Newsletter · · Ashutosh Agarwal

The Carry Trade Shrugged Off Japan's 87 Billion Dollar Yen Rescue - EM FX - Week of August 18, 2026

EM and commodity FX for the week of August 18, 2026. The bank strategy desks retook the microphone: the US-Japan yen intervention squeezed speculators for about a week, Japanese real money sold into the bounce, and the carry money is reloading into Mexico and Colombia, funded increasingly in Swiss francs and dollars rather than yen.

EM FX

Week of August 18, 2026: The Carry Trade Shrugged Off Japan's 87 Billion Dollar Yen Rescue

Two weeks ago, the United States and Japan spent a genuinely enormous amount of money to prop up the yen. It worked for about a week. Then the exact trade they were trying to kill quietly started putting itself back on.

That is the whole EM FX story this week, and for once you didn't have to squint to see it: the big bank strategy desks were all over it. Marc Chandler, JP Morgan's whole FX team, MUFG, Goldman, Bank of America, a systematic macro fund. After a summer of the podcasts being dominated by gold bugs and dollar-collapse pundits, the actual currency professionals showed up and told a pretty coherent story. The rescue scared the speculators. It did nothing to the machine underneath. And the money that funds emerging-market carry is already flowing again, into Mexico and Colombia, out of a slightly-less-cheap yen.

A quick plain-English note before we start, because two terms do a lot of work below. The carry trade is the oldest game in currencies: borrow money where it's cheap (Japan, where rates are near zero) and park it where it pays more (US Treasuries at ~4.5%, or higher-yielding emerging markets). You pocket the difference. It works beautifully in calm markets and blows up violently in scary ones, which is exactly why a coordinated central-bank intervention can set it off. The yen is the funding leg of that trade, the cheap money everyone borrows, so when Japan tries to force the yen up, it's really trying to make the whole global carry trade more expensive to run. Keep those two ideas in your pocket and the rest reads easily.

TL;DR

  • The rescue worked on the tourists, not the locals. Speculators slashed their bets against the yen, but leveraged funds have already started rebuilding them, and Japan's own giant institutions used the yen's brief bounce to buy the most foreign bonds and stocks in two years. Half of Japan's $87bn spend has already unwound.
  • LatAm is where the carry money is actually going. Marc Chandler says Mexico and Colombia are "the favorite of the long leg of the carry trades," and the funding is diversifying away from the yen into the Swiss franc and the dollar.
  • The dollar call is now a genuine coin-flip. JP Morgan literally staged an internal bull-vs-bear debate; Bank of America closed its dollar-longs and went neutral. Nobody is confident. Everyone is waiting on Jackson Hole (Aug 28).
  • The Bank of Japan is now expected to hike in September. Market odds went from ~20% to over 80% in a fortnight. It still hasn't done the yen much good.
  • Watch the yuan as a diplomatic tell. BofA calls the Chinese renminbi a "coincidence indicator" for the Xi-Trump summit in September. It's been kept deliberately stable, which tells you how the pre-talks are going.
  • The dedicated EM currencies stayed quiet again. No real rupee, won, real, rand, lira, or Central Europe coverage this week. The story is being told through the carry basket and the dollar, not one currency at a time.

What's new

The intervention squeezed the speculators, and they're already coming back. This is the single most important thing that happened, and it came from the actual sell-side desks. On The MUFG Global Markets Podcast (Aug 14), senior currency analyst Derek Halpenny and economist Henry Cook laid it out plainly: after the late-July joint intervention, positioning data showed "a sharp unwind of short yen speculative positions by leverage funds," so from that angle it worked. But, Cook said, "broader financial conditions remain supportive for yen funded carry trade. So we may have seen leverage funds kind of gradually, cautiously rebuilding those short yen positions over the past week." In plain terms: the funds that borrow cheap yen to bet elsewhere got scared out, waited a week, and started sneaking back in. The yen has already given back "around half of its intervention driven gains."

