The U.S. ETF industry enjoyed strong inflows over the course of June. These inflows occur in a market environment which brought a notable shift in the narrative that had dominated global markets for much of the spring. The sharp rise in energy prices triggered by the Middle East conflict began to unwind, but investors remained focused on the implications for inflation, central-bank policy and government borrowing costs. Equity and bond markets reacted differently, reflecting a growing divide between optimism over economic resilience and caution about the longer-term outlook for inflation and interest rates.
The most important development was geopolitical. After months of disruption, the United States and Iran signed a memorandum of understanding on 18 June that included the reopening of the Strait of Hormuz. Oil prices fell sharply, as fears of a prolonged supply shock faded. The agreement improved risk sentiment globally and reduced immediate concerns about energy driven inflation. Markets nevertheless remained alert, as occasional military incidents later in the month showed how fragile the situation remained.
Central-bank policy became the second major driver. In the United States, the Federal Reserve kept rates unchanged and adopted a cautious stance. Investors increasingly concluded that the next move was unlikely to be a rate cut. Expectations of a higher-for-longer rate environment strengthened during the month, pushing bond investors to reassess valuation assumptions.
The European Central Bank moved in the opposite direction. Confronted by inflation above target and concerned about the second-round effects of higher energy costs, the ECB raised interest rates in June. The decision reinforced the view that Europe faced a more difficult inflation challenge than many investors had anticipated earlier in the year.
Japan remained on its gradual path towards policy normalisation. The Bank of Japan maintained its tightening bias after lifting rates in the previous cycle, reflecting inflation that remained above levels seen in the decade before the pandemic. While policy changes were limited during June, investors continued to monitor the implications of higher Japanese rates for global capital flows and sovereign bond markets.
Equity markets produced mixed results. The relief rally triggered by lower oil prices was offset by profit-taking in technology stocks after their strong gains earlier in the quarter. European markets outperformed the United States and Asia. Enthusiasm surrounding artificial intelligence remained a powerful theme, although investors became more selective, favouring companies with visible earnings growth over those trading on ambitious expectations alone.
Bond markets were steadier than earlier in the year. Falling oil prices supported government debt, and yields declined across many developed markets. That said, long-dated bond yields remained high by historical standards as investors demanded compensation for inflation uncertainty and rising public borrowing requirements. However, the prospect of tighter monetary policy, particularly in Europe, prevented a stronger rally. Corporate bonds held up relatively well despite some widening in credit spreads.
By the end of June, markets had shifted from worrying about an energy shock to debating how quickly inflation would recede and whether central banks could avoid keeping policy restrictive for longer. Equities welcomed the decline in oil prices. Bond investors remained less convinced. The difference in outlook defined market behaviour throughout the month.
From a U.S. ETF industry perspective, the estimated net flows led, in combination with the performance of the underlying markets, to increasing assets under management (from $15,716.5 bn as of May 31, 2026, to $15,817.7 bn at the end of June). At a closer look, the increase in assets under management of $101.1 bn for June 2026 was driven by the estimated net inflows $206.1 bn, while the negative performance of the underlying markets deducted $105.0 bn from 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 ($12,272.2 bn) held the majority of assets, followed by bond ETFs ($2,566.3 bn), alternatives ETFs ($603.9 bn), commodities ETFs ($310.3 bn), mixed-assets ETFs ($37.7 bn), and money market ETFs ($27.3 bn).
Graph 1: Market Share, Assets Under Management in the U.S. ETF Industry by Asset Type, June 30, 2026
Source: LSEG Lipper
Given the volatile and on average negative market environment over the course of the month, it is 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 June 2026. When it comes to this, it is noteworthy that the assets under management for equity, bond and mixed-assets ETFs, reached a new (month end) all-time high at the end of June.
ETF Flows by Asset Type
The inflows in the U.S. ETF industry for June (+$206.1 bn overall) were driven by equity ETFs (+$140.0 bn), followed by bond ETFs (+$56.7 bn), alternatives ETFs (+$16.9 bn), and mixed assets ETFs (+$0.7 bn), while money market ETFs (-$1.3 bn), and commodities ETFs (-$6.9 bn) faced outflows.
Graph 2: Estimated Net Sales by Asset Type, June 1 – June 30, 2026 (USD Billions)
Source: LSEG Lipper
Given the market environment, it was surprising to see that equity ETFs enjoyed the highest estimated net inflows over the course of June. That said, it was also surprising to see that U.S. investors sold money market ETFs in this market environment, since money market is considered a safe haven investment.
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 June 2026, the U.S. ETF market was split into 137 different Lipper global classifications. The highest assets under management at the end of June were held by funds classified as Equity U.S. ($6,689.5 bn), followed by Equity Global ex U.S. ($1,262.6 bn), Equity U.S. Small & Mid Cap ($1,184.5 bn), Equity Sector Information Technology ($670.0 bn), and Bond USD Medium Term ($647.3 bn). These five classifications accounted for 66.09% of the overall assets under management in the U.S. ETF segment, while the 10-top classifications by assets under management accounted for 78.08%.
Overall, 16 of the 137 peer groups each accounted for more than 1% of assets under management. In total, these 16 peer groups accounted for $13,527.6 bn, or 85.52%, of the overall assets under management.
Graph 3: Ten Largest Lipper Global Classifications by Assets Under Management, June 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 ETF promoters.
