What Happens When Emerging Market Currencies Crash?
What happens when emerging market currencies collapse? Contagion risk, capital flight, commodity impact, and whether EM crises spill over to US markets.
Trigger: EM Dollar Index rises sharply (dollar strengthens significantly vs EM)
The Mechanics
Emerging market currency crises occur when capital rapidly exits developing economies, causing their currencies to collapse against the dollar. This can be triggered by US rate hikes (making dollar assets more attractive), commodity price collapses (reducing EM export revenue), political instability, or contagion from one EM crisis spreading to others.
The mechanism is self-reinforcing and devastating. As the local currency weakens, dollar-denominated debt becomes more expensive to service. Companies and governments that borrowed in dollars see their debt burden explode in local currency terms. This forces asset sales to raise dollars, which further weakens the currency, which further increases the debt burden. The vicious cycle continues until the currency has depreciated enough to restore external competitiveness or until the IMF intervenes.
For US and global markets, the key question is whether EM stress is contained (affecting only the specific country) or systemic (spreading across multiple EM economies). The 1997 Asian crisis started in Thailand and spread to Korea, Indonesia, Russia, and eventually LTCM in the US. The 2018 Turkey/Argentina crises were more contained. Whether contagion occurs depends on the financial linkages between affected countries and the global banking system.
Historical Context
The 1997 Asian Financial Crisis began with the Thai baht collapse and spread across Asia, causing EM equities to fall 50-60% and eventually triggering the Russian default and LTCM bailout. The 2013 "Taper Tantrum" caused significant EM currency weakness as the Fed signaled QE tapering, the "Fragile Five" (Brazil, India, Indonesia, South Africa, Turkey) saw their currencies fall 10-20%. In 2018, Turkey's lira and Argentina's peso crashed 40-50%, but contagion was limited to EM. The 2022 Sri Lanka default demonstrated that isolated EM crises can occur without significant spillover when major EMs are financially healthier.
Market Impact
EM equities face 20-40% declines during currency crises. The combination of currency loss, capital flight, and forced tightening by EM central banks creates a toxic environment.
The dollar strengthens as capital flees EM for the safety of US assets. This creates the paradox where the strong dollar is both a cause and consequence of EM distress.
If the crisis is contained, US equities may benefit from safe-haven flows. If it becomes systemic (1997 template), US equities face 10-20% drawdowns from global financial stress.
EM currency crises typically coincide with commodity weakness because many EM economies are commodity exporters. Forced selling by EM sovereign wealth funds adds to commodity downside pressure.
Treasuries benefit from flight-to-quality flows during EM crises. Yields fall 50-100bps during systemic EM events as global capital seeks the safest available assets.
EM HY bonds suffer directly. US HY spreads can widen in sympathy if the crisis is systemic enough to affect global risk appetite and banking sector exposures to EM.
What to Watch For
- -Multiple EM currencies weakening simultaneously, contagion dynamics in play
- -EM central banks aggressively hiking rates to defend currencies, tightening into weakness
- -US bank exposures to affected EM economies, transmission channel to US financial system
- -IMF emergency lending programs being activated, the crisis has reached critical level
- -EM sovereign CDS spreads spiking, the bond market pricing in default risk
How to Interpret Current Conditions
Monitor the EM-weighted dollar index for broad EM currency weakness. Compare against the broad dollar index, if the EM index is weakening faster than the broad index, the stress is EM-specific rather than dollar-driven. Also track EM bond fund flows for signs of capital flight.
Per-Asset Deep Dives
Dedicated analysis of how this scenario affects each asset class individually.
EM equities face 20-40% declines during currency crises. The combination of currency loss, capital flight, and forced tightening by EM central banks creates a toxic environment.
The dollar strengthens as capital flees EM for the safety of US assets. This creates the paradox where the strong dollar is both a cause and consequence of EM distress.