The real money never left at all, it bought the dip in reverse. The sharpest observation of the week came from veteran FX strategist Marc Chandler on The KE Report (Aug 14). Everyone was asking why the dollar/yen snapped back to 159.55 (its highest since the intervention) even after Japan sold roughly $80 billion of dollars to defend the yen. Chandler's answer: because Japan's own investors used the stronger yen to go shopping abroad. "In that first week after the intervention... Japanese investors bought the most amount of foreign bonds and stocks... in two years. They took advantage of the little bit of a bounce that the intervention caused... and with that stronger yen, they could buy more foreign assets." So rather than the intervention squeezing out the carry trade, "the bigger, the deeper pockets, the real money, seem to be taking advantage of that bounce in the yen to sell into it." The intervention handed the structural sellers a better price.

Where the carry money is actually going: Latin America. This is the closest thing to a live EM currency call anyone made, and it came from Chandler too. Asked whether the carry-trade world has changed, he said no, and pointed straight at LatAm: "When I look at the composition of what's happened in the currency markets, LATAM currencies, Mexico, Colombia, have been very strong. They are the favorite of the long leg of the carry trades. And then you can pick your funding currency depending on your risk tolerance." Crucially, the funding leg is diversifying: with the yen contested, Chandler says traders have shifted to funding carry in Swiss francs (euro/Swiss is at new highs for the year) and US dollars. The trade is alive; it's just quietly re-routing around the yen.

The dollar debate is genuinely split, and JP Morgan aired its own internal argument. At Any Rate (Aug 14), JP Morgan's podcast, ran what they called a "Debate Corner," with FX strategy co-head Meera Chandan refereeing a real disagreement among her own team. James Nelligan made the dollar-bull case: the US economy has "organic strength," ISM manufacturing accelerating, jobless claims at new lows, and if the carry environment holds "you can have a slow grind stronger in the dollar." Patrick Locke took the other side: the whole rates story this year "was really about a turn in the labor market," headline jobs growth "collapsed" from ~180k, wage growth is ~3% (flat in real terms, the lowest of the cycle), and against "good global growth, curve steepening... and dollar length here across the market. That to me is not really an environment which the dollar is going to appreciate." Where they landed matters: co-head Arindam Sandilya noted the dollar "hasn't really responded much to the ebb and flow of US data," and Chandan's own gun-to-head view was that six months out "that position has to be bullish because... that's the direction that the Fed is eventually going." Translation: JPM trimmed its dollar longs but can't bring itself to flip short.

Bank of America went further, it actually closed the dollar bet. On Global Research Unlocked (Aug 14), BofA FX strategist Adarsh said the desk had a bullish-dollar conviction for Q3, had been recommending shorting the euro since June, and closed that trade after the Fed meeting. Now, he says, the big question from clients is whether to flip and sell the dollar outright, "and at this point, I'd say we're not convinced it's the time to flip positioning." Their year-end euro/dollar forecast is 1.15, basically where it trades today, genuine neutrality. Two things are capping the euro even as US data softens: elevated European gas prices (Middle East tension), and the fact that euro shorts have already been cleaned out, so there's less fuel for a squeeze higher.

A structural skeptic's warning: the intervention was always going to fail. For the bearish-on-the-whole-exercise view, Jeff Snider on Eurodollar University (Aug 13) made the most complete argument. His point: the carry trade everyone pictures, hedge funds shorting the yen, is "the cartoonish version." The real one "begins inside Japan," where pension funds, banks and insurers move enormous savings abroad every year because domestic returns are too low to meet their obligations. "It's Japan's own financial system voting with its balance sheet." You can scare the hedge funds; you cannot command a pension system to abandon its return targets because Tokyo dislikes the exchange rate. So the intervention squeezing speculators "proves so very little... Officials squeezed the tourists, but the ocean of institutional money beneath them kept moving." Until Japan generates a real reason to keep money at home, he argues, every intervention just buys a few days and burns reserves.

The debate

This is one of those weeks where both sides genuinely got a hearing, the podcasts didn't force it, so here's the honest steel-man of each.

