forex (foreign exchange) is the global marketplace where one currency is exchanged for another. It is the largest and most liquid financial piyasa in the world, işlem around the clock across the major financial centres.
Why the piyasa exists
Every time a company imports goods, a tourist buys local currency, or a fund hedges international exposure, currency changes hands. Those gerçek-world flows — işlem, investment, tourism, central-bank policy — are the foundation underneath every price you see on a chart.
How big and how liquid
günlük turnover is measured in trillions of dollars. For a retail yatırımcı, what matters is the practical consequence of that size: the major pairs are deeply liquid, spreads are tight, and you can usually enter and exit without moving the price. Liquidity is highest when London and New York overlap.
Who participates
The piyasa is layered: central banks and governments, large commercial banks, corporations, hedge funds and asset managers, brokerlar, and finally retail yatırımcılar. Retail flow is a small fraction of hacim, which is why no honest educator promises you can 'beat the banks' — the realistic goal is a disciplined, risk-controlled process.
What you are actually işlem
You never take delivery of physical currency. You işlem theexchange ratebetween two currencies as a pair, profiting or losing from changes in that rate. The mechanics of pairs, pips and lot are covered in the next lessons.
Key takeaways
- forex is the global piyasa for exchanging one currency for another.
- It is the most liquid piyasa in the world; majors have tight spreads.
- gerçek flows — işlem, investment, policy — drive prices underneath the chart.
- Retail yatırımcılar are a small part of the piyasa; process beats prediction.