Newsletter · 2026-08-10 · Ashutosh Agarwal

A Jobs Shock Does What Yen Intervention Could Not - G10 FX & The Carry Trade - Week of August 10, 2026

For the week of August 3 to 10, 2026, the US economy lost jobs in July, a September Fed hike went from near-certain to a coin toss, and the dollar sagged, yet the yen still slid back to roughly 158.8 per dollar, the middle of the range two governments spent tens of billions defending.

G10 FX & The Carry Trade

Week of August 10, 2026: A Jobs Shock Does What Yen Intervention Could Not

Last Thursday I left you with a single date circled: Friday's US jobs report. The whole question hanging over the currency market was whether the historic US-Japan rescue of the yen would hold, and I said the jobs number would tell us. It did, and it delivered its verdict in one line: the US economy lost jobs in July.

Not "grew slowly." Lost. And with that, the interest-rate hike the market had been bracing the Federal Reserve to deliver in September went from near-certain to a coin toss. The dollar sagged. And here is the twist worth sitting with: even with a falling dollar handing the yen a free tailwind, the yen still couldn't stay strong. As I write, the dollar buys about ¥158.8, right back in the middle of the range the two governments spent tens of billions to defend two weeks ago. That is the story this week. A government can buy the yen. A soft jobs report can knock the dollar down. And the yen still drifts back. Below is what the podcasts said about why.

TL;DR

The July jobs report was a genuine shock: payrolls fell 23,000, versus about +80,000 expected, the first outright decline since February, with roughly 103,000 knocked off the prior two months in revisions. Wage growth cooled to 3.2% a year, the slowest in about five years.
The market ripped up its Fed script. Odds of a September rate hike collapsed from near-certain to under 50-50 (one show clocked the move from 62% to 44%). Two-year Treasury yields dropped eight basis points to 4.18%. Stocks rallied, classic "bad news is good news."
The dollar fell, but the yen is the tell. After all the drama, a first US-Japan joint intervention since 1998, then a soft dollar, the dollar still buys about ¥158.8, essentially where it sat before Friday. Intervention plus a weaker dollar together produced a wobble, not durable yen strength.
The euro is holding its breakout at $1.15 ($1.1555 now) but has stalled well below its one-year high near $1.20. The one fresh euro story is a diplomatic one: the ECB was reportedly blindsided to learn the US Treasury sold euros to fund its yen-buying.
The single most important yen question is unchanged: will the Bank of Japan actually raise rates in September? Council on Foreign Relations' Brad Setser says the rescue works if it does, and only if. Odds of a September Japanese hike have roughly doubled to ~50%.
The crowded trade is a coiled spring. Before the intervention, speculators were holding a record 264,000 contracts betting against the yen, and were still adding to the bet the very week the governments moved against them. That is the fuel for a violent squeeze if the yen ever holds its gains.
Sterling and the Swiss franc had no story of their own again. Cable is a passenger at $1.35; the franc stays firm and keeps being borrowed as the market's funding currency of choice. I'll say that plainly rather than invent a narrative.

What's new

1. The jobs report tore up the Fed script: and that's a currency story

Start with the numbers, because they were startling. On Key Wealth Matters (Aug 7), Key's chief investment officer George Mateyo put it simply: markets expected "something like 80,000 jobs added" and instead "roughly 23,000 jobs were lost… a big deviation." Worse, the unemployment rate fell to 4.1%, but, he stressed, "for what they call the wrong reasons": not because more people found work, but because fewer people are even looking. The share of Americans working or looking for work dropped to 61.4%, which, outside the pandemic, is the lowest since the 1970s.

Why does a US labour report headline a currency letter? Because it moves the one thing that sets the dollar's price: what the Fed does next. The bond desk reaction was immediate. Key's head of fixed income, Rajeev Sharma, walked through it: "the two year immediately snapped down in yield by eight basis points to 4.18%… the 10 year was down six basis points to 4.63%, which is a pretty big move on the day." And the punchline for the Fed:

The swaps market right now is pricing less than a 50-50 odds that we would have a rate hike in September. Money markets are still projecting one hike for 2026, but not before December.

On Bloomberg's instant-reaction coverage (Aug 7), Citigroup's chief US economist Andrew Hollenhorst said it in one sentence: "It really, really takes the pressure off in terms of a September rate hike. It would now look a bit strange." Wolf Research's Stephanie Roth agreed: "This supports the Fed in staying on hold. How can they possibly be hiking into this?" And she flagged the political undertone, with new Fed chair Kevin Warsh and the President reportedly in far more frequent contact than markets had assumed, the weak number now gives Warsh room "to stay on hold and do it credibly."

The dollar sold off on the news, with the yen and the Norwegian krone leading the G10 higher. Hollenhorst tied the two threads together directly, the report takes pressure off both the Fed and Japan's policymakers at once.

