April 2026 was another month with strong inflows for the U.S. ETF industry.
That said, global equity and bond markets in April 2026 were shaped predominantly by political developments, geopolitical tensions, and evolving expectations for central bank policy, resulting in a generally firm but at times uneven market environment.
Geopolitics remained a central driver throughout the month. The conflicts in Eastern Europe and the Middle East continued to influence market sentiment, particularly through their impact on energy prices and global trade routes. Periods of escalation triggered bouts of risk aversion, leading to temporary declines in equity markets and renewed demand for high-quality government bonds. These moves, however, were often quickly reversed, leaving markets volatile and sensitive to headlines.
At the same time, trade tensions between major economies resurfaced as a relevant factor. Policy signals from the United States, China, and the European Union regarding industrial strategy, technology restrictions, and tariffs contributed to uncertainty among investors. Export-oriented sectors reacted particularly sensitively, while broader markets oscillated between concerns over fragmentation and hopes for pragmatic cooperation.
Domestic politics also played a role. Ongoing election campaigns and fiscal debates in key economies influenced expectations around government spending and debt issuance. In some regions, concerns about rising deficits and increased bond supply put upward pressure on yields, weighing on bond prices and creating intermittent headwinds for equities.
Central banks remained firmly in focus. The US Federal Reserve and the European Central Bank reiterated their cautious, data-dependent stance. Communication from the central banks suggested that while inflation risks had not fully disappeared, policymakers were increasingly attentive to signs of slowing economic momentum. As a result, market expectations shifted repeatedly during the month, with alternating phases of pricing in prolonged tight policy and potential easing later in the year. These shifts contributed to fluctuations in both equity and bond markets.
Despite the complex backdrop, several major equity indices managed to reach new record levels during April. The S&P 500 in the United States, Germany’s DAX, and Japan’s Nikkei 225 all moved higher over the course of the month, reflecting continued investor willingness to allocate to equities. This resilience appeared to be supported by expectations that monetary policy could gradually become less restrictive, even as political and geopolitical risks persisted.
Overall, April 2026 illustrated a market environment in which political decisions and central bank signals often outweighed traditional economic drivers. Volatility remained present, but the underlying tone in equity markets stayed constructive, while bond markets continued to adjust to shifting policy expectations.
From a U.S. ETF industry perspective, the performance of the underlying markets led, in combination with the estimated net flows, to increasing assets under management (from $13,651.1 bn as of March 31, 2026, to $14,900.4 bn at the end of April). At a closer look, the increase in assets under management of $1,249.2 bn for April 2026 was driven by the performance of the underlying markets (+$1,088.5 bn), while the estimated net inflows added $160.8 bn, to the assets under management.
Assets Under Management in the U.S. ETF Industry
As for the overall structure of the U.S. ETF industry, it was not surprising equity ETFs ($11,455.8 bn) held the majority of assets, followed by bond ETFs ($2,445.9 bn), alternatives ETFs ($567.4 bn), commodities ETFs ($366.4 bn), mixed-assets ETFs ($36.4 bn), and money market ETFs ($28.5 bn).
Graph 1: Market Share, Assets Under Management in the U.S. ETF Industry by Asset Type, April 30, 2026
Source: LSEG Lipper
Given the volatile but overall positive market environment over the course of the month, it is only somewhat surprising that the overall assets under management in the U.S. ETF industry hit a new (month end) all-time high at the end of April 2026. When it comes to this, it is noteworthy that the assets under management for all asset types, with the exception of alternatives and commodities ETFs, reached a new (month end) all-time high at the end of April.
ETF Flows by Asset Type
The inflows in the U.S. ETF industry for April (+$160.8 bn overall) were driven by equity ETFs (+$138.9 bn), followed by bond ETFs (+$31.2 bn), mixed-assets ETFs (+$1.6 bn), and money market ETFs (+$0.5 bn). On the other side of the table, commodities ETFs (-$1.6 bn) and alternatives ETFs (-$9.8 bn) faced outflows.
Graph 2: Estimated Net Sales by Asset Type, April 1 – April 30, 2026 (USD Billions)
Source: LSEG Lipper
Given the market environment, it was not surprising to see that equity ETFs enjoyed the highest estimated net inflows over the course of April. That said, it was surprising to see outflows from commodities and alternatives within the volatile but positive market environment over the course of the month.
