Skip to navigationSkip to main contentSkip to right columnADVERTISEMENTElisabeth KashnerWed, August 12, 2026 at 8:14 PM GMT+2 9 min readETF Investing ToolsThere's no longer such a thing as "the U.S. ETF Market" as the client use cases and behaviors have diverged significantly. All investors seek positive returns, but their time horizons and strategies are dramatically different. The longest-term investors rely on research that points to the odds-on play of buying and holding broad-based, cap-weighted stock and bond ETFs. Other investors extrapolate recent performance with hopes to continue riding a wave.While U.S. ETF assets under management and flows rose to record levels in the first half of 2026, asset managers split the field with inflows from each constituency. Some continue to compete on price, but others are betting that investors will pay a premium for stellar short-term performance.Another Banner (Half) YearETFs serve investors well. Their tax and operating efficiencies and their ability to insulate investors from the tax consequences and market impact of each other's actions continue to make them so appealing that, as of June 30, 2026, U.S. ETF AUM exceeded $15.7 trillion across 5,456 products.01-us-etf-growthSource: FactSetAt the mid-year mark, U.S. ETF flows are on pace to exceed $2 trillion by year end.02-us-etf-flowsSource: FactSetThe equity, fixed income, and asset allocation asset classes have already reached about 75% of 2025's total levels; alternatives have already met the 100% mark. Meanwhile, commodities and currencies saw outflows.ETF Competition—Creating a Segment MapDollar-wise, equity and fixed income comprised 98% of all ETF flows through June 30, 2026. It is within those asset classes that ETF asset managers compete for the attention and dollars of investors of all types.Although nearly 300 ETF issuers offer stock or bond ETFs, the key is that the contest for ETF dollars isn't a 300-way scrum. iShares 0-3 Month Treasury Bond ETF (SGOV-US) competes with ProShares GENIUS Money Market ETF (IQMM-US), but not with iShares Core MSCI Emerging Markets ETF (IEMG-US), Invesco NASDAQ 100 ETF (QQQ-US), or Schwab US Dividend Equity ETF (SCHD-US).Those ETFs each appeal to a specific constituency with a particular use case. Recognizing that, FactSet breaks down the ETF market into basic competitive units that we call segments.A market segment is defined by its restrictions. The first is asset class: most funds specialize in a single type of securities such as stocks (equities), bonds (fixed income), or commodity futures. There are many ways to group those securities:Equities can be classified according to economic sector or industry, market capitalization, position on the value/growth spectrum, or dividend yield.Bonds are differentiated by their issuer type, be it governments, corporations, or a combination of the two.Terms and Privacy PolicyEU DSA contactPrivacy & Cookie SettingsMore Info