Why it matters: for a month the dollar's strength rested on the belief that the US economy was hot enough to force the Fed to hike while everyone else was cutting. Friday knocked a leg out from under that. The dollar didn't collapse, but the easy, one-way "America's growth is unstoppable" trade got a lot harder to hold.

2. …but read the fine print. Nearly every economist called the report soft, not broken

Here is where the podcasts earned their keep, because the smart voices refused to over-read one messy number.

On JPMorgan's Making Sense (Aug 7), chief US economist Mike Frohle noted that a big chunk of the miss, a 50,000 drop in local-government education jobs, is probably just a summer-schedule quirk that reverses. Private hiring still grew, if barely, by 30,000. His base case did not change: the Fed's first cut comes in December, and September only becomes a live hike "if the two upcoming CPIs come in on the firmer side." His rule of thumb, in plain terms: two hot inflation readings (around 0.3% each) and they hike; two cool ones (0.1%) and they pause.

Bloomberg's Michael McKee, on Businessweek (Aug 7), gave the cleanest summary: "The labour market is weaker than it had appeared, but it's not weak." Deutsche Bank's chief economist Matt Lizetti added the number that reframes everything, because immigration has shrunk the workforce, the "break-even" pace of hiring (the amount you need just to keep unemployment steady) has fallen "as low as zero per month." So a print near zero isn't a crisis; it's roughly treading water. And crucially, Lizetti argued inflation is still the Fed's real problem: strip out the pandemic and the Fed's preferred inflation gauge is the highest since 1992.

JPMorgan Asset Management's David Kelly, on Squawk on the Street (Aug 7), gave the memorable version: "American business can't find workers and American workers can't find a raise." His point about wages is the one that matters most for the Fed and the dollar, you cannot get a 1970s-style wage-price spiral if wages aren't spiraling. He called it "Teflon inflation," and concluded the Fed "is absolutely right not to raise rates right now." He also predicted Warsh will be forced to communicate far more clearly at the Jackson Hole gathering later this month, "because otherwise other people are going to fill in the narrative for you."

BlackRock's fixed-income chief Rick Rieder, on Bloomberg (Aug 7), was almost dismissive of the panic: "It's actually remarkable how unremarkable the data is." His read is that America is living through "a productivity revolution", companies growing revenue and earnings while quietly employing fewer people, so weak hiring isn't weak demand, it's efficiency. His bottom line for rates: the Fed shouldn't hike, because higher rates won't fix this kind of inflation anyway.

Why it matters: this is the crux of the September call, and therefore of the dollar. If the doves are right that the labour market is soft, the dollar's summer support keeps eroding. If the hawks are right that a shrunken workforce means the economy is still tight and inflation is still ~3%, then next week's inflation report can put the September hike right back on the table, and snap the dollar back up. Which brings us to the one date that now matters more than Friday's: Wednesday's US inflation report.

3. The dissenter worth hearing: this is the same movie, third summer running

For a bracing counter-take, Jeff Snider of Eurodollar University (Aug 8) argued the whole cycle is depressingly familiar. His claim: the Fed turns hawkish every summer on a temporary bounce in the data, warns about "sticky inflation," then is forced to reverse and cut by September when the numbers sour. He counts it happening in 2024, in 2025, and now, he says, in 2026. In his telling, Friday wasn't a surprise at all, it was the predictable "payback" after an "artificial high," and it means the Fed's hawkish summer talk will melt into rate cuts by the autumn. Treat it as a minority view, but a coherent one, and if he's right, the dollar's next big move is down.

4. The euro's fresh story is a diplomatic incident

The euro is quietly holding the breakout we've been watching, it cleared $1.15 two weeks ago and sits at $1.1555 now, but it has stalled, still a long way below its one-year high near $1.20. There was little new economic news for the euro this week. There was, however, a genuine diplomatic wrinkle.

Recall how the US funded its yen rescue: it sold euros, not dollars. On The Morning Market Briefing (Aug 7), the hosts relayed that the European Central Bank says it was "blindsided", genuinely shocked, to discover the US Treasury had been selling euros in the open market, with the Financial Times framing it as a breach of etiquette between allies. The hosts were unsympathetic, and made the practical point that it is, ultimately, America's money to spend.

There's a more interesting possibility buried here. On Bloomberg Surveillance (Aug 6), Bank of America's yen strategist Shusuke Yamada suggested the euro-selling might actually mean European officials were quietly pre-notified, hinting the coordination could be broader, a G7-scale affair rather than a purely US-Japan one. We don't know which it is yet. But it's worth watching: if selling euros to prop up the yen becomes a repeatable tool, that's a slow, mechanical headwind for the euro that has nothing to do with the ECB.

