Forex

Forex for Beginners: How the Currency Market Works

Astron Team · 09/24/2026 · 4 min read

Forex is short for foreign exchange, the market where currencies from different countries are traded against each other. It's the world's largest financial market by traded volume, running almost continuously during the week, since different financial centers — Sydney, Tokyo, London, New York — open and close at successive hours around the globe.

How a currency pair's quote works

In forex, you always trade a pair: one currency against another. In the EUR/USD pair, the base currency is the euro and the quote currency is the dollar. A quote of 1.0850 means 1 euro buys 1.0850 dollars. If you believe the euro will strengthen against the dollar, you buy the pair; if you believe the opposite, you sell. The trade's result comes from the change in that relationship between the two currencies, not from the absolute value of either one on its own.

What a pip is and how to calculate the result

A pip is the smallest standard price change in a currency pair — usually the fourth decimal place, except in pairs with the Japanese yen, where it's the second. If EUR/USD moves from 1.0850 to 1.0870, that equals a 20-pip change. The money value of each pip depends on the traded lot size: on a standard lot of 100,000 units of the base currency, each pip is usually worth about US$ 10.00; on a mini lot of 10,000 units, about US$ 1.00 per pip. A 20-pip change on a mini lot would therefore represent a result of US$ 20.00 — positive or negative, depending on the trade's direction.

The role of interest rates and economic policy

A currency's relative value reflects, among other factors, the interest rate set by the country's central bank, the level of economic activity, and inflation expectations. When a central bank signals a rate hike, that country's currency tends to strengthen against others, attracting capital seeking higher returns. This type of decision is usually announced on public economic calendars, and its release is one of the events that generates the most volatility in the currency market over short periods.

Leverage: common in forex, and therefore risky

It's common to trade forex with leverage, controlling an exposure amount much larger than the capital deposited as margin. If a US$ 200.00 margin controls a US$ 10,000.00 position (50 times leverage), a change of just 2% in the pair already represents a US$ 200.00 result — equivalent to 100% of the deposited margin. This same leverage that amplifies the potential gain equally amplifies how quickly a position can be liquidated in case of an adverse move.

First steps for beginners

• Choose one or two currency pairs to follow consistently, instead of trading several at once with no context.
• Practice calculating pip and lot value before trading with real money, until it becomes automatic.
• Follow the economic calendar of the countries whose currencies you trade, avoiding opening a position minutes before major releases without a plan for it.
• Use much less leverage than the maximum available while you're still testing a method — the limit offered by the broker isn't a recommendation of how much to use.

The currency market isn't inherently riskier than other markets, but the high leverage available in it demands extra attention to position size relative to total capital. Understanding this mechanism before trading is what separates a calculated trade from a bet with numbers you haven't checked.

Factors that also deserve attention

Besides interest rates, factors like trade balance, employment data, and relevant political events in each country affect its currency's value in the short and medium term. A country that exports more than it imports tends to have steady demand for its currency, which can sustain appreciation over time; an unexpected political crisis, on the other hand, tends to trigger capital outflows and rapid depreciation. Following these factors, even superficially, helps you understand the context behind the moves that show up on the chart, instead of trading while looking only at lines and candles with no backdrop.