iShares Global 100 ETF (IOO) is an exchange-traded fund managed by BlackRock under the iShares brand that seeks to track the investment results of the S&P Global 100 Index, comprising 100 large-capitalization multinational equities selected by the S&P Committee for their global significance. The ETF provides investors with cap-weighted exposure to mega-cap companies across sectors including information technology, financials, healthcare, and consumer goods; top holdings feature leading multinationals such as Microsoft Corp., Apple Inc., NVIDIA Corp., Amazon.com Inc., and Alphabet Inc. It offers semi-annual distributions, a 0.40% expense ratio, and focuses on developed markets with limited emerging market exposure primarily through South Korea; the fund operates globally, listing on U.S. exchanges like NYSE Arca while maintaining versions on other exchanges including ASX.
Launched on December 5, 2000, the ETF is headquartered in Wilmington, Delaware, as part of BlackRock, Inc., the world's largest asset manager with iShares as its prominent ETF platform. IOO targets institutional and retail investors seeking diversified, low-cost access to blue-chip global equities, emphasizing mega-cap stability over mid-cap or broader large-cap universes. The fund maintains approximately 100-116 holdings, avoids ESG or sustainable strategies, and delivers benchmark performance through passive management.
In recent developments, BlackRock, the issuer of IOO, completed its acquisition of Global Infrastructure Partners (GIP) in September 2024, creating an industry-leading infrastructure platform with over $170 billion in assets under management and expanding private markets capabilities by 40%, though this does not directly alter IOO's equity focus. BlackRock launched currency-hedged versions of IOO and related products on the ASX in early 2025, enhancing accessibility for international investors amid a surge of over 1,000 new U.S. ETF listings that year. The ETF has seen portfolio adjustments reflecting market dynamics, including heavy weighting in technology amid AI optimism, with AUM around $7 billion and ongoing holdings updates as of late 2025.