Assets Under Management by Lipper Global Classifications
In order to examine the U.S. ETF markets in further detail, a review of the Lipper global classifications will lead to more insights on the structure and concentration of assets within the U.S. ETF industry. At the end of April 2026, the U.S. ETF market was split into 136 different Lipper global classifications. The highest assets under management at the end of April were held by funds classified as Equity U.S. ($6,228.8 bn), followed by Equity Global ex U.S. ($1,207.6 bn), Equity U.S. Small & Mid Cap ($1,098.7 bn), Bond USD Medium Term ($619.6 bn), and Equity U.S. Income ($526.7 bn). These five classifications accounted for 64.97% of the overall assets under management in the U.S. ETF segment, while the 10-top classifications by assets under management accounted for 77.45%.
Overall, 15 of the 136 peer groups each accounted for more than 1% of assets under management. In total, these 15 peer groups accounted for $12,541.1 bn, or 84.17%, of the overall assets under management.
Graph 3: Ten Largest Lipper Global Classifications by Assets Under Management, April 30, 2026 (USD Billions)
Source: LSEG Lipper
In addition, it was noteworthy that the rankings of the largest classifications saw some movement in single positions over the last few years. As the positions of the classifications had been quite stable in the past, this indicates that U.S. investors use ETFs to trade according to their market views. Even as some of these positions might be core holdings, once investors got into risk-off mode they also reduced their exposure to core asset classes.
Despite the fact that the rankings at the top of the table show some changes from time to time, these numbers show that the assets under management by Lipper global classifications continued to be highly concentrated in the U.S. ETF industry.
The peer groups on the other side of the table showed some funds in the U.S. ETF market are quite low in assets and their constituents may face the risk of being closed in the near future. They are obviously lacking investor interest and might, therefore, not be profitable for their respective fund promoters.
Graph 4: Ten Smallest Lipper Global Classifications by Assets Under Management, April 30, 2026 (USD Billions)
Source: LSEG Lipper
ETF Flows by Lipper Global Classifications
The net inflows of the 10 best-selling Lipper classifications accounted for $147.7 bn. In line with the overall sales trend for April, equity peer groups (+$125.8 bn) led the flows by asset type on the table of the 10 best-selling Lipper global classifications by estimated net inflows. That said, it was not surprising to see six equity classifications on the table of the 10 best-selling classifications for the month given the overall fund flow trend. When it comes to this, it was also not surprising that Equity U.S. (+$81.5 bn) claimed back its position as the best-selling Lipper global classification for April, which might be an additional sign that U.S. investors have switched back into risk-on mode after the market turmoil in March. Equity Sector Information Technology (+$16.5 bn) was the second best-selling classification, followed by Equity Global ex U.S. (+$10.0 bn), Alternative Relative Value (+$7.3 bn), and Equity Global (+$6.9 bn).
Graph 5: Ten Best- and Worst-Lipper Global Classifications by Estimated Net Sales, April 1 – April 30, 2026 (USD Billions)
Source: LSEG Lipper
More generally, these numbers showed the U.S. ETF segment is also highly concentrated when it comes to fund flows by classification—one would expect the flows into ETFs to be concentrated since investors often use ETFs to implement their market views and short-term asset allocation decisions. These products are made and, therefore, are easy to use for these purposes.
On the other side of the table, the 10 peer groups with the highest estimated net outflows for April 2026 accounted for $33.4 bn in outflows. This was way higher compared to the numbers for January (-$16.6 bn) and February (-$9.0 bn), and even somewhat close to the number for March 2026 (-$35.6 bn),which means U.S. investors may still be aligning their portfolios to the new market circumstances.
Alternative Equity Leveraged (-$23.6 bn) was the Lipper classification with the highest outflows for the month. It was bettered by Bond USD Government Short Term (-$1.8 bn), Commodity Energy (-$1.6 bn), Equity Europe (-$1.5 bn), and Equity Sector Consumer Staples (-$1.4 bn).
A view of the list of the 10 Lipper global classifications with the highest estimated net outflows indicates that U.S. investors may have reduced the overall risk in their portfolios. In addition, they might have taken some profits from their investments in leveraged equity funds since investors might have played the recovery rally after the breakout of the conflict between the U.S. and Iran.