The bull case for EM carry (soft dollar plus the trade that won't die). The US data is cooling: two of the three jobs reports before the September Fed meeting disappointed, and MUFG flagged a "much softer retail sales print for July" as a sign the consumer is finally slowing. That gives the Fed room to sit still, and as MUFG put it, if the Fed holds "it does leave the potential there for the dollar to re-weaken as we head into year end." A softer, sideways dollar with US yields still comfortably above zero is the ideal climate for borrowing cheap and lending dear. And the trade is visibly reloading: funds rebuilding short-yen positions (MUFG), real money selling yen into strength (Chandler), and LatAm leading the long leg. The blunt version, from JP Morgan's debate: "All roads lead to carry. It's the level of yields that matter more." As long as EM pays you meaningfully more than the dollar, the money keeps coming.

The bear case (crowded, contested, one shock from a clean-out). Start with Snider: the intervention already half-failed inside two weeks, which tells you how fragile the whole structure is. Add that the thing that makes carry work, a wide yield gap, is actively narrowing: US yields are falling while Japanese yields rise, and the Bank of Japan is now expected to hike in September (market odds jumped from roughly 20% to over 80% in two weeks, per Chandler). A smaller gap means less to earn for the same risk. Then the trade-war overhang: Chandler flagged that fresh 50% US tariffs on roughly $20 billion of Canadian goods, with no USMCA exemption, were set to hit August 19, and JP Morgan's team called the USMCA negotiating well "poisoned." Carry trades die in exactly this kind of headline. The uncomfortable truth is that a crowded trade re-crowding after a scare is not obviously a green light.

Where the two sides actually meet: nobody this week was pounding the table. JP Morgan trimmed. BofA went flat. Goldman called the intervention a stabilizer, not a fix. The honest read is a market that likes the carry income but is quietly buying insurance.

The trades in play

The episodes did point at concrete ways to express all this, so here they are, woven, not as a checklist.

  • The long leg is LatAm, the funding leg is no longer just the yen. Chandler's framing is the most actionable thing said all week: Mexico and Colombia are the preferred longs, and you "pick your funding currency depending on your risk tolerance," increasingly the Swiss franc or the dollar rather than the contested yen.
  • If you want to play yen strength, do it against the euro, not the dollar. Goldman's FX options head Praneet Shah, on Exchanges (Aug 13), said clients have shifted to euro/yen (watching the 187.50 level) precisely to avoid getting caught on the wrong side of US involvement in dollar/yen. He noted his client base is split right down the middle: half positioning for the yen to strengthen toward 150 against the dollar, half just buying the dip on the view that "nothing structurally has actually changed."
  • The value crowd is quietly long the yen. Jon Havice of DGV Solutions, a systematic macro fund, told Alpha Exchange (Aug 13) that although you "pick up the carry" staying in US Treasuries at 4.5% versus Japanese 2%, the yen is so cheap (fair value on a purchasing-power basis is near 100 versus ~158 today) that "the value factor is really overwhelming... the carry that you'd give up in staying in dollars." His caution, which every carry trader should tattoo somewhere: policymakers "can really impose themselves," and when the US Treasury and Japan want the yen higher "it's going to work, at least for a period of time," but pegs and defenses eventually break.
  • The next data point that decides all of it: Jackson Hole, August 28. BofA's rates strategist described the Fed chair's July press conference as an "inflation credibility shock" and thinks he may use Jackson Hole to "set the record straight." A hawkish tone floors the dollar's downside and pressures the crowded carry longs; a dovish one green-lights the reload. (FOMC minutes on August 18 are the appetizer.)

Read-throughs

To the local-currency and hard-currency EM debt world (think EMB and local-debt funds): the read-through is constructive-but-nervous. A stable-to-soft dollar and a Fed on hold is a tailwind for EM bonds, and the carry money is demonstrably flowing back in. But the yield gap is compressing from both ends, so the income cushion is thinner than it was, you're getting paid a bit less to hold a slightly more crowded trade.

