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Scenario × Asset Analysis

What Happens to 20Y+ Treasury ETF 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.

20Y+ Treasury ETF
$83.66
as of May 17, 2026
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Trigger: EM Dollar Index
127.59
Condition: rises sharply (dollar strengthens significantly vs EM)
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How 20Y+ Treasury ETF Responds

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.

Scenario Background

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.

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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.

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

Other Assets When Emerging Market Currencies Crash

Other Scenarios Affecting 20Y+ Treasury ETF

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