Assets Under Management by Promoters
A closer look at assets under management by promoters in the U.S. ETF industry also showed high concentration, with only 134 of the 480 ETF promoters in the U.S. holding assets at or above $1.0 bn, accounting for $14,830.9 bn. The largest ETF promoter in the U.S.—iShares ($4,354.6 bn)—accounted for 29.22% of the overall assets under management. Despite a comfortable lead as largest ETF promoter globally, iShares is somewhat closely followed by Vanguard ($4,261.9 bn), the number-two ETF promoter in the U.S. That said, the two largest ETF promoters in the U.S. have a comfortable lead over the number-three promoter—State Street SPDR ($1,984.4 bn).
Graph 6: The 10 Largest ETF Promoters by Assets Under Management, April 30, 2026 (USD Billions)
Source: LSEG Lipper
The 10-top promoters accounted for 88.71% of the overall assets under management in the U.S. ETF industry. This meant, in turn, the other 470 ETF promoters registering at least one ETF for sale in the U.S. accounted for only 11.29% of the overall assets under management.
ETF Flows by Promoters
Since the U.S. ETF market is highly concentrated when it comes to assets under management by promoter, it was not surprising that eight of the 10 largest promoters by assets under management were among the 10-top selling ETF promoters for April. Vanguard (+$51.8 bn) was the best-selling ETF promoter in the U.S. for the month, ahead of iShares (+$28.2 bn) and State Street SPDR (+$24.6 bn).
Graph 7: Ten Best-Selling ETF Promoters, April 1 – April 30, 2026 (USD Billions)
Source: LSEG Lipper
The flows of the 10-top promoters accounted for estimated net inflows of $146.9 bn. As for the overall flow trend in April, it was clear that some of the 480 promoters (107) faced estimated net outflows (-$25.1 bn in total) over the course of the month.
Assets Under Management by ETFs
There were 5,173 instruments (primary share classes [5,100] and convenience share classes [73]) listed as ETFs registered for sales in the U.S. in the Lipper database at the end of April. Regarding the overall market pattern, it was not surprising assets under management at the ETF level were also highly concentrated. Only 995 of the 5,100 ETFs (primary share classes = portfolios) held assets more than $1.0 bn each. These ETFs accounted for $14,248.9 bn, or 95.63%, of the overall assets in the U.S. ETF industry. The 10 largest ETFs in the U.S. accounted for $4,467.6 bn, or 29.98%, of the overall assets under management.
Graph 8: The 10 Largest ETFs by Assets Under Management, April 30, 2026 (USD Billions)
Source: LSEG Lipper
Estimated Net Flows at ETF Level
A total of 2,590 of the 5,100 ETFs (primary share classes = portfolios) analyzed in this report showed net inflows of more than $10,000 each for April, accounting for inflows of $247.5 bn. This meant the other 2,510 instruments faced no flows, or net outflows, for the month. Upon closer inspection, 344 of the 2,590 ETFs posting net inflows enjoyed inflows of more than $100 m over the course of April—for a total of $214.0 bn. The best-selling ETF for April in the U.S. was Vanguard 500 Index Fund; ETF, which enjoyed estimated net inflows of $25.6 bn. It was followed by State Street SPDR Portfolio S&P 500 ETF (+$15.2 bn) and Invesco QQQ TrustSeries 1 (+$9.5 bn).
Graph 9: The 10 Best-Selling ETFs, April 1 – April 30, 2026 (Euro Billions)
Source: LSEG Lipper
The flow pattern at the fund level indicated there was a lot of turnover and rotation during the month, but it also showed the concentration of the U.S. ETF industry even better than the statistics at the promoter or classification levels since the 10 best-selling ETFs account for 48.87% of the overall inflows.
Given its size and the overall trend for net sales at the promoter level, it was surprising that none of the 10 best-selling funds for April were issued by iShares. Meanwhile, iShares’ main competitor Vanguard issued three of the 10 best-selling ETFs in the U.S., which accounted for estimated net inflows of $33.5 bn.
The views expressed are the views of the author, not necessarily those of LSEG.
This article is for information purposes only and does not constitute any investment advice.