5. The yen's real question hasn't changed: will the Bank of Japan actually hike?

Strip away the fireworks and the yen comes back to one question. Council on Foreign Relations economist Brad Setser, on Odd Lots (Aug 6), gave the clearest test of the whole rescue:

I think it will be enough if the Bank of Japan is going to raise rates and maybe raise rates several times… if the Bank of Japan doesn't raise rates in September, this will be tested clearly.

Setser is, on balance, a yen bull, but a conditional one. His case: Japan is not a basket case. It runs a current-account surplus of about 5% of its economy (from overseas investment income, not trade), and its government sits on a foreign-asset pile worth close to half its entire GDP, roughly $1.2 trillion in reserves plus a $900 billion-plus national pension fund invested abroad. The yen, in his view, has overshot to the weak side and is "fundamentally OK." What's missing is the one thing only Tokyo can supply: higher Japanese interest rates.

He also zoomed out to a fascinating puzzle: the whole of East Asia has a weak currency this year despite record trade surpluses, Korea's surplus is on track to more than triple, Taiwan's to double. Some of that is deliberate (Taiwan's central bank is engineering a weaker currency; Korea has a quirk where good news for its tech giants forces foreign investors to sell Korean stocks and money to flow out). The yen is simply the most famous member of that club, with the added weight of near-zero interest rates.

Encouragingly for the bulls, the odds of a Japanese rate hike are climbing. On Mining Stock Daily (Aug 7), One Point BFG's Peter Boockvar said Governor Ueda's tone at the last meeting was hawkish enough that market-implied odds of a September Japanese hike have roughly doubled to about 50%, up from 25%. His view is blunt: "I'd be shocked if they did not [hike], because then this intervention is going to be all for naught." Bank of America's Yamada made the same point from the other side, because the US has now put its own credibility on the line, Japan "cannot indefinitely rely on intervention," and the coordination itself implies Tokyo is "prepared to respond with a comprehensive package, including faster BOJ hikes."

6. The plumbing is the point: a weaker dollar without spooking the bond market

One more thread from this week's podcasts is worth understanding, because it reframes what the yen rescue actually was. On Forward Guidance (Aug 7), the hosts laid out the mechanics and their meaning.

Here's the clever bit in plain English. Treasury Secretary Scott Bessent needed dollars' worth of firepower to buy yen. If he'd raised those dollars by selling US government bonds, he'd have pushed US borrowing costs up, the last thing anyone in Washington wants. So instead he sold euros (from a special Treasury reserve fund), and let Japan borrow the dollars it needed against its own bond holdings through a Fed facility, rather than selling those bonds. The net effect, the hosts argued, was to engineer a weaker dollar "without spooking the bond market."

Their bigger claim is that this is a new regime, they called it "fiscal dominance" and "state capitalism," and even reached for the phrase "generational Plaza Accord-esque." The idea: the Treasury, the Fed and the White House are now coordinating closely (reportedly talking constantly) to keep market volatility suppressed and the dollar gently lower, stepping in precisely when bond-market stress threatens to spike. There's a sting in the tail, and the hosts named it themselves: doing all this, weaker dollar, extra liquidity, while government spending stays hot is, over time, inflationary. So the very tools being used to calm markets today may be planting the next inflation problem.

The debate

For once both sides have real weight, and the pivot between them is a single number due Wednesday.

The bull-yen / softer-dollar case

Friday handed this camp its catalyst. The US labour market is cooling, the September hike is fading, and the dollar's one-way summer trade is breaking. Setser supplies the yen fundamentals (huge surpluses, cheap currency, a central bank that's about to move). And the positioning is a loaded gun in their favour: on MacroVoices (Aug 6), Patrick Ceresna noted that going into the intervention, speculators held a record 264,000 contracts betting against the yen, the most one-sided reading his data goes back to see, and were still adding to the bet the very week the two governments moved against them. That's the fuel. If the yen ever holds its gains, those bears get forced to buy it back, and the move can feed on itself. He's watching the dollar index at a key support level (99.5); a clean break below "pulls the dollar back into its prior 15-month range", a much bigger correction.

The bull-dollar / it-won't-hold case

The other side has three solid legs. First, nothing structural has changed: the Bank of Japan held rates, so the interest-rate gap that makes the yen unattractive is still enormous, and if Tokyo doesn't hike in September, Setser's own test says the rescue fails. Second, the jobs report may be overstated weakness; if next week's inflation number runs hot, the September hike snaps back and the dollar with it (Frohle, Lizetti). Third, the scary one, that same record short position is a two-way risk. Hedgeye's hosts, on Protect the Pile (Aug 8), warned the intervention could backfire by triggering a disorderly unwind of the whole carry trade, precisely because positioning is so crowded. And on The David Lin Report (Aug 7), the reminder of what that looks like: roughly $14.2 trillion of yen-based swaps and forwards sit outstanding, and the last real unwind, August 2024, sent Japan's stock market down 12.4% and spiked the fear gauge toward 66. A squeeze can rescue the yen and wreck everything else at the same time.

