Has AMUNDI just launched the future of global equity ETFs?

The problem: how "global" are global ETFs, really?

A global equity ETF like the classic MSCI World or FTSE All-World promises to diversify your investment across dozens of countries. On paper, that's true — but only on paper, because these indices weight each country by the market capitalisation of its listed companies, and in recent years that mechanism has produced an increasingly pronounced concentration in a single country.

According to FTSE Russell data, at the start of 2026 the United States accounted for roughly 62.3% of the entire FTSE All-World index — nearly double the 41% recorded at the end of the 2008-2009 financial crisis. The picture is even more pronounced when looking at the other major global benchmark, the MSCI World: according to the official MSCI factsheet updated as of 31 July 2026, the United States accounts for as much as 72.0% of the index — an even higher level because the MSCI World covers only developed markets and excludes China, India and other emerging markets, which in the FTSE All-World help "dilute" the US weight somewhat. Within the US market itself, concentration runs deeper still: the top 10 stocks in the FTSE USA index alone are worth nearly 40% of the American basket, driven largely by the big technology names tied to artificial intelligence.

The result is that buying "a global ETF" today — whether it tracks the FTSE All-World or the MSCI World, the two most widely used global benchmarks — effectively means buying mostly a handful of US tech giants, with the rest of the world reduced to a marginal footnote — not by explicit choice, but simply as an arithmetic consequence of the weighting mechanism.

How GDP weighting works

The idea behind this new Amundi ETF is as simple as it is radical: instead of letting the market value of listed companies decide a country's weight in the portfolio, it uses a different measure — that country's share of world GDP, calculated from International Monetary Fund data. Each country therefore receives a weight proportional to its contribution to the real global economy among the countries included in the index, not to its stock market capitalisation. Once the country weight is set, individual stocks within that country are still selected and weighted by the traditional criterion, market capitalisation: this isn't an "active" fund picking companies, but a passive ETF that redistributes weight differently across nations.

Here is the three-way comparison, with real, not estimated, data: the actual share each region holds of world GDP, the weight it currently holds in a traditional cap-weighted global ETF, and the actual weight it holds in the Amundi GDP-Weighted fund:

"Share of world GDP" column: real nominal GDP, source International Monetary Fund, World Economic Outlook April 2026 (world GDP $126.3 trillion; Europe figure for the whole continent, most recent aggregate source available). "Weight in the Amundi WGDP ETF" column: official fund data, product sheet updated as of 12/08/2026 (source: Amundi Asset Management). "Cap-weighted" column: composition of a traditional FTSE All-World/Global All Cap ETF, recent indicative data (source: Vanguard). The "Europe" row includes every European country individually reported in each source (for the Amundi fund: Germany, UK, France, Italy, Spain, Netherlands, Turkey, Poland, Switzerland, Ireland, Belgium, Austria, Sweden); very small European markets not broken out individually by either source remain included in the residual "Other countries" row in both columns.

The numbers tell three slightly different stories. The real share of world GDP shows that the United States, while still the largest economy, produces "only" 25.7% of global output — yet it accounts for 62.4% of a traditional ETF. In the Amundi fund, its weight drops to 31.0%: closer to economic reality, but still above its pure GDP share, because the index only redistributes GDP among the countries actually present in the FTSE All-World investable universe (which excludes many smaller economies), proportionally inflating the weight of the largest economies. At the other extreme, China rises from a marginal 2.9% in a traditional ETF to a much more substantial 16.8% in the Amundi fund — a figure now very close to its real share of world GDP (16.5%). Europe as a whole also gains ground (from 15.8% to 22.8%), consistent with what Amundi itself stated at launch: the explicit goal is to give more room to "emerging economies and Europe, areas historically under-represented in market-capitalisation indices despite their contribution to global growth".

