On August 1, 2026, global asset management giant Morningstar released its latest fund flow report, revealing a striking trend: in the first half of this year, U.S. active equity funds saw net outflows of about $30 billion, while passive index funds and fixed-income ETFs attracted more than $50 billion in new money. This data signals a profound structural shift in the U.S. equity investment ecosystem, as investors' asset allocation philosophy moves from "stock picking" to "broad coverage" and from "human judgment" to "rule-driven" approaches.

Active funds keep bleeding, passive investing surges

Morningstar data shows that as of June 30, 2026, U.S. active equity funds recorded net outflows for the 11th consecutive month, with cumulative losses reaching their highest level since 2019. Meanwhile, S&P 500 index ETFs and total-market index funds became the main magnets for capital; Vanguard's S&P 500 index fund alone attracted more than $12 billion in new money in the second quarter. Fixed income shows a similar trend, with investors preferring diversified duration exposure through bond ETFs rather than picking individual securities.

This capital migration is not an isolated case. As early as 2024, passive funds had already surpassed active funds in global assets under management, and 2026 data further reinforces the trend. For retail investors, passive investing attracts significant capital with low fees, high transparency, and predictable beta returns. For institutional investors, improved market efficiency and increased factor crowding have made it significantly harder to generate excess returns through active stock selection.

Why are investors voting with their feet?

Behind the shift in fund flows lies a confluence of multiple factors.

The dual pressure of fees and performance

The average management fee for active funds is about 0.65%, while the average fee for passive index funds has fallen below 0.03%. In the face of compound returns, a fee gap of 0.6 percentage points can create a huge return chasm over long holding periods. More critically, over the past five years, about 70% of large-cap active equity funds have underperformed the S&P 500. Especially in a market dominated by tech giants, active managers' stock-picking advantages have been overwhelmed by the amplifying effect of index heavyweights. When performance fails to justify their value, investors naturally turn to low-cost passive tools.

The "lazy" wisdom of behavioral finance

Behavioral finance points out that investors often overestimate their market-timing ability, but frequent trading actually erodes returns. Passive investing forces investors to abandon timing and follow a "buy and hold" discipline, which perfectly aligns with the core philosophy of long-term value investing — do not predict the market, just make money over time. Morningstar research also shows that over holding periods of 10 years or more, passive index funds have a significantly higher probability of profitability than active funds, further strengthening the market consensus that "passive beats active."

Improved market efficiency and shifting perceptions

With the proliferation of quantitative trading and algorithms, the speed of information dissemination and reflection efficiency have greatly improved. The pricing errors that traditional fundamental analysis could exploit have diminished, squeezing active managers' alpha. Meanwhile, a new generation of investors, such as millennials, raised in the digital-native era, prefer global and multi-asset allocation through low-threshold ETFs rather than relying on fund managers' "black-box decisions."

Industry butterfly effect: from asset managers to corporate decisions

The ongoing shift toward passive investing has profound implications for capital markets. First, stocks with heavy index weights attract more passive inflows, creating a "winner-take-all" Matthew effect that intensifies market concentration risk — the top ten components of the S&P 500 now account for over 35% of the index. Second, the shrinking of active funds is forcing asset managers to transform; some firms are ramping up systematic strategies or "quasi-passive" products to reduce dependence on individual active managers. Finally, corporate decision-making is also affected: passive funds typically do not engage in governance, leaving proxy voting concentrated in the hands of a few index providers, which has sparked debate over corporate ESG policies and governance efficiency.

Rebuilding asset allocation: from "stock picking" to "building blocks"

Faced with the dramatic shift in fund flows, investors should re-examine their portfolio planning. Passification does not mean giving up thinking; it means shifting the focus from individual stock selection to top-level asset allocation design. The following strategies are worth considering:

• Replace all-active holdings with a core-satellite strategy: Allocate 70%-80% of capital to low-cost broad-based index funds (such as S&P 500, Nasdaq 100) as the portfolio's "ballast"; the remainder can be moderately allocated to active thematic funds or sector ETFs to capture localized excess returns.
• Emphasize multi-asset diversification: In addition to equities, increase the allocation to bonds, commodities, REITs and other assets. For example, in the current environment of high and volatile interest rates, short-duration Treasuries and Treasury Inflation-Protected Securities (TIPS) can provide stable coupons and a buffer; gold and other commodities help hedge geopolitical and currency depreciation risks.
• Dynamic rebalancing rather than static allocation: Passive investing does not mean "buy and forget." Periodically (e.g., quarterly) review the proportion of each asset in the portfolio, take partial profits where gains are large, add to positions where losses are deep, and restore target weights to achieve contrarian operations.
• Embrace risk parity and target-date strategies: For investors with limited time, target-date funds offer a one-stop dynamic adjustment plan that automatically reduces equity exposure as retirement approaches; risk parity uses leverage to equalize each asset's risk contribution to the portfolio, preventing a single asset from dominating volatility.

Long-term view: value anchor amid the passive wave

The rise of passive investing is not a total rejection of active management, but a correction of investor behavior. Buffett has repeatedly advised ordinary investors to buy S&P 500 index funds, yet he also stressed that "if the market is highly efficient, we need active thinking even more." In the future, fund flows may form a new balance between active and passive, but the core principle remains unchanged: the long-term return of a portfolio depends more on asset allocation ratios than on individual security selection.

For Chinese investors, the high volatility, high liquidity, and rich ETF ecosystem of the U.S. stock market provide an excellent testing ground for multi-asset allocation and long-term value investing. Whether drawing on the experience of U.S. fund flows or building a "core-satellite" portfolio based on your own risk appetite, the key is to establish a systematic asset allocation framework and adhere to disciplined rebalancing. Only in this way can investors navigate the bull-bear cycles of U.S. equities steadily and achieve long-term compound wealth growth.