September's Central Bank Divide: Where Could FX Divergence Emerge?
Key Takeaways
- •Four major central banks — the ECB, the US Federal Reserve, the Bank of England and the Bank of Japan — announce policy decisions within an eight-day span in September.
- •Markets assign a high probability to a 25-basis-point ECB rate hike on 10 September, while the Fed is expected to hold on 16 September and the BoE may keep the Bank Rate unchanged on 17 September.
- •The Bank of Japan concludes the sequence on 18 September, with markets increasingly considering a 25-basis-point hike that could offer lasting support for the yen, long used as a low-yield funding currency in carry trades.
- •Currency pairs including EUR/USD, GBP/USD, EUR/GBP, USD/JPY and EUR/JPY could all react as markets reassess the expected paths of interest rates.
- •Gary Thomson notes that changes in expectations, rather than the policy decisions alone, may drive FX moves, with subsequent inflation and labour-market data shaping expectations for future meetings.

In a new video analysis, FXOpen's Gary Thomson examines the cluster of major central bank meetings scheduled for September and asks whether diverging policy paths could shape moves across key currency pairs. Because interest-rate differentials are among the most closely watched drivers of exchange rates, a run of policy decisions compressed into just over a week concentrates attention on how those differentials may evolve.
ECB — 10 September
The European Central Bank's Governing Council, which sets monetary policy for the euro area, meets on 10 September. Markets are pricing a high probability of a 25-basis-point rate hike, and the focus will be on whether the ECB signals that further tightening is still possible — guidance that typically comes through the policy statement and the President's post-decision press conference.
Fed — 16 September
The US Federal Reserve follows with its decision on 16 September. Although markets lean towards a hold, renewed inflation pressure could bring a hike back into focus. September is also one of the four FOMC meetings a year accompanied by the Summary of Economic Projections, including the "dot plot" of officials' rate expectations, which offers guidance beyond the decision itself.
BoE — 17 September
The Bank of England's rate-setters announce their decision on 17 September. UK inflation remains elevated, but slowing wage growth and a softer labour market could keep the Bank Rate unchanged. The nine-member Monetary Policy Committee's vote breakdown is published alongside the decision and is closely read as a gauge of the balance of opinion.
BoJ — 18 September
The Bank of Japan's Policy Board concludes the sequence on 18 September. Markets are increasingly considering a 25-basis-point hike, and a central question is whether tighter Japanese policy could provide lasting support for the yen. Japanese rates remain far below those of the Fed, ECB and BoE, and the yen has long been used as a low-yield funding currency in carry trades — a positioning backdrop that markets weigh when the BoJ adjusts policy.
FX divergence in focus
Divergence, in this context, means central banks moving in different directions or at different speeds, shifting the rate differentials that underpin currency valuations. Currency pairs including EUR/USD, GBP/USD, EUR/GBP, USD/JPY and EUR/JPY could all react as markets reassess the expected paths of interest rates.
With four major central bank decisions taking place in just eight days, Thomson notes that it may be the changes in expectations — not only the decisions themselves — that drive FX moves. In the wake of the meetings, the next rounds of inflation and labour-market data typically feed expectations for the decisions that follow.
Watch the full video here. Source: FXOpen Blog.
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