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Market participants

Central bank

By Jarosław Wasiński • Published: • Updated:
A national institution responsible for monetary policy, interest-rate decisions, and – in many cases – direct intervention in the foreign exchange market. Major central banks include the Fed, ECB, BOJ, BOE, and SNB. See Central banks & forex.
Example.

In a hypothetical scenario, a central bank raises its rate by 25 basis points while the market expected 50. This is tightening relative to the previous rate but softer than the priced scenario. The currency may weaken if the expected future path changes; the decision's sign alone does not determine a trade.

Mandate and instruments

A bank operates under its local mandate, such as price stability and employment. Rates, liquidity operations, asset purchases and communication affect financing conditions. Not every central bank targets its exchange rate, and responsibility for FX intervention varies by country.

Decision versus expectations

Compare the announcement with the previous scenario, projections and the path implied by market rates. A press conference can change the first headline's interpretation. Policy for the other currency in the pair can matter just as much.

Preparing for a release

Record the source time zone, related conferences, exposure and acceptable risk. A stop order may fill adversely during a gap or thin liquidity. Avoiding an event does not itself establish an edge either.

Primary source checked 11 October 2026: www.boj.or.jp.

FAQ

Does a rate increase always strengthen a currency?

No. A smaller-than-expected increase, different projections or stronger tightening in the other currency can produce a different response.

Does a central bank set every FX price?

No. Exchange-rate arrangements can be floating, fixed or intermediate; policy influences conditions without controlling every quote.

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Jarosław Wasiński

Editor-in-chief, ForexMechanics.com • Macro & FX analyst

Independent analyst and practitioner with over 20 years of experience in financial markets. Actively involved in Forex since 2007, with a focus on fundamental analysis, OTC market structure, and disciplined capital risk management.

  • Creator and editor-in-chief of MyBank.pl, providing reliable financial education since 2004.
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