In the first half of 2026, the US ETF market absorbed $852 billion, 33% higher than the same period last year. US equity leveraged ETFs reached $203 billion, surging $67 billion since the end of March. As of the end of June, the total size of US money market funds hit a record $7.92 trillion, with institutional funds accounting for $4.83 trillion; the Federal Reserve has initiated rate cuts, with the current rate at 5.5%.
H1 2026 US ETFs Absorb $852 Billion
According to market data, in the first half of 2026, the US ETF market absorbed $852 billion, 33% higher than the same period last year, with an average daily inflow of approximately $8.5 billion over 93 trading days. Fund distribution is extremely uneven: for every dollar flowing into S&P 500 passive funds, 41 cents went into the top ten heavyweight stocks, and 35 cents flowed to the Magnificent Seven tech giants; over the past 30 trading days, only 28% of S&P 500 constituents outperformed the broad index, at an extremely low percentile in 30 years.
Leveraged ETFs Hit a Record $203 Billion
According to market data, in 2026, the size of US leveraged ETFs reached $203 billion, a record high; surging $67 billion (+49%) since the end of March, of which 92% are equity-focused and 70% concentrated in the tech sector. Leveraged ETFs must rebalance daily, buying more on upticks and forced to sell on downticks, forming an automated sell-off mechanism.
Citadel Securities’ model shows that as long as each of the three major indices drops 1%, programmed selling amplifies exponentially, and selling has substantially exceeded the buy demand that the market can absorb. Regarding quantitative CTA strategy long positions, Nasdaq CTA exposure is at its highest since last October, S&P 500 since November, and Russell 2000 at a record since December 2020.
Money Market Funds Reach $7.92 Trillion by End of June
According to market data, as of the end of June 2026, the total size of US money market funds hit a record $7.92 trillion; among them, institutional investors hold $4.83 trillion, highly sensitive to rate changes, viewed by analysts as a potential major force for future large-scale asset rotation.
The current risk-free rate of 5.5% allows these funds to generate returns without taking on volatility; the Federal Reserve has begun cutting rates. Historical data since 1979 shows that in each easing cycle without a deep recession, stocks significantly outperformed cash within 12 months after the rate peak.
Margin Debt Reaches $1.18 Trillion
According to market data, US margin debt has reached $1.18 trillion, growing over the past year at 2.4 times the rate of S&P 500 gains; inflation-adjusted, this leverage level is 6.7 times that before the 1929 crash.
Historically, similar divergences between margin debt and market capitalization occurred only before the 1929, 2000, and 2008 stock market crashes. JPMorgan data shows that in 2026, retail fund inflows have plunged nearly 50% from the January peak; short-term Treasury ETF (SGOV) inflows are at a very high 98th percentile historically.
Tech Giants' CapEx Surges from $1 Trillion to $1.5 Trillion
According to market data, S&P 500 total capital expenditure surged from an annualized $1 trillion to $1.5 trillion, with two-thirds of the incremental spending absorbed by 5-7 tech companies for building AI data center infrastructure, leading to reduced buybacks; among the more than 490 S&P 500 companies outside the tech giants, quarterly net buybacks surged nearly 30% over the past year.
Sovereign wealth funds from the Middle East "Gulf Seven" countries invested approximately $119 billion (up 43% year-on-year) over the past year, focusing on AI computing power underlying assets.
Surveys by BBH and VettaFi show that 66% of global wealth managers clearly prefer active management over passive indexing; 39.3% of institutions plan to increase holdings in small and mid-cap stocks, 35.3% in emerging markets, and 33% in dividend strategies.
FAQs
What is the current size of U.S. money market funds, and which type of investor holds the majority?
According to market data, as of the end of June 2026, the total size of U.S. money market funds reached $7.92 trillion, a record high; institutional investors hold $4.83 trillion, highly sensitive to interest rate changes; the current risk-free rate is 5.5%, and the Federal Reserve has started cutting rates.
How large are U.S. leveraged ETFs currently, and which sectors are they concentrated in?
According to market data, in 2026, U.S. leveraged ETFs reached $203 billion, a record high, up 49% since the end of March; 92% are equity-focused, 70% concentrated in the tech sector; the daily rebalancing mechanism of leveraged ETFs creates automatic selling pressure during declines.
What is the current level of U.S. margin debt, and what historical parallels exist?
According to market data, U.S. margin debt has reached $1.18 trillion, growing over the past year at 2.4 times the rate of S&P 500 gains; inflation-adjusted leverage is 6.7 times that before the 1929 crash; in modern financial history, similar debt-to-market-cap divergences only occurred before the 1929, 2000, and 2008 stock market crashes.
