What are central banks and why do interest rates matter?

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The Editorial Desk • June 10, 2026  AI Technology Central Banks Shares [When Nvidia's Jensen Huang speaks, Asia moves: AI infrastructure stocks to watch](https://gomarkets.com/en-au/articles/ai-infrastructure-stocks-asia-nvidia-supply-chain) What are the five Asian tech and infrastructure stocks linked to the AI buildout? The Editorial Desk • June 10, 2026 [See all News & Insights](https://gomarkets.com/en-au/news-analysis) ## Recent Articles Educational Central Banks Forex [What are central banks and why do interest rates matter?](https://gomarkets.com/en-au/articles/what-are-central-banks-interest-rates-traders) **Part three of GO's educational series, designed to help new traders understand the key forces that shape global markets.** You watch the screen at 2:00 pm. The central bank announces it is holding rates steady. It is exactly what the market expected. Yet the S&P 500 rallies 1% and the [US dollar](https://gomarkets.com/en-au/articles/what-is-the-us-dollar-explained) falls. If a move like this has ever caught you off guard, you are not alone. Many traders know interest rates matter, but struggle to explain why a rate hold, with no change at all, can still trigger sharp market volatility. Why interest rates matter Central bank interest rates are often described as the price of money. Because the price of money affects how investors value many assets, rate expectations can be one of the key forces shaping markets. Contents: [What it is](https://gomarkets.com/en-au/articles/what-are-central-banks-interest-rates-traders#section-what-it-is)· [Hawkish & dovish](https://gomarkets.com/en-au/articles/what-are-central-banks-interest-rates-traders#section-hawkish-dovish)· [Why markets move before](https://gomarkets.com/en-au/articles/what-are-central-banks-interest-rates-traders#section-before-decision)· [What drives expectations](https://gomarkets.com/en-au/articles/what-are-central-banks-interest-rates-traders#section-what-drives)· [Scenarios](https://gomarkets.com/en-au/articles/what-are-central-banks-interest-rates-traders#section-scenarios)· [Market impact](https://gomarkets.com/en-au/articles/what-are-central-banks-interest-rates-traders#section-impact) ## What a central bank interest rate actually is At its core, a central bank interest rate is the rate at which a central bank lends money to commercial banks. That rate then flows through to the broader economy and financial markets. You do not need a degree in economics to trade. But it helps to understand who is setting the price of money, and how markets respond when that price is expected to change. There are five major central banks that play a key role in global capital flows: - **[• The Federal Reserve (Fed)](https://www.federalreserve.gov/)** sets the benchmark cost of capital for the US economy and has a major influence on global financial conditions. - **[• The Reserve Bank of Australia (RBA)](https://www.rba.gov.au/)** influences domestic borrowing costs and the Australian dollar ( [read how the RBA works](https://gomarkets.com/en-au/articles/how-does-the-rba-work)). - **[• The European Central Bank (ECB)](https://www.ecb.europa.eu/)** steers the Eurozone economy and can influence cross-border currency flows. - **[• The Bank of England (BoE)](https://www.bankofengland.co.uk/)** steers the UK economy and heavily influences the British pound. - **[• The Bank of Japan (BoJ)](https://www.boj.or.jp/en/)** remains an important anchor for global liquidity and currency markets. ### RBA 2026 Playbook: The moves behind the rate decision From AUD swings to bank stocks, gold, yields and defensives, map the pressure points traders want on the radar in 2026. [Read the playbook](https://gomarkets.com/en-au/articles/rba-2026-playbook-what-do-markets-watch-in-decision-weeks) [Explore the hub](https://www.gomarkets.com/en-au/academy/rba) ## Hawkish and dovish: the two words traders need to know If you read financial commentary, you will quickly encounter two words: hawkish and dovish. These terms describe the direction a central bank appears to be leaning. They are not the same as good or bad. A central bank is **hawkish** when it leans toward higher interest rates or tighter monetary policy to manage inflation. For example, if a central bank governor says, “We remain highly attentive to inflation risks and are prepared to act,” the market may interpret that as a hawkish signal. A central bank is **dovish** when it leans toward lower rates or easier policy to support economic growth. If a governor notes that “downside risks to the labour market have increased,” traders may read that as a dovish shift. Markets can trade these changes in tone just as aggressively as the actual rate decision. The hawkish vs. dovish spectrum ← Easier Policy/Growth Tighter Polic/Inflation → Dovish "Downside risks to the labour market have increased." - Leans toward lower interest rates - Focuses on supporting economic growth - Often weakens the domestic currency - Generally supports equities and gold Hawkish "We remain highly attentive to inflation risks." - Leans toward higher interest rates - Focuses strictly on managing inflation - Often strengthens the domestic currency - Generally pressures equities and gold Watch expectations, not just the decision A central bank decision is only part of the story. Markets usually move on the difference between what happened and what traders expected to happen. For example, a rate hold can still push markets sharply if the central bank sounds more hawkish than expected. A rate hike may have little impact if traders had already priced it in. The key question is not just, ‘Did they hike, hold or cut?’ It is, ‘Did this change where rates may go next?’ ## Why markets move before the decision is made This is the critical concept: **markets do not wait for central bank decisions. They price in the expected path of rates in advance.** When a central bank announces a rate decision that matches market expectations, the reaction may be limited. The bigger moves often come when the decision, statement or press conference differs from what had already been priced. Imagine a scenario where traders expect a central bank to hike rates three times this year. If the bank hikes today but hints that this may be its final increase, the market could treat that hike as a dovish surprise. Equities may rally even though the rate was increased. Common trap A rate cut can disappoint if traders expected a bigger cut, or if the central bank signals fewer cuts ahead. A rate hike can be taken well if it is smaller th