ESG Investing Statistics (2026)

Sustainable investing is at a strange crossroads. Assets are at record highs, yet money is flowing out and the label itself is under attack. US sustainable funds ended 2025 holding a record $368 billion, but that peak was powered entirely by rising markets, not new investment.

The through-line for 2025 is a widening gap between headline assets and investor behavior. Globally the pool reached about $3.9 trillion even as the segment logged its first-ever year of net redemptions, a split that captures why the ESG story is now so contested.

By the broadest US measure, the US SIF Foundation counted $6.5 trillion in sustainable investing assets under management at the start of 2024, about 12% of the roughly $52.5 trillion in US professionally managed assets (see the table below). That figure spans institutional mandates, not just retail funds.

The narrower, cleaner gauge is fund assets. Morningstar puts global sustainable fund assets at about $3.9 trillion and US sustainable fund assets at $368 billion as of the end of 2025, a fraction of the SIF number because it counts only funds explicitly built around sustainability.

Sustainable investing is overwhelmingly a European phenomenon. Europe holds roughly 86% of global sustainable fund assets, about $3.3 trillion, a total that has tripled since late 2018 and rose about 23% in 2025 alone (see the chart below).

The US is a distant second at about 9%, with the rest of the world making up the remainder. The contrast is stark inside each market: sustainable funds are about 20% of Europe's open-end fund and ETF universe but only around 1% of the US universe.

US sustainable funds went from darling to laggard in the space of a few years. Inflows climbed from $20.6 billion in 2019 to a record near $70 billion in 2021, then collapsed: a slim $3.1 billion in 2022, and outright outflows of $13.3 billion, $19.6 billion, and about $21 billion in 2023, 2024, and 2025 (see the chart and table below).

That makes 2025 the third straight year of US redemptions, and by the end of the year investors had withdrawn money for 13 consecutive quarters. The 2025 total was slightly worse than 2024, a sign the retreat has not yet found a floor.

The pullback went global in 2025. Worldwide sustainable funds shed about $84 billion for the year, the first annual net outflow since Morningstar began tracking the segment in 2018, and a sharp reversal from $38 billion of inflows in 2024.

The pain was concentrated late in the year: roughly $27 billion left in the fourth quarter after about $55 billion in the third. Much of the third-quarter drain came from large UK institutions moving out of pooled ESG funds into bespoke mandates, so not all of it reflects fading conviction.

The performance debate rarely has a clean answer, and 2025 proved it. Sustainable funds beat traditional peers handily in the first half, with a median return of 12.5% versus 9.2%, the strongest outperformance Morgan Stanley had recorded since 2019, helped by heavier weights in Europe and global markets (see the chart and table below).

Then the edge vanished. In the second half, sustainable funds returned a median 5.3% against 5.5% for traditional funds, a narrow miss. The takeaway is that returns swing with sector and regional tilts, not with the ESG label itself.

Over a longer window the sustainable side holds a modest edge. Morgan Stanley calculates that $100 invested in a sustainable fund in December 2018 would be worth about $154 by mid-2025, versus about $145 for a traditional fund over the same stretch.

That gap is real but small, and it is sensitive to the start date and the funds' regional mix. The evidence broadly supports the view that screening for ESG factors has not, on average, forced investors to sacrifice returns over the past several years.

Exchange-traded funds are the fast-growing wrapper for sustainable exposure. ETFGI reported that assets in ESG ETFs listed globally reached a record of about $799 billion, with iShares the runaway leader at roughly $269 billion and a 33.7% market share (figures via ETFGI, flagged).

In the US, the single largest ESG ETF is the iShares ESG Aware MSCI USA ETF at about $13.4 billion, which screens out controversial companies while keeping broad, market-like sector weights. The top three global providers control more than half of all ESG ETF assets.

One of the loudest signals of the backlash is funds quietly shedding the ESG name. At least 1,500 funds, about 28% of the universe and roughly $1.07 trillion in assets, were renamed since the start of 2024, and 383 dropped ESG-related terms in a single quarter of 2025 (see the table below).

Supply is shrinking too. In 2024, 71 US sustainable funds closed and 24 abandoned their ESG mandates, so closures outpaced launches for the first time. The US ESG fund count fell to 595 by September 2024 from 647 at the start of that year.

Public opinion is lukewarm and largely unformed. Gallup finds 37% of Americans are familiar with the term ESG, essentially unchanged since 2021, and 59% offer no opinion on whether the movement is positive or negative, with the rest split 22% positive to 19% negative (see the table below).

Among investors specifically, interest is higher than ownership: 48% say they are interested in sustainable funds, yet only 10% actually own them and just 25% have heard much about them. Women are notably more values-driven than men (71% vs 59% likely to buy values-aligned stocks).

The defining tension in ESG polling is that stated interest far outruns real allocation. Nearly half of investors express interest, but only one in ten hold sustainable funds, a gap driven by low awareness, fee sensitivity, and uncertainty about what the funds actually do.

The workplace may be the swing factor: 70% of employed investors say they would include sustainable funds in their 401(k) if their plan offered them. That suggests demand is latent rather than absent, gated more by access and defaults than by opposition.

ESG has become a partisan flashpoint, and the legal pressure is mounting. Since 2021, 482 anti-ESG bills have been introduced across 42 states, and 21 states have signed 52 of them into law, while state officials have taken 134 separate actions such as divestment threats and letters since 2018 (see the table below).

The disputes now reach the biggest managers. Louisiana and Missouri each pulled about $500 million from BlackRock, and in December 2024 eleven Republican state attorneys general sued BlackRock, State Street, and Vanguard over their handling of ESG in energy holdings.

Part of the churn is regulation, not just politics. New naming rules in Europe and scrutiny from US regulators pushed asset managers to either prove a fund's sustainability credentials or drop the label, which is why so many funds have been renamed rather than closed.

The result is a market that looks like it is shrinking by name count even as underlying assets sit at records. A fund quietly stripping ESG from its title does not mean the strategy changed; often only the marketing did, which complicates any simple read of the trend.

The practical lesson is to look past the label. Sustainable and traditional funds have delivered similar returns over recent years, so choosing an ESG fund has been more about aligning holdings with your values than chasing or sacrificing performance. Check what a fund actually owns and screens for, not just its name.

Watch fees and concentration too: many ESG index funds hold the same mega-cap tech names as the broad market, so they may not diversify as much as expected. If values-based investing matters to you, define the specific issues you care about, then verify a fund's holdings match, rather than trusting a three-letter acronym.