Graph 4: Ten Smallest Lipper Global Classifications by Assets Under Management, June 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 $169.4 bn. In line with the overall sales trend for June, equity peer groups (+$125.0 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 somewhat surprising to see that the table of the 10 best-selling classifications for the month was split between five equity, three bond, and two alternatives classification. When it comes to this, it was not surprising that Equity U.S. (+$76.7 bn) was the best-selling Lipper global classification for June, 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 (+$18.1 bn) was the second best-selling classification, followed by Bond USD Medium Term (+$15.6 bn), Equity Global ex U.S. (+$14.3 bn), and Alternative Equity Leveraged (+$9.4 bn).
Graph 5: Ten Best- and Worst-Lipper Global Classifications by Estimated Net Sales, June 1 – June 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 June 2026 accounted for $21.1 bn in outflows. These outflows could be considered as high compared to the numbers for May 2026 (-$18.0 bn).
Commodity Precious Metals (-$5.7 bn) was the Lipper classification with the highest outflows for the month. It was bettered by Alternative Cryptocurrency (-$4.2 bn), Equity Theme Natural Resources (-$3.5 bn), Equity Sector Consumer Staples (-$1.5 bn), and Money Market USD (-$1.3 bn).
A view of the list of the 10 Lipper global classifications with the highest estimated net outflows indicates that U.S. investors June have reduced the overall risk in their portfolios, as they sold alternative assets and non-core equities.
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 138 of the 496 ETF promoters in the U.S. holding assets at or above $1.0 bn, accounting for $15,744.8 bn. The largest ETF promoter in the U.S.—iShares ($4,586.7 bn)—accounted for 29.00% of the overall assets under management. Despite a comfortable lead as largest ETF promoter globally, iShares is closely followed by Vanguard ($4,506.1 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 ($2,058.4 bn).
Graph 6: The 10 Largest ETF Promoters by Assets Under Management, June 30, 2026 (USD Billions)
Source: LSEG Lipper
With regard to this, it is noteworthy that Vanguard had overtaken iShares as leading ETF promoter by assets under management during June, but was not able to hold that position until the end of the month.
The 10-top promoters accounted for 88.32% of the overall assets under management in the U.S. ETF industry. This meant, in turn, the other 486 ETF promoters registering at least one ETF for sale in the U.S. accounted for only 11.68% 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 June. iShares (+$71.6 bn) was the best-selling ETF promoter in the U.S. for the month, ahead of Vanguard (+$32.7 bn) and State Street SPDR (+$13.2 bn).
Graph 7: Ten Best-Selling ETF Promoters, June 1 – June 30, 2026 (USD Billions)
Source: LSEG Lipper
The flows of the 10-top promoters accounted for estimated net inflows of $167.4 bn. As for the overall flow trend in June, it was clear that some of the 496 promoters (116) faced estimated net outflows (-$10.6 bn in total) over the course of the month.
Assets Under Management by ETFs
There were 5,476 instruments (primary share classes [5,397] and convenience share classes [79]) listed as ETFs registered for sales in the U.S. in the Lipper database at the end of June. Regarding the overall market pattern, it was not surprising assets under management at the ETF level were also highly concentrated. Only 1,026 of the 5,397 ETFs (primary share classes = portfolios) held assets more than $1.0 bn each. These ETFs accounted for $15,141.8 bn, or 95.73%, of the overall assets in the U.S. ETF industry. The 10 largest ETFs in the U.S. accounted for $4,789.4 bn, or 30.28%, of the overall assets under management.
Graph 8: The 10 Largest ETFs by Assets Under Management, June 30, 2026 (USD Billions)
Source: LSEG Lipper
With regard to assets under management on ETF level it is noteworthy that the Vanguard 500 Index Fund; ETF has passed $1.0 trn milestone at the beginning of June 2026, but the ETF could not hold that level over the course of the month, as the ETF faced outflows over the course of the month. To learn more about this, please read: Vanguard S&P 500 ETF (VOO) – The First ETF With More Than $1.0 trn in Assets Under Management.
Estimated Net Flows at ETF Level
A total of 2,833 of the 5,397 ETFs (primary share classes = portfolios) analyzed in this report showed net inflows of more than $10,000 each for June, accounting for inflows of $301.9 bn. This meant the other 2,564 instruments faced no flows, or net outflows, for the month. Upon closer inspection, 385 of the 2,833 ETFs posting net inflows enjoyed inflows of more than $100 m over the course of June—for a total of $266.8 bn. The best-selling ETF for June in the U.S. was iShares Core S&P 500 ETF, which enjoyed estimated net inflows of $43.6 bn. It was followed by Roundhill Memory ETF (+$10.0 bn) and State Street SPDR Portfolio S&P 500 ETF (+$7.7 bn).
Graph 9: The 10 Best-Selling ETFs, June 1 – June 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 44.87% of the overall inflows.
Given its size and the overall trend for net sales at the promoter level, it was surprising that only four of the 10 best-selling funds for June were issued by iShares, accounting for estimated net inflows of $56.5 bn. Meanwhile, iShares’ main competitor Vanguard issued two of the 10 best-selling ETFs in the U.S., which accounted for estimated net inflows of $11.2 bn.
This article is for information purposes only and does not constitute any investment advice.
The views expressed are the views of the author, not necessarily those of Lipper or LSEG.
