Emerging market borrowers have experienced a structural shift in where their foreign financing comes from, with portfolio investors now supplying the dominant share of flows, the International Monetary Fund said in a report. The IMF's analysis, published as a chapter of its Global Financial Stability report, finds that the proportion of foreign financing for emerging market debt originating from portfolio investors has doubled over the past 20 years to about 80%.
The report links that shift to a pullback by banks in the wake of the 2008 financial crisis. Since then, emerging markets have recorded cumulative inflows approaching $4 trillion, a volume the IMF says has allowed many countries and companies to access longer-term and lower-cost funding.
But the IMF cautions that the composition of that financing creates vulnerabilities. The Fund notes that portfolio investors have become "even more skittish since 2008" and tend to react quickly to changes in global financial conditions. That reactivity makes countries and firms that depend on these investors "particularly vulnerable to global financial shocks."
The report highlights differences across investor types, saying hedge funds and investment funds are considerably more sensitive to risk than other portfolio investors. It adds that this sensitivity is most dangerous in emerging economies with shallower capital markets and more constrained policy options, where the effects of a sudden stop in flows would be larger.
"A sudden drop in these flows could intensify external financing pressures, widen corporate and sovereign spreads, and trigger sharp currency depreciations," the IMF said, underscoring how rapid outflows could ripple through external financing conditions.
On a balance-sheet basis, the Fund estimated that external portfolio debt liabilities average roughly 15% of gross domestic product across emerging markets, while portfolio equity liabilities average near 7% of GDP. The IMF noted, however, that portfolio equity holdings can constitute an economically meaningful share of stock market capitalization for some countries.
Foreign portfolio holdings have been especially large in certain cases. The report points to Hungary's forint as an example: robust portfolio inflows helped the currency appreciate by about 20% against the U.S. dollar in the preceding year. That performance has since reversed amid falling money flows following the outbreak of the Iran war in late February, after more than a year of strong returns for emerging market assets.
Beyond conventional portfolio flows, the IMF documents that other cross-border private credit and stablecoin flows into emerging markets are "expanding rapidly," and it connects stablecoin activity closely to crypto market dynamics. These newer channels add to the complexity of cross-border financing and the speed at which capital can move.
To reduce exposure to abrupt reversals, the Fund recommends that emerging market authorities raise institutional quality, build larger buffers - including foreign exchange reserves - and keep public debt on a sustainable path. These measures are presented as ways to blunt the impact of volatile portfolio flows and improve resilience.
Key takeaways
- Portfolio investors now account for about 80% of foreign financing into emerging market debt, sharply up from two decades ago.
- Emerging markets have received cumulative portfolio inflows close to $4 trillion since 2008, which have lowered costs and extended maturities.
- External portfolio debt and equity liabilities average roughly 15% and 7% of GDP respectively, but can represent larger shares in some markets.
Sectors impacted
- Sovereign and corporate debt markets - through spreads and access to financing.
- Currencies - via rapid inflows and outflows that affect exchange rates.
- Financial sector and capital markets infrastructure - particularly in markets with limited depth.