Currency prices move because buyers and sellers continuously disagree about value. At any moment, someone believes the euro is going up and someone else believes it is going down. The price you see is the point where those disagreements are currently balanced. Understanding what shifts that balance — what makes more people want to buy than sell, or vice versa — is the foundation of all market analysis.
Supply and Demand
At its most fundamental level, a currency rises when demand for it increases relative to supply, and falls when supply increases relative to demand. But currency supply and demand are not driven by physical scarcity — they are driven by the economic attractiveness of holding one currency over another. That attractiveness is primarily a function of interest rates, economic performance, and risk appetite.
Interest Rates
Interest rates are the single most important long-term driver of currency value. When a central bank raises interest rates, it makes holding that currency more attractive — because money deposited in that country's banks earns a higher return. Capital flows from lower-rate currencies to higher-rate currencies seeking that better return, increasing demand for the higher-rate currency and pushing its value up.
When the US Federal Reserve raises rates while the European Central Bank holds steady, capital tends to flow into the dollar — because US assets offer higher yields. This is why interest rate decisions are the highest-impact events on the economic calendar.
Economic Data
Economic data releases — employment figures, GDP growth, inflation reports, manufacturing surveys — move currencies because they shape expectations about future interest rates. Strong employment data in the US suggests the Fed may raise rates. That expectation alone strengthens the dollar, even before any rate change occurs.
The most market-moving data releases include: Non-Farm Payrolls (NFP) in the US, Consumer Price Index (CPI) inflation data across all major economies, GDP growth rates, and central bank meeting minutes and statements. These events appear on the economic calendar and are tracked by every professional market participant.
Market Sentiment
Beyond the fundamentals, currency prices are also moved by market sentiment — the collective mood and risk appetite of global investors. In periods of optimism and economic confidence, investors buy riskier assets — currencies like [AUD], [NZD], and [CAD], which are tied to commodity exports and higher yields. In periods of fear and uncertainty, they buy safe haven assets — [JPY], [CHF], and [USD].
Risk-On (optimism): AUD, NZD, CAD tend to strengthen. JPY, CHF tend to weaken. Risk-Off (fear): JPY, CHF, USD tend to strengthen. AUD, NZD tend to weaken. Gold typically rises.
Geopolitical Events
Elections, trade disputes, military conflicts, and political instability can move currencies sharply — particularly for the currencies of countries directly involved. The British pound dropped significantly during the Brexit referendum in 2016. The Japanese yen strengthened sharply during the financial crisis of 2008 as global risk appetite collapsed.
Geopolitical events are by nature unpredictable. Professional traders manage them through position sizing and stop losses rather than trying to predict outcomes. You will study risk management in depth in Course 11 — Head of Trading.