The honest read: the dollar drifting straight back to ¥158.8, after an intervention and a dollar-negative jobs report, is the bears' problem, not the bulls'. If even that combination can't hold the yen up, the market is telling you the fundamentals still point the old way until the Bank of Japan actually acts.

Trades in play

The yen is a bet on the Bank of Japan, not on the Treasury. Setser's framing is the cleanest: own the yen if you believe Tokyo hikes in September (and again after). If you don't, the rescue is a bridge to nowhere. Watch the September Japanese meeting, not the next intervention.
The short-squeeze is the asymmetric setup. With a record short position still largely in place, the risk/reward tilts toward a sharp yen rally if it can string together a few strong days, but the same crowding means a failed hold could tip into a violent, everything-correlated unwind. High reward, high volatility; size accordingly.
The euro's $1.15 line still matters. Hold it and the path stays open toward the $1.18-$1.20 zone; lose it and the old bearish euro case is back. But note the new mechanical headwind: if Washington keeps funding yen purchases by selling euros, that's a quiet drag with no ECB fingerprints on it.
Wednesday's US inflation print is the real trade. More than the jobs report, it decides September. Two cool readings and the doves (and the softer dollar) win; one hot one and the hike, and the dollar, come roaring back. Everything in FX this week is a bet on that number.
Sterling and the franc are expressions of the dollar, not standalone ideas right now. Cable at $1.35 is riding the weaker dollar; the franc stays firm and remains the market's preferred currency to borrow. There was no fresh domestic driver for either this week, so there's no domestic trade to force.

Read-throughs

The dollar index is the master switch. Ceresna's 99.5 level on the dollar index is the line to watch: hold it and this is a pullback; break it and it's the start of something bigger, dragging every dollar-sensitive asset, emerging markets, commodities, gold, along.
Gold is voting for the weaker-dollar story. Gold broke out about 4% this week, and the move was broad, silver, platinum, copper and miners all turned up together (MacroVoices). Boockvar tied it directly to Bessent openly wanting "a stronger yen and a weaker dollar." When the government tells you it wants a weaker dollar, hard assets listen.
Japanese and Western bond markets are joined at the hip. Boockvar's read-through is the important one: if the Bank of Japan finally hikes and, counterintuitively, long-term Japanese yields fall as inflation fear eases, that could relieve upward pressure on US and European long-term borrowing costs too, since "we're all highly correlated here." A Japanese hike could be good news for bonds everywhere.
US Treasuries are quietly in weaker hands. The mechanism Japan used, borrowing dollars against its bonds rather than selling them, tells you those bonds are now "a source of funds," not a buy-and-hold, in foreign hands (Boockvar). With China having halved its holdings and its currency at a three-year high against the dollar, the marginal foreign appetite for US government debt is thinning. That's a slow-burn dollar risk.
The carry unwind is the tail that eats everything. $14.2 trillion of yen-based positions and a 2024 precedent of a 12.4% stock crash (David Lin) is the reason the yen matters far beyond Japan. The scenario nobody wants: the yen finally rallies hard, forces a scramble to unwind leveraged bets worldwide, and a currency win becomes a global risk event.
Sterling and the franc, honestly. No dedicated podcast made a UK or Swiss case this week. Cable sits at $1.35, a passenger on the dollar. The franc stays strong (the dollar buys about CHF 0.808) and keeps turning up as the world's new borrowing currency of choice, the role the yen is becoming too dangerous to fill. We'll flag that plainly rather than manufacture a story that wasn't there.

What changed

One week ago the entire market was holding its breath for the US jobs report, waiting to learn whether the historic yen rescue would stick. Now we know two things.

First, the jobs report changed the Fed calculus, and with it the dollar's floor. A negative payroll number pulled the September rate hike from near-certain to a coin flip, dropped short-term yields, and knocked the dollar off its summer highs. The one-way "American exceptionalism" dollar trade is now a two-way argument.

Second, and this is the more important lesson, the yen rescue has, so far, failed its own test. Given every possible tailwind this week (a government defending it, and a falling dollar), the yen still slid back to about ¥158.8, essentially where it started. That is exactly what Setser, Yamada and Boockvar all warned about from different angles: intervention buys time, but only a Bank of Japan rate hike buys strength. The gap between Japanese and American interest rates, the engine of the whole thing, is still wide open.

So the calendar hands off again, this time to a smaller but sharper date: Wednesday's US inflation report. A soft number keeps the September hike buried, keeps the dollar heavy, and gives the yen bulls their opening. A hot one revives the hike, snaps the dollar back, and reminds everyone why the yen keeps sinking. And looming behind all of it is the September Bank of Japan meeting, the real verdict on whether two governments spent tens of billions buying the yen a permanent rescue, or a very expensive month.