Emerging market economies are increasingly relying on global investors such as hedge funds, pension funds and insurance firms for their external financing needs, a shift that is leaving them more exposed to sudden capital flight during periods of stress, according to a report by the International Monetary Fund cited by Reuters.

The report highlights a structural transformation in the way emerging markets fund themselves. Over the past two decades, the share of foreign capital coming from portfolio investors has doubled to about 80%, reflecting a retreat by traditional bank lenders in the aftermath of the 2008 Global Financial Crisis. In that time, emerging markets have attracted close to $4 trillion in cumulative inflows, underscoring the scale of dependence on market-based financing.

According to Reuters, the IMF noted that this growing reliance on portfolio flows has delivered clear benefits. Abundant global liquidity has enabled emerging economies to access funding at lower costs and with longer maturities, helping governments and companies manage their borrowing profiles more efficiently.

However, the same source of funding has also become more volatile. The IMF report warned, that portfolio investors have grown increasingly sensitive to global financial conditions since the financial crisis, reacting quickly to shifts in risk sentiment. This behavior makes countries dependent on such flows more vulnerable to abrupt reversals when global markets turn.

Reuters cited the IMF as saying that economies and corporations relying heavily on these investors face heightened exposure to external shocks. Hedge funds and other investment funds, in particular, tend to respond more aggressively to risk compared with other types of investors. The risks are even more pronounced in countries with relatively shallow financial markets and limited policy flexibility.

The report also pointed to the broader macroeconomic consequences of sudden outflows. A sharp decline in portfolio investment could tighten external financing conditions, widen borrowing spreads for both governments and companies, and lead to steep currency depreciations.

In terms of scale, external portfolio debt liabilities in emerging markets average around 15% of gross domestic product, while portfolio equity liabilities stand near 7% of GDP. In some countries, these equity holdings account for a significant share of total stock market capitalization, amplifying the impact of foreign investor movements.

Certain currencies have been particularly influenced by foreign portfolio participation. Large overseas holdings helped drive strong gains in Hungary’s currency last year, although recent geopolitical tensions have reversed some of that momentum, highlighting the fragility of such flows.

The IMF also flagged emerging risks beyond traditional capital markets. Cross-border private credit and flows linked to digital assets such as stablecoins are expanding rapidly, adding another layer of complexity to capital movement dynamics in emerging economies.

To mitigate these vulnerabilities, the IMF urged policymakers to strengthen institutional frameworks, build adequate foreign exchange reserves and maintain sustainable public debt levels. These measures could help countries better withstand sudden shifts in global investor sentiment and reduce the risk of destabilizing capital outflows.