If the crisis is contained, US equities may benefit from safe-haven flows. If it becomes systemic (1997 template), US equities face 10-20% drawdowns from global financial stress.
EM currency crises typically coincide with commodity weakness because many EM economies are commodity exporters. Forced selling by EM sovereign wealth funds adds to commodity downside pressure.
Treasuries benefit from flight-to-quality flows during EM crises. Yields fall 50-100bps during systemic EM events as global capital seeks the safest available assets.
EM HY bonds suffer directly. US HY spreads can widen in sympathy if the crisis is systemic enough to affect global risk appetite and banking sector exposures to EM.
When Emerging Market Currencies Crash, WTI Crude Oil (FRED) typically responds to the changing macro environment. West Texas Intermediate crude oil spot price. This scenario is particularly relevant for commodities because changes in EM Dollar Index directly influence the macro environment for WTI Crude Oil (FRED). Investors should monitor both the trigger condition and WTI Crude Oil (FRED)'s response to position accordingly.
When Emerging Market Currencies Crash, Brent Crude Oil (FRED) typically responds to the changing macro environment. Brent crude oil spot price, the global benchmark. This scenario is particularly relevant for commodities because changes in EM Dollar Index directly influence the macro environment for Brent Crude Oil (FRED). Investors should monitor both the trigger condition and Brent Crude Oil (FRED)'s response to position accordingly.
When Emerging Market Currencies Crash, Henry Hub Natural Gas typically responds to the changing macro environment. Henry Hub natural gas spot price, US benchmark. This scenario is particularly relevant for commodities because changes in EM Dollar Index directly influence the macro environment for Henry Hub Natural Gas. Investors should monitor both the trigger condition and Henry Hub Natural Gas's response to position accordingly.
When Emerging Market Currencies Crash, Copper Price (Global) typically responds to the changing macro environment. Global copper price, "Dr. Copper" is a leading economic indicator. This scenario is particularly relevant for commodities because changes in EM Dollar Index directly influence the macro environment for Copper Price (Global). Investors should monitor both the trigger condition and Copper Price (Global)'s response to position accordingly.
When Emerging Market Currencies Crash, Bitcoin typically responds to the changing macro environment. Bitcoin spot price, the original cryptocurrency and macro risk-on barometer. This scenario is particularly relevant for crypto because changes in EM Dollar Index directly influence the macro environment for Bitcoin. Investors should monitor both the trigger condition and Bitcoin's response to position accordingly.
When Emerging Market Currencies Crash, Ethereum typically responds to the changing macro environment. Ethereum spot price, the leading smart contract platform token. This scenario is particularly relevant for crypto because changes in EM Dollar Index directly influence the macro environment for Ethereum. Investors should monitor both the trigger condition and Ethereum's response to position accordingly.
When Emerging Market Currencies Crash, Gold (Spot) typically responds to the changing macro environment. Gold spot price, the ultimate safe haven and inflation hedge. This scenario is particularly relevant for commodities because changes in EM Dollar Index directly influence the macro environment for Gold (Spot). Investors should monitor both the trigger condition and Gold (Spot)'s response to position accordingly.
When Emerging Market Currencies Crash, Brent Crude Oil typically responds to the changing macro environment. Brent crude oil price, the global benchmark. This scenario is particularly relevant for commodities because changes in EM Dollar Index directly influence the macro environment for Brent Crude Oil. Investors should monitor both the trigger condition and Brent Crude Oil's response to position accordingly.
When Emerging Market Currencies Crash, Natural Gas typically responds to the changing macro environment. Natural gas spot price. This scenario is particularly relevant for commodities because changes in EM Dollar Index directly influence the macro environment for Natural Gas. Investors should monitor both the trigger condition and Natural Gas's response to position accordingly.