To LatAm equity and FX proxies (EWZ Brazil, EWW Mexico): Mexico is the standout beneficiary of Chandler's "favorite long leg" call, strong peso, carry demand, but it carries the single biggest tail risk on the board: the USMCA/tariff fight, with the Canada tariff escalation on August 19 a live reminder that North American trade policy can turn on a headline. No episode touched Brazil's real or its October election this week, so that thread stays dormant for now.

To Asia and the China complex (INDA India, EWY Korea, and the yuan): the most useful new lens is BofA's. Adarsh called the Chinese renminbi "a pretty good coincidence indicator of how the US-China relation is going," tied to the Xi-Trump summit scheduled for September: China has kept the currency "quite stable" recently, a tell that pre-summit talks aren't yet going swimmingly, but "if it looks like the discussions are going well, then usually there tends to be some token appreciation in the RMB," and ultimately China "would allow further appreciation." So watch the daily yuan fix as a diplomatic barometer, not just a monetary one. China's monthly activity data (retail sales, industrial production) was also due Monday, per Chandler. India, Korea and the rest of Asia FX went unmentioned.

To Europe and Central Europe (the euro cycle that drives the zloty, forint and koruna): BofA's 1.15 euro/dollar target says "range-bound," which by extension keeps Central European currencies in a holding pattern, no euro breakout to ride. One new risk on the radar: an early-September German state election (Saxony-Anhalt) where the far-right AfD is polling high, which BofA flagged as a potential European "fiscal risk premium" event. Worth a note for anyone long the region.

To the broad dollar regime: the cleanest framing came from JP Morgan's Sandilya, who pointed out that the entire drop in the dollar index from about 101.5 to 100 was "sponsored by the dolly [dollar/yen] and intervention episode," i.e. the dollar's weakness this summer is largely one trade, not a broad rejection of the currency. That's a subtle but important point: if the yen story stabilizes, a chunk of the "weak dollar" narrative stabilizes with it.

What changed from last week

Last week the EM FX conversation was almost entirely independent commentators and doom-merchants, Rickards, Schiff and the gold crowd, warning that the yen rescue was living on borrowed time. This week the professionals took the microphone back, and the tone shifted from "this is going to blow up" to "this is a live, tradeable, two-sided market." Three concrete moves since last week:

  1. The carry trade went from theory to data. Last week we could only say the funding leg looked fragile; this week the positioning data is in, and it shows the speculators covered (net short-yen bets roughly halved, from about 138,000 contracts to 63,000, the fourth-largest such reduction in twenty years, per Goldman) and are now rebuilding, while real money sold into the bounce. The trade didn't die; it caught its breath.
  2. The September BoJ hike went from long-shot to base case. Chandler: from ~20% odds to over 80% in a couple of weeks. That's the compressing-yield-gap risk the bears keep flagging, now showing up in market pricing.
  3. The yuan re-entered the story, not as a monetary event but as a diplomatic one, tied to the September Xi-Trump summit. After multiple silent weeks, that's a fresh EM thread worth carrying forward.

What did not change: the dedicated EM currencies, the rupee, won, real, rand, lira, and the Central European three, went essentially unvoiced again. This remains a carry-basket-and-dollar story told from the top down, not a currency-by-currency one.

One for the road

If you ever want a visceral reminder of why this whole EM FX game matters, Planet Money (Aug 12) ran a terrific "Summer School" episode this week on Argentina's currency chaos: the world of the "blue dollar" black market, a dozen official exchange rates (including, genuinely, a special "Coldplay dollar" so promoters could pay the band), and shopkeepers repricing tango shoes three times in two weeks. The payoff is the update from Tulane economist Sebastian Gagliani: under President Milei, Argentina has floated the peso, scrapped the tangle of capital controls, cut the deficit and stopped printing money, dragging annual inflation from over 100% down to around 30%. His warning against going all the way to full dollarization is a neat encapsulation of the whole EM FX bargain: a flexible currency is painful, but it's also the shock absorber you give up at your peril. It's the human version of everything the strategists debated in the abstract this week.