It buys more Dollars today than on any day in the past three months.
Sterling is at its lowest against the Euro since the start of July.
The larger move against the Dollar is not simply a story of Euro strength. Sterling reached a three-month high against the Dollar on the same day, and the Dollar Index fell to its weakest since mid-May. The Dollar is what moved.
What happened
On Wednesday the US Treasury announced it will at least double the size of its buyback operations for long-dated government debt, lifting the maximum per operation from $2 billion to at least $4 billion.
Treasury had published its quarterly schedule only two weeks earlier. Mid-quarter changes of this kind are rare, and markets read it as a sign of concern rather than routine housekeeping.
It followed a selloff that had driven the 30-year Treasury yield to a 19-year high. Three pressures sit behind that selloff: investors demanding more compensation to hold long-dated US debt, heavy corporate borrowing linked to the AI investment boom competing for the same investor capital, and elevated energy prices from the Iran conflict keeping inflation expectations alive.
Yields fell sharply on the announcement, and the Dollar fell with them against every major currency.
How broad the move was
The Swiss Franc was among the day's largest gainers, with no domestic catalyst of its own. That is the signature of money leaving the Dollar rather than being drawn to somewhere in particular.
The Japanese Yen also gained, which is more telling than it first appears. The Bank of Japan's policy stance normally works against the Yen, so a rally on a day like this reflects the Dollar side of the pair almost entirely.
The Canadian Dollar reached a two-and-a-half-month high, though it had help of its own. The US paused threatened 50% tariffs on Canadian goods hours before they were due to take effect. That pause runs only to 22 August and has been linked to wider trade concessions, so of the three, the Canadian Dollar's position is the least secure.
Three currencies with little in common, all higher on the same day. This was a Dollar event.
If you buy Dollars
Part of the level in front of you was created by a sudden shift in the US bond market, not by a lasting improvement in the Euro's position.
The buyback does not reduce the overall US debt burden. It changes the composition and liquidity of the market rather than solving the underlying fiscal problem. It also carries a deadline: the increase runs only to 4th November, when Treasury reassesses.
The Euro has genuine support of its own. European data has surprised positively through the summer, European equities have outperformed, and markets expect the ECB to tighten further.
That last point is the one worth watching. A good part of the Euro's summer advance rests on the assumption that the ECB delivers more than one further hike. Danske Bank expects a final hike in September and a stop there. Should the ECB guide the same way, some of the premium currently in the Euro comes out.
So: a Dollar held down by a temporary measure with a November expiry, against a Euro held up in part by an expectation that gets tested on 10th September.
If your EUR/USD requirement is confirmed, this is a level worth acting on rather than improving on.
For those with GBP/EUR exposure
The latest move lower in GBP/EUR has not been triggered by a fresh deterioration in the UK outlook. UK inflation landed exactly in line with the economist consensus on Wednesday, and the immediate Sterling reaction was limited.
The move has largely reflected the Euro outperforming Sterling against a weakening Dollar. It is not evidence of a sudden deterioration in the UK economy.
From here it genuinely cuts both ways.
Sterling could recover. UK inflation is stuck above target, which keeps the Bank of England closer to raising rates than cutting them. That is a support the Euro does not have to the same degree.
Sterling could fall further. The UK 30-year gilt is approaching the 6% level last seen in 1998. Public debt sits near 95% of GDP, debt interest exceeds £100 billion a year, and close to a quarter of the gilt market is inflation-linked, which lifts the government's interest bill automatically when energy prices rise. UK yields tend to rise further than others when global yields rise. If the selloff resumes and gilts take the brunt, Sterling gets cheaper still.
Two credible paths, opposite directions, both live. That is an exposure to hedge rather than to time.
Do not assume the summer highs come back on their own. Cover the portion you cannot afford to have move against you, leave the rest open, and revisit in September.
What to watch
22nd August. The pause on US tariffs against Canada expires. Anyone with Canadian Dollar exposure should treat this weekend as a live event rather than a formality.
27th August. The ECB publishes the accounts of its July meeting. This is the next real read on how divided the Governing Council is, and it arrives well before the decision itself.
9th September. The enlarged buyback operations begin. This tells you whether the intervention holds the long end or merely bought three weeks.
10th September. The ECB decision, and a projection round, so it comes with new staff forecasts. The hike itself is already priced. The guidance and the forecasts are what move the Euro.
Energy.
Brent remains elevated with the Strait of Hormuz still disrupted. Higher energy costs weigh on the Eurozone as an importer and lift UK inflation-linked debt servicing at the same time, which makes it one of the few risks working against both currencies at once.
Speak to Lamera Capital for in depth analysis.