Designed to provide broad exposure to the Mid Cap Blend segment of the US equity market, the Vanguard S&P Mid-Cap 400 Index Fund ETF Shares (IVOO) is a passively managed exchange traded fund launched on September 9, 2010.
The fund is sponsored by Vanguard. It has amassed assets over $3.73 billion, making it one of the average sized ETFs attempting to match the Mid Cap Blend segment of the US equity market.
Why Mid Cap Blend
With market capitalization between $2 billion and $10 billion, mid cap companies usually contain higher growth prospects than large cap companies, and are considered less risky than their small cap counterparts. Thus they have a nice balance of growth potential and stability.
Typically holding a combination of both growth and value stocks, blend ETFs also demonstrate qualities seen in value and growth investments.
Costs
Since 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 0.07%, making it one of the cheaper products in the space.
It has a 12-month trailing dividend yield of 1.18%.
Sector Exposure and Top Holdings
ETFs 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 Industrials sector — about 25.5% of the portfolio. Financials and Information Technology round out the top three.
Looking at individual holdings, Technipfmc Plc (FTI) accounts for about 0.87% of total assets, followed by Casey’s General Stores Inc (CASY) and United Therapeutics Corp (UTHR).
The top 10 holdings account for about 6.04% of total assets under management.
Performance and Risk
IVOO seeks to match the performance of the S&P MidCap 400 Index before fees and expenses. The S&P MidCap 400 Index measures the performance of the mid-cap segment of the U.S. equity universe. The Index is a capitalization-weighted index composed of 400 domestic common stocks.
The ETF has added about 15.16% so far this year and is up roughly 19.62% in the last one year (as of 07/13/2026). In the past 52-week period, it has traded between $105.03 and $130.40.
The ETF has a beta of 1.01 and standard deviation of 17.68% for the trailing three-year period, making it a medium risk choice in the space. With about 406 holdings, it effectively diversifies company-specific risk.