When Emerging Market Currencies Crash, Nasdaq 100 ETF (QQQ) typically responds to the changing macro environment. Invesco QQQ tracking the Nasdaq 100, tech-heavy growth index. This scenario is particularly relevant for equity index because changes in EM Dollar Index directly influence the macro environment for Nasdaq 100 ETF (QQQ). Investors should monitor both the trigger condition and Nasdaq 100 ETF (QQQ)'s response to position accordingly.
When Emerging Market Currencies Crash, Dow Jones ETF (DIA) typically responds to the changing macro environment. SPDR Dow Jones Industrial Average ETF, tracks the 30 blue-chip Dow components. This scenario is particularly relevant for equity index because changes in EM Dollar Index directly influence the macro environment for Dow Jones ETF (DIA). Investors should monitor both the trigger condition and Dow Jones ETF (DIA)'s response to position accordingly.
When Emerging Market Currencies Crash, Russell 2000 ETF (IWM) typically responds to the changing macro environment. iShares Russell 2000 ETF, small-cap equity benchmark. This scenario is particularly relevant for equity index because changes in EM Dollar Index directly influence the macro environment for Russell 2000 ETF (IWM). Investors should monitor both the trigger condition and Russell 2000 ETF (IWM)'s response to position accordingly.
When Emerging Market Currencies Crash, S&P 500 Equal Weight (RSP) typically responds to the changing macro environment. Equal-weight S&P 500, measures market breadth vs cap-weighted SPY. This scenario is particularly relevant for equity index because changes in EM Dollar Index directly influence the macro environment for S&P 500 Equal Weight (RSP). Investors should monitor both the trigger condition and S&P 500 Equal Weight (RSP)'s response to position accordingly.
When Emerging Market Currencies Crash, China Large-Cap (FXI) typically responds to the changing macro environment. iShares China Large-Cap ETF, proxy for Chinese equity market. This scenario is particularly relevant for equity index because changes in EM Dollar Index directly influence the macro environment for China Large-Cap (FXI). Investors should monitor both the trigger condition and China Large-Cap (FXI)'s response to position accordingly.
When Emerging Market Currencies Crash, EAFE Developed (EFA) typically responds to the changing macro environment. iShares MSCI EAFE ETF, developed markets excluding US and Canada. This scenario is particularly relevant for equity index because changes in EM Dollar Index directly influence the macro environment for EAFE Developed (EFA). Investors should monitor both the trigger condition and EAFE Developed (EFA)'s response to position accordingly.
When Emerging Market Currencies Crash, Germany / DAX (EWG) typically responds to the changing macro environment. iShares MSCI Germany ETF, proxy for the DAX and German equity market. This scenario is particularly relevant for equity index because changes in EM Dollar Index directly influence the macro environment for Germany / DAX (EWG). Investors should monitor both the trigger condition and Germany / DAX (EWG)'s response to position accordingly.
When Emerging Market Currencies Crash, Japan / Nikkei (EWJ) typically responds to the changing macro environment. iShares MSCI Japan ETF, proxy for the Nikkei 225 and Japanese equity market. This scenario is particularly relevant for equity index because changes in EM Dollar Index directly influence the macro environment for Japan / Nikkei (EWJ). Investors should monitor both the trigger condition and Japan / Nikkei (EWJ)'s response to position accordingly.
When Emerging Market Currencies Crash, 7-10Y Treasury (IEF) typically responds to the changing macro environment. iShares 7-10 Year Treasury Bond ETF. This scenario is particularly relevant for bonds & duration because changes in EM Dollar Index directly influence the macro environment for 7-10Y Treasury (IEF). Investors should monitor both the trigger condition and 7-10Y Treasury (IEF)'s response to position accordingly.
When Emerging Market Currencies Crash, 1-3Y Treasury (SHY) typically responds to the changing macro environment. iShares 1-3 Year Treasury Bond ETF, short duration. This scenario is particularly relevant for bonds & duration because changes in EM Dollar Index directly influence the macro environment for 1-3Y Treasury (SHY). Investors should monitor both the trigger condition and 1-3Y Treasury (SHY)'s response to position accordingly.
