Free Stock Analysis Report To read this article on Zacks.com click here.