If you're interested in broad exposure to the Small Cap Growth segment of the US equity market, look no further than the Vanguard Russell 2000 Growth ETF (VTWG), a passively managed exchange traded fund launched on 09/22/2010.The fund is sponsored by Vanguard. It has amassed assets over $707.98 million, making it one of the average sized ETFs attempting to match the Small Cap Growth segment of the US equity market.Why Small Cap GrowthThere's a lot of potential to investing in small cap companies, but with market capitalization below $2 billion, that high potential comes with even higher risk.Growth stocks have higher than average sales and earnings growth rates. While these are expected to grow faster than the broader market, they also have higher valuations. Further, growth stocks have a higher level of volatility associated with them. When you consider growth versus value, growth stocks are usually the clear winner in strong bull markets but tend to fall flat in nearly all other environments.CostsSince cheaper funds tend to produce better results than more expensive funds, assuming all other factors remain equal, it is important for investors to pay attention to an ETF's expense ratio.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 0.43%.Sector Exposure and Top HoldingsETFs offer a 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 to the Healthcare sector--about 30% of the portfolio. Information Technology and Consumer Discretionary round out the top three.Looking at individual holdings, Plug Power Inc. (PLUG) accounts for about 0.92% of total assets, followed by Caesars Entertainment Inc. (CZR) and Rh (RH).Performance and RiskVTWG seeks to match the performance of the Russell 2000 Growth Index before fees and expenses. The Russell 2000 Growth Index measures the performance of those Russell 2000 companies with higher price/book ratios and higher predicted and historical growth rates.The ETF return is roughly 4.67% so far this year and was up about 24.83% in the last one year (as of 10/11/2021). In the past 52-week period, it has traded between $162.41 and $245.35.The ETF has a beta of 1.21 and standard deviation of 28.83% for the trailing three-year period, making it a high risk choice in the space. With about 1204 holdings, it effectively diversifies company-specific risk.AlternativesVanguard Russell 2000 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, VTWG 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 $11.86 billion in assets, Vanguard SmallCap Growth ETF has $15.73 billion. IWO has an expense ratio of 0.24% and VBK charges 0.07%.Bottom-LineAn increasingly popular option among retail and institutional investors, passively managed ETFs offer low costs, transparency, flexibility, and tax efficiency; they 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. Tech IPOs With Massive Profit Potential In the past few years, many popular platforms and like Uber and Airbnb finally made their way to the public markets. But the biggest paydays came from lesser-known names. For example, electric carmaker X Peng shot up +299.4% in just 2 months. Think of it this way… If you had put $5,000 into XPEV at its IPO in September 2020, you could have cashed out with $19,970 in November. With record amounts of cash flooding into IPOs and a record-setting stock market, this year’s lineup could be even more lucrative.See Zacks Hottest Tech IPOs Now >>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 Vanguard Russell 2000 Growth ETF (VTWG): ETF Research Reports Plug Power, Inc. (PLUG): Free Stock Analysis Report RH (RH): Free Stock Analysis Report Caesars Entertainment, Inc. (CZR): Free Stock Analysis Report iShares Russell 2000 Growth ETF (IWO): ETF Research Reports Vanguard SmallCap Growth ETF (VBK): ETF Research Reports To read this article on Zacks.com click here.