Forex (Foreign Exchange Market)
How the Forex Market Works
Unlike stock exchanges, forex has no central physical location. It’s an over-the-counter (OTC) market — a global network of banks, brokers, institutions, and individual traders connected electronically. Currencies are always traded in pairs (e.g., EUR/USD), and every trade simultaneously buys one currency and sells another.
The price of a currency pair is called the exchange rate, which fluctuates based on supply and demand driven by economic data, interest rates, geopolitics, and market sentiment.
Major Market Participants
| Participant | Role | Share of Volume |
|---|---|---|
| Central Banks | Set monetary policy and intervene in FX markets to stabilize their currency | Significant but varies |
| Commercial Banks | Execute client orders and trade on their own account (interbank market) | ~40-50% |
| Institutional Investors | Hedge funds, pension funds, and asset managers trading for portfolio purposes | ~25-30% |
| Corporations | Hedging foreign revenue and expenses from international operations | ~5-10% |
| Retail Traders | Individual traders using online platforms — small share but growing | ~5-7% |
Forex Trading Sessions
| Session | Hours (EST) | Key Pairs | Character |
|---|---|---|---|
| Sydney | 5:00 PM – 2:00 AM | AUD/USD, NZD/USD | Quieter; sets the tone for Asia |
| Tokyo | 7:00 PM – 4:00 AM | USD/JPY, EUR/JPY, AUD/JPY | Moderate volatility; yen pairs active |
| London | 3:00 AM – 12:00 PM | EUR/USD, GBP/USD, EUR/GBP | Highest volume session; sets daily trends |
| New York | 8:00 AM – 5:00 PM | EUR/USD, USD/CAD, USD/CHF | Major economic releases; London-NY overlap is peak liquidity |
Key Forex Concepts
| Term | Definition |
|---|---|
| Currency Pair | Two currencies quoted against each other (e.g., EUR/USD = how many USD per 1 EUR) |
| Pip | Smallest standard price move — typically 0.0001 for most pairs (0.01 for JPY pairs) |
| Bid-Ask Spread | Difference between buy and sell price — your cost of entry. Tighter = more liquid |
| Lot Size | Standard lot = 100,000 units; mini = 10,000; micro = 1,000 |
| Leverage | Borrowed capital to amplify position size — retail FX often offers 50:1 to 500:1 |
| Margin | Collateral required to hold a leveraged position |
Forex vs. Stock Market
| Criteria | Forex | Stock Market |
|---|---|---|
| Market Hours | 24/5 (continuous across sessions) | Exchange-specific hours (e.g., 9:30 AM–4 PM EST) |
| Daily Volume | ~$7.5 trillion | ~$200–400 billion (US equities) |
| Leverage | Typically 50:1 to 500:1 | Typically 2:1 (Reg T margin) |
| Number of Instruments | ~180 currency pairs (most volume in ~8 majors) | Thousands of individual stocks |
| What Drives Price | Interest rates, macro data, geopolitics | Company earnings, sector trends, macro conditions |
Key Takeaways
- Forex is the world’s largest market at $7.5+ trillion daily volume, trading currencies in pairs 24/5.
- It’s an OTC market driven by banks, institutions, and central banks — with retail traders a small fraction.
- The London-New York overlap (8 AM–12 PM EST) is the peak liquidity window.
- High leverage amplifies both gains and losses — the majority of retail FX traders lose money.
- Currency movements are driven by interest rate differentials, economic data, and geopolitical events.
Frequently Asked Questions
What is forex trading?
Forex trading is buying one currency while simultaneously selling another. All currencies trade in pairs — for example, buying EUR/USD means you’re buying euros and selling US dollars. You profit if the currency you bought appreciates relative to the one you sold.
How much money do you need to start forex trading?
Technically, some brokers allow accounts with as little as $50–$100 using micro lots. However, undercapitalized accounts combined with high leverage is a recipe for rapid losses. Most prudent traders recommend starting with at least $2,000–$5,000 and using conservative leverage.
What are the most traded currency pairs?
The seven major pairs account for about 80% of all forex volume: EUR/USD (the most traded), USD/JPY, GBP/USD, USD/CHF, AUD/USD, USD/CAD, and NZD/USD. All include the US dollar on one side. See currency pair for more detail.
Is forex riskier than stocks?
The instruments themselves aren’t inherently riskier — major currency pairs often move less in percentage terms than individual stocks. The risk comes from leverage: retail FX platforms offer 50:1 to 500:1 leverage, meaning a 1% move can wipe out a significant portion of your account. Stocks typically allow only 2:1 leverage.
What moves forex prices?
The primary drivers are: interest rate decisions by central banks (the single biggest factor), economic data releases (GDP, employment, inflation), geopolitical events, trade flows, and market sentiment. Carry trade dynamics — borrowing low-rate currencies to invest in high-rate ones — also play a significant role.