Global wealth has surged to a staggering $2.6 quadrillion — that is $2,600 trillion — but a major new analysis warns the figure is increasingly built on paper gains rather than genuine economic growth, raising the prospect of a painful financial reckoning ahead.
The McKinsey Global Institute's latest annual global balance sheet report puts worldwide wealth at almost $US1.8 quadrillion for the most recent year, up from $US1.7 quadrillion in 2024. While the headline number suggests a world growing more prosperous, the institute cautions that the balance sheet is becoming dangerously detached from the underlying global economy.
Paper Wealth Outpacing Real Economic Growth
The core concern is that asset valuations — not productive investment — are doing the heavy lifting. Of the global increase in household wealth to $US570 trillion, only 20 per cent came from real capital formation: tangible new investment in machinery, equipment, buildings, infrastructure and intellectual property. The remaining gains came from rising valuations of existing assets, which grew at a rate four percentage points faster than already elevated consumer price inflation.
The report singles out several pressure points. US equities have soared to 2.4 times corporate net assets, with corporate profits now double their share of GDP compared with their 2000 levels. In China, corporate debt has reached 80 per cent of real assets, well above the global average of 50 per cent. Meanwhile, government debt is near all-time highs in the United States and is growing most rapidly in China.
Real estate is the largest single asset class within the balance sheet. Values have been correcting relative to GDP in many parts of the world — though notably not in Australia, at least until very recently.
The Risk of "Hyper-Financialisation"
The McKinsey findings echo warnings that financial analysts have raised for years about what some describe as "hyper-financialisation" — a condition in which the growth of financial assets far outstrips, and becomes disconnected from, real economic activity.
One prominent framework describes the compounding danger that arises when deep financialisation collides with rapid technological disruption — a fusion that can generate an over-accumulation of capital, displace workers through technology, worsen inequality and trigger intense disinflationary pressure. These dynamics, the thinking goes, create social tensions even as headline wealth figures climb.
McKinsey's own conclusions carry similar echoes. When real estate and equity values rise faster than GDP, capital can flow disproportionately toward asset repurchases — sometimes with heavy leverage — starving the real economy of the productive investment needed for long-term growth. For ordinary households, wealth rises on paper, but with heightened risk of sharp corrections. And crucially, rising asset values tend to deepen inequality: existing owners of wealth enjoy large gains while those trying to enter asset markets face ever-higher barriers.
Three Scenarios — and None Is Painless
The report outlines three broad ways the inflated global balance sheet could ultimately correct itself, and only one of them is genuinely benign.
- Productivity-driven growth: A surge in real economic output could validate high valuations and debt levels. Artificial intelligence holds out this promise — but at present, the technology appears to be inflating asset values and leverage more than it is lifting productivity or household incomes.
- Sustained inflation: Prolonged inflation would erode the real value of both assets and debt while pushing nominal GDP higher — a slow, corrosive unwinding rather than a sudden break.
- A balance sheet reset: The most disruptive scenario involves a sharp drop in asset values, significant deleveraging, corporate and personal defaults, and widespread destruction of paper wealth.
With valuations stretched across equities, real estate and credit markets simultaneously, the question for investors, policymakers and households alike is not whether the global balance sheet will eventually correct — but how, and how hard the landing will be.