When Emerging Market Currencies Crash, TIPS (TIP) typically responds to the changing macro environment. iShares TIPS Bond ETF, inflation-protected Treasuries. This scenario is particularly relevant for bonds & duration because changes in EM Dollar Index directly influence the macro environment for TIPS (TIP). Investors should monitor both the trigger condition and TIPS (TIP)'s response to position accordingly.
When Emerging Market Currencies Crash, Gold ETF (GLD) typically responds to the changing macro environment. SPDR Gold Shares, largest gold ETF. This scenario is particularly relevant for commodities because changes in EM Dollar Index directly influence the macro environment for Gold ETF (GLD). Investors should monitor both the trigger condition and Gold ETF (GLD)'s response to position accordingly.
When Emerging Market Currencies Crash, Oil ETF (USO) typically responds to the changing macro environment. United States Oil Fund, WTI crude oil futures ETF. This scenario is particularly relevant for commodities because changes in EM Dollar Index directly influence the macro environment for Oil ETF (USO). Investors should monitor both the trigger condition and Oil ETF (USO)'s response to position accordingly.
When Emerging Market Currencies Crash, Agriculture ETF (DBA) typically responds to the changing macro environment. Invesco DB Agriculture Fund, broad agricultural commodities. This scenario is particularly relevant for commodities because changes in EM Dollar Index directly influence the macro environment for Agriculture ETF (DBA). Investors should monitor both the trigger condition and Agriculture ETF (DBA)'s response to position accordingly.
Frequently Asked Questions
What triggers the "Emerging Market Currencies Crash" scenario?▾
The scenario activates when rises sharply (dollar strengthens significantly vs EM). The trigger metric and its current reading are shown on this page, so the live state of the scenario is always visible rather than abstract. Convex tracks this trigger continuously and flags crossings within hours.
Which assets are most affected when this scenario unfolds?▾
The Market Impact section lists the full asset-by-asset response, but the primary affected assets include: Emerging Markets (EEM), US Dollar, US Equities (S&P 500), Commodities. Each asset has historically shown a characteristic pattern of response that is described in detail on the per-asset deep-dive pages linked below.
How often has this scenario played out historically?▾
The 1997 Asian Financial Crisis began with the Thai baht collapse and spread across Asia, causing EM equities to fall 50-60% and eventually triggering the Russian default and LTCM bailout. The 2013 "Taper Tantrum" caused significant EM currency weakness as the Fed signaled QE tapering, the "Fragile Five" (Brazil, India, Indonesia, South Africa, Turkey) saw their currencies fall 10-20%. In 2018, Turkey's lira and Argentina's peso crashed 40-50%, but contagion was limited to EM. The 2022 Sri Lanka default demonstrated that isolated EM crises can occur without significant spillover when major EMs are financially healthier.
What should I watch for next?▾
The most important signals to track while this scenario is active: Multiple EM currencies weakening simultaneously, contagion dynamics in play; EM central banks aggressively hiking rates to defend currencies, tightening into weakness. The full list is on this page under "What to Watch For." These signals are the ones that historically preceded the scenario either resolving or accelerating.
How should I interpret the current state of this scenario?▾
Monitor the EM-weighted dollar index for broad EM currency weakness. Compare against the broad dollar index, if the EM index is weakening faster than the broad index, the stress is EM-specific rather than dollar-driven. Also track EM bond fund flows for signs of capital flight.
Is this a prediction or a conditional analysis?▾
This is conditional analysis, not a prediction that the scenario will happen. Convex describes what typically follows once the trigger fires and shows how close or far the current data is from that trigger. The page is informational; it does not constitute financial advice.
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This content is educational and for informational purposes only. It does not constitute financial advice. Historical patterns do not guarantee future results. Data sourced from FRED, market feeds, and public economic releases.