Fear makes the dollar valuable. But fear is temporary.
When the guns between Iran and Israel fell briefly silent at President Trump's urging, the world's currency markets exhaled — and the dollar, which had swelled on fear, gave a little back. This is the ancient rhythm of money in uncertain times: capital rushes toward safety when conflict looms, then disperses again when the immediate threat recedes. Yet the calm is provisional, held in place by a ceasefire that could unravel, and by a week of economic data — American inflation figures, a European rate decision — that will tell traders whether the deeper forces driving the dollar's strength have truly softened.
- A 24-hour exchange of military strikes between Iran and Israel had pushed currency markets into a defensive crouch, with investors piling into dollars and abandoning the euro and yen.
- Trump's appeal for restraint produced a ceasefire that was enough to reverse the flight-to-safety trade, sending the euro and pound modestly higher while the dollar index slipped.
- The yen remains deeply wounded — a $73 billion intervention by Japan's central bank has been entirely erased, and the currency hovers near the psychologically dangerous 160-per-dollar threshold where authorities are expected to act.
- Markets are now split on the Federal Reserve's next move, pricing in only a 40% chance of a rate hike by October, while the ECB is widely expected to raise rates this week — a divergence that will shape the euro's fate.
- Wednesday's U.S. inflation data is the week's pivot point: a hot number would reignite dollar strength, while a benign reading could give other currencies room to recover ground lost during weeks of geopolitical anxiety.
The dollar eased on Monday but held near its highest level in almost two months, as Iran and Israel agreed to halt attacks following President Trump's appeal for restraint. For currency traders, the ceasefire mattered immediately: when geopolitical fear recedes, investors stop sheltering in dollars and begin rotating back into euros, pounds, and other assets that had been depressed by anxiety.
The pause followed the most direct military exchange between the two countries since April — a 24-hour clash that had threatened months of diplomatic effort. That confrontation had coincided with strong U.S. jobs data on Friday, which pushed traders to bet harder on Federal Reserve rate increases and drove the dollar higher. With tensions easing, that trade began to unwind. The euro edged up to $1.1531, the pound climbed above $1.3390, and the dollar index slipped fractionally to 100 — modest moves, but meaningful ones in a market that had been heavily positioned for dollar strength.
The week ahead carries significant weight. The Federal Open Market Committee meets for the first time under new chair Kevin Warsh, with markets pricing roughly a 40% chance of a rate hike by October. U.S. inflation data arrives Wednesday and could either reinforce or undermine those expectations. The ECB, meanwhile, is expected to raise rates this week and again in September. Strategists warn that if the ECB signals only one further hike, it will not be enough to meaningfully support the euro.
The Japanese yen tells the starkest story. It steadied slightly at 160.17 per dollar on Monday, but only after completely erasing the gains from a $73 billion central bank intervention just weeks earlier. The Bank of Japan is expected to raise rates this month — a 25 basis point move already largely priced in — leaving little room for the yen to surprise. Analysts note that 160 per dollar has become a line Japanese authorities are likely to defend. The ceasefire has bought a moment of calm, but the underlying pressures on global currency markets remain very much alive.
The dollar pulled back on Monday, though it remained perched near its highest level in almost two months. The reason was straightforward: Iran and Israel had agreed to stop attacking each other after President Trump appealed for restraint. For currency traders, this mattered enormously. When geopolitical risk recedes, investors stop fleeing to the safety of dollars and start moving their money elsewhere—into euros, pounds, and other assets that had been beaten down by fear.
The ceasefire came after the most direct military clash between Iran and Israel since April, a 24-hour exchange of strikes that had threatened to unravel months of diplomatic effort and push the region toward something far worse. The pause in hostilities was enough to shift the mood in currency markets, which had been jittery and dollar-heavy all week. On Friday, strong U.S. jobs data had spooked traders into betting harder on Federal Reserve rate increases, which typically strengthens the dollar. Now, with geopolitical pressure easing, that trade was unwinding.
The euro ticked up to $1.1531 on the day, though it remained near nine-week lows. The British pound edged above three-week lows to $1.3390. The dollar index, which tracks the greenback against a basket of major currencies, fell 0.07% to 100. These were modest moves, but they signaled a shift in investor positioning. Federal Reserve data showed that in the week before the jobs report, investors had cut their bullish euro bets to a three-month low while piling into bearish yen positions worth more than $10 billion.