A historical perspective: economic powers don't stay on top forever

The reasoning behind a GDP-weighted ETF invites a broader reflection that goes beyond quarterly charts: throughout history, no economic and trading power has remained dominant permanently. Five episodes, far apart in time but following a recurring logic, illustrate this well:

• The Roman Empire — built "global" infrastructure for its time over the course of centuries: roads, ports and a single currency that facilitated trade across the Mediterranean. Its decline also ran through a monetary crisis: the progressive debasement of the denarius to fund military spending triggered inflation and instability, contributing to the Crisis of the Third Century.
• The Republic of Venice — built its power on a trading monopoly, controlling the eastern Mediterranean routes and the spice trade with Asia. Its decline came from a sudden geographic shock: the Portuguese discovery of the Atlantic route to the Indies at the end of the 15th century bypassed Venice entirely and redrew the map of world trade.
• The Spanish Empire — enriched by gold and silver from the Americas in the 1500s, fell into what economists today call the "resource trap": the massive inflow of precious metals generated domestic inflation and discouraged the development of a competitive manufacturing industry, leaving the country dependent on imports just as other European powers were industrialising.
• The Dutch Republic (the Netherlands of the 1600s) — effectively invented modern financial capitalism: the Dutch East India Company (VOC), the world's first stock exchange, and a merchant fleet that dominated the seas made Amsterdam the world's financial and commercial hub for much of the 17th century, before the Anglo-Dutch Wars and the rise of London eclipsed its role.
• The British Empire — rode the Industrial Revolution to build commercial, military and financial dominance on a scale never seen before, controlling a significant share of world trade at the start of the 20th century, with the pound sterling as the world's reserve currency. It ceded that role to the US dollar over the course of the 20th century, particularly after the 1944 Bretton Woods agreements.

The common thread running through these historical cycles is similar: a power emerges through innovation, commercial strength or military might; it builds an advantage that appears structural; and over time, that advantage erodes through a combination of rising new competitors, growing maintenance costs and — often — excessive confidence in its own dominant position.

It isn't possible, or serious, to predict whether and when the United States will follow a similar pattern. The debate among economists is far from settled: on one side are those who point to vulnerability factors (rising public debt, dependence on a handful of tech companies, historically elevated market valuations); on the other are those who stress that the dollar's role as the world's reserve currency, the depth of US capital markets and the country's capacity for innovation remain, to date, without any real alternative at a comparable scale. What history suggests, with more caution, is simply that no dominant position is guaranteed forever — which is why diversification that doesn't depend so heavily on a single country can make structural sense, regardless of any specific forecast about the future of the United States.

Practical considerations before investing

A few practical points to keep in mind about this specific ETF, beyond the conceptual reasoning behind it:

• It's a brand-new fund: launched on 19 May 2026, it still has a relatively small amount of assets under management (around $27 million according to the most recent data) — a small size compared with the large, established All-World ETFs, with possible implications for liquidity and trading spreads in the short term.
• Not yet available everywhere: being a very recent product, it may not yet be included in the regular investment plans of every broker — check availability with your own broker before planning recurring investments.
• It's still an equity ETF: the rebalancing only concerns the weight between countries; it doesn't eliminate the typical volatility of equity markets, nor does it guarantee better returns — it simply distributes country risk differently.
• GDP weighting isn't "risk-free" by itself: it increases exposure to countries and emerging markets that may have different corporate governance standards, market liquidity and regulatory transparency compared with developed markets.

The merits of this approach: tracking the world's real economy

Beyond the specific risks of this particular fund, it's worth revisiting the underlying goal Amundi stated at launch: building an ETF that doesn't chase "whatever the market happens to be rewarding right now", but instead reflects the real weight each economy has in the world. It's a different diversification philosophy from the one we're used to — it doesn't aim to pick the winning country or sector, but to structurally avoid a portfolio depending too heavily on the mood of a single stock market, however dominant it may be today.

For passive, long-horizon investors who would rather "settle for" tracking the real global economy than chase the market's current valuations, this kind of ETF offers a conceptually coherent alternative: it doesn't require predicting which country will perform best in the future, nor does it call for active decisions — it simply redistributes capital in proportion to where global wealth is actually produced, letting real economic growth, over time, drive returns.