Morgan Stanley: Yen Appreciation Alone Is Not Enough to Unwind Emerging Market Carry Trades
nashnova research
Morgan Stanley's strategy team argues the yen's recent surge is not enough to unravel emerging-market carry trades — global growth and EM fundamentals matter far more than yen moves alone.
What is a carry trade, and why does the yen matter?
A carry trade means borrowing a low-rate currency and investing in higher-yielding assets to pocket the spread. The yen has long been the top funding currency — because Japanese rates are ultra-low.
When the yen rallies sharply, borrowers must repay more — and exchange-rate losses can wipe out the interest earned. That is the "unwind risk" markets fear.
This means → every time the yen surges, the same question returns: will carry trades face a stampede of forced liquidations?
Why does Morgan Stanley say "it can still hold"?
The core argument from James Lord's team — head of global FX and EM strategy: global growth, global equity performance, and bottom-up EM fundamentals drive carry-trade returns far more than yen swings do.
In plain terms = a stronger yen does raise costs, but as long as the global economy holds and EM assets keep earning, investors stay in the trade.
The team explicitly maintains a constructive view across all three dimensions — in other words, they remain bullish.
What does the market data show?
Since July 29, the Brazilian real and Colombian peso fell 5.1% and 3.4% against the yen — carry losses at first glance.
But over the same period, they rose 0.7% and 2.4% against the dollar. This means → EM currencies themselves did not weaken; nearly all the "loss" came from the yen leg.
In plain terms = it is not that EM currencies broke down — the yen simply surged too fast. Fundamental support remains intact.
Why has the yen strengthened so sharply?
The yen touched 152.89 per dollar intraday on Tuesday — its strongest level since mid-February — before pulling back.
Two forces are driving it simultaneously: rising bets on a Bank of Japan rate hike and heightened vigilance over further official intervention.
This reflects a compounding of rate-hike expectations and intervention fears, not a single catalyst.
Can investors diversify away from yen risk?
Morgan Stanley notes that investors have gradually added the euro and Swiss franc as alternative funding currencies to reduce single-currency exposure to the yen.
This means → even if the yen keeps climbing, carry trades are no longer fully concentrated in one risk exposure.
But diversification is not elimination — if yen appreciation triggers broader market volatility, alternative funding currencies could come under pressure too.
What is Morgan Stanley's trade recommendation — and the key variable?
Strategists advise: keep buying EM assets on dips, citing fundamental support, attractive carry yields, and resilient global growth.
The key variable is singular: whether the yen can rally far enough to hit a tipping point that triggers wider volatility.
In plain terms = the current call is "it holds," but if the yen reaches a level that ignites broad panic, the thesis flips — and the report does not specify where that line is.
市场有风险，内容仅供研究参考，不构成投资建议。