The week ahead will be crucial for currency direction. The Federal Open Market Committee meets for the first time under new chair Kevin Warsh, with markets currently pricing in roughly a 40% chance of a rate hike by October. More immediately, U.S. inflation data arrives Wednesday—a number that could either confirm rate-hike expectations or suggest the Fed can ease off the accelerator. The European Central Bank is expected to raise rates this week and again in September as it tries to manage energy-driven inflation against a weakening economy. Kit Juckes, chief foreign exchange strategist at Societe Generale, framed the stakes plainly: a big inflation surprise would likely strengthen the dollar, while benign data could ease rate expectations and tell a different story. Similarly, if the ECB signals it plans only one more hike, that won't be enough to rescue the euro.
The Japanese yen has been the dollar's biggest victim in recent weeks. It strengthened slightly on Monday to 160.17 per dollar, but that gain came after the currency had completely erased the benefits of a 73 billion dollar intervention by Japan's central bank just over a month ago. The yen had slid to its lowest since July 2024 at 160.725 before that intervention. Sources told Reuters that the Bank of Japan is expected to raise rates this month unless the Iran-Israel situation deteriorates sharply and sends energy prices soaring. A 25 basis point hike is widely expected and almost fully priced into markets, leaving little room for the yen to surprise upward. Analysts at Scotiabank noted that 160 yen per dollar has become a major psychological level—a point where Japanese authorities are likely to step in and defend their currency if it weakens further. For now, the ceasefire has bought some breathing room, but the underlying pressures on global currency markets remain unresolved.
Notable Quotes
The big event this week is going to be the ECB rate hike and the U.S. CPI data. If you got a really big upside surprise on U.S. inflation on Wednesday, then I suspect the dollar would get a bid.— Kit Juckes, chief FX strategist at Societe Generale
A 25 basis point rate hike is generally expected and almost fully priced, leaving little in terms of near-term upside. For USD/JPY, we remain focused on the 160 level as a major psychological anchor point for official currency management.— Shaun Osborne, Scotiabank analyst
The Hearth Conversation Another angle on the story
Why does a ceasefire between Iran and Israel move currency markets at all? Aren't those two separate things?
They're connected through investor psychology. When geopolitical risk spikes, traders flee to safe havens—the dollar, Swiss franc, Japanese yen. When that risk recedes, they stop running and start looking for better returns elsewhere. The dollar weakens because it's no longer needed as insurance.
So the dollar was expensive because people were scared?
Exactly. Fear makes the dollar valuable. But fear is temporary. Once the immediate threat passes, investors rotate back into higher-yielding currencies and assets they'd abandoned. That's what happened Monday.
The piece mentions the Fed meeting next week. Why does that matter more than the ceasefire?
Because the ceasefire is a one-day story. The Fed's interest rate decisions shape currency markets for months. If the Fed raises rates, the dollar gets stronger because investors want to hold dollars to earn that higher return. If the Fed stays put, the dollar weakens. The ceasefire just created a window where other factors—like inflation data—can move markets again.
What's the deal with the Japanese yen being so weak?
Japan's interest rates are near zero, so there's no return to holding yen. Meanwhile, the dollar offers higher yields. Investors borrow yen cheaply and invest in dollars—a trade that works as long as the dollar keeps rising. The Bank of Japan tried to stop this with a 73 billion dollar intervention, but it didn't stick. Now they're expected to raise rates this month to make yen more attractive.
If the ECB raises rates this week, shouldn't the euro get stronger?
You'd think so, but it depends on the signal. If the ECB sounds like it's done hiking—like this is the last one—the euro won't move much. If it sounds committed to more hikes, that's different. The market is already pricing in what it expects. Surprises move prices.
So Wednesday's inflation number is the real event?
It could be. If inflation comes in hot, the Fed looks more hawkish, the dollar strengthens. If it's cool, rate expectations ease, and the dollar weakens. But that assumes the ceasefire holds. If Iran and Israel start fighting again, all bets are off.