The call
Conditionally short EUR/USD if euro-area data weakens the near-certain ECB hike and US data keeps a Fed hike live.
What was priced
The starting line matters.
- ECB, 10 September
- 96.6%chance of a 25bp hike in swap pricing
- Fed, 16 September
- 57.5%chance of a 25bp hike after Jackson Hole
- Euro-area August HICP
- 3.0%headline consensus; 2.6% core
- US August payrolls
- 55–60ksurvey range; 4.2% unemployment expected
Snapshot at publication, 30 August 2026. Probabilities are market-implied, not certainties; survey expectations vary by source.
The thesis
Do not predict every release. Watch which expectation can move.
The euro already carries a strong presumption that the ECB will hike. Merely confirming that view may add little. A softer inflation mix, especially in core or services, could instead remove part of that support.
On the US side, Chair Warsh described inflation as too high and the labour market as stable. A resilient jobs or activity print could move a still-divided market towards a Fed hike. Either repricing would tend to widen the relative two-year rate outlook in the dollar’s favour.
Transmission
The view in one line.
or firmer US data→ECB odds fall
or Fed odds rise→Relative short rates
favour the dollar→EUR/USD lower
Catalysts
A sequence, not one heroic forecast.
German inflationFirst read on whether Europe’s energy shock is broadening.
Euro-area inflation; US ISM and JOLTSThe cleanest first comparison of European prices and US activity.
ADP, claims, services and payrollsTests whether the US labour market is merely slow or actually weakening.
ECB decision; US producer and consumer pricesThe thesis meets policy and the final major US inflation evidence.
Federal Reserve decisionThe end of this research window, not an excuse to rewrite the original call.
Decision rule
What would support or kill it.
Euro core or services inflation undershoots expectations, or US employment/activity beats expectations, and the relative two-year rate spread moves with the surprise.
The releases split, policy odds barely change, or EUR/USD moves without confirmation from rates. Keep the idea conditional.
Euro inflation stays broad and sticky while US labour or inflation weakens enough to reduce Fed hike pricing. The relative-rate mechanism points the wrong way.
Expression and risk
Why EUR/USD, and what can overwhelm it.
EUR/USD was the direct expression because the disagreement concerned the relative ECB and Fed policy paths. The strongest counterargument was that both hikes were already partly reflected and the exchange rate could respond more to energy, risk sentiment or positioning than to a small change in policy odds.
No entry level or position was recorded. Publishing the conditions first prevents a later move from being mistaken for a pre-existing thesis.
Dated updates
Initial view recorded. Short EUR/USD only if diverging Fed and ECB expectations widened the US–German two-year spread in the dollar’s favour. No position was taken.
Conditions remained mixed. The scheduled catalysts were checked, but no contemporaneous update was published. Neither policy pricing nor relative two-year rates produced a clean dollar signal, so the idea remained conditional and no position was taken.
The two sides moved together. After US producer-price data, reported September Fed-hike pricing rose from roughly 62% to about 70%. The ECB also raised its deposit rate to 2.50%, and market reporting showed further ECB tightening being added. US and German two-year yields each rose by about 13bp on separate daily-close series, leaving the relative spread broadly unchanged. EUR/USD moved lower, but the entry condition was not met.
Research closed at 06:20 BST. The euro-side condition had moved against the thesis and the required relative-rate mechanism had not appeared. The idea was archived before the original 16 September endpoint. No position was taken.
Outcome
The setup never activated.
The dollar side improved as US inflation data kept a Fed hike live. That was not enough: the ECB also became more hawkish, so the US–German two-year spread did not widen in the dollar’s favour.
This is a no-trade outcome, not a winning or losing trade. The useful lesson is that supportive US data has little value for this expression when European rates rise alongside it. A later market move would not change whether the original entry conditions were met.
Original view published 30 August 2026; review cut off at 06:20 BST on 11 September 2026. Figures use published releases or daily-close conventions and may not be timestamp-matched. Independent student research for education only; not investment advice.