Most people discover forex and immediately jump to the question: “How do I make money from this?”
That’s the wrong first question.
The right question is: “How does this market actually work?” Because until you understand what moves prices and why, you’re not trading you’re guessing. And guessing in forex is expensive.
Let’s fix that.
No Central Forex Exchange
Here’s the first thing that surprises most beginners: the forex market has no central location.
When you buy shares on the Nigerian Exchange Group (NGX) or the New York Stock Exchange (NYSE), all trades go through one central exchange. There’s a building, a system, a single point where everything is matched and recorded.
Forex doesn’t work like that.
Instead, it operates as an OTC market “Over The Counter”. This means trades happen directly between participants through a global network of banks, brokers, and electronic systems. There’s no single building, no single exchange, no one central authority running it all.
This is why forex can run 24 hours a day. When Lagos closes, London is open. When London winds down, New York picks up. When New York sleeps, Tokyo is already moving. The market follows the sun.
CHECK OUT: What is Forex Trading? Everything A Beginner Needs To Know
Who Actually Sets the Price?
If there’s no central exchange, who decides that USD/NGN is 1,550 and not 1,600?
The answer is Supply and Demand and the participants who create it.
Think of it like the price of tomatoes in Mile 12 Market. If supply is high and fewer people are buying, the price drops. If everyone suddenly wants tomatoes and the supply is low, the price goes up. No single person sets the price the market does, through the collective activity of buyers and sellers.
Forex works the same way. If more people are buying Dollars and fewer people are selling them, the Dollar strengthens. If everyone is dumping Dollars and buying Euros, the Dollar weakens against the Euro.
The price you see on your trading platform at any given moment is simply the best available price based on current supply and demand across the entire global network.
Where the Real Action Happens
At the top of the forex food chain is the Interbank Market a network of the world’s largest banks trading currencies with each other directly.
Banks like JPMorgan Chase, Citibank, Deutsche Bank, and others trade billions of dollars between themselves every day. They do this for their own profit, on behalf of large corporate clients, and to fulfil international transactions.
This interbank activity sets the baseline prices that flow down to everyone else, including the broker platform you’ll eventually use to place your trades.
Below the interbank level, you have:
- Electronic Brokers and Platforms that aggregate prices from multiple banks
- Retail Forex Brokers who take those prices and offer them to individual traders like you
- Traders (that’s you) sitting at the very bottom, accessing the market through a broker
What Actually Moves Forex Currency Prices?
This is the part that matters most for trading. Prices don’t move randomly they move because of real events and forces. Here are the main ones:
Interest Rates – This is the single biggest driver of currency values. When a country raises its interest rates, its currency tends to strengthen because higher rates attract foreign investors looking for better returns on their money. When the US Federal Reserve raises rates, the Dollar usually strengthens. When the CBN adjusts rates, the Naira reacts.
Inflation – High inflation erodes a currency’s purchasing power. Countries with lower, stable inflation tend to have stronger currencies over time. This is one of the reasons the Naira has weakened significantly against the Dollar over the past decade Nigeria has consistently had higher inflation than the US.
Economic Data – Reports like GDP growth, unemployment figures, and trade balances tell the market how healthy an economy is. Strong data = stronger currency. Weak data = weaker currency. These reports are released on scheduled dates and can cause sharp price moves within seconds of publication.
Political Stability and Government Policy – Markets hate uncertainty. Elections, government policy changes, and political crises can cause a currency to drop sharply, even before anything actually happens. The mere expectation of instability is enough to move prices.
Market Sentiment – Sometimes the market moves not because of hard data, but because of how traders feel. If the majority of traders believe the Dollar will rise, they buy Dollars and that buying pressure itself pushes the price up. Sentiment can be self-fulfilling.
Central Bank Interventions – Central banks sometimes step directly into the market to buy or sell their own currency to influence its value. The CBN has done this multiple times to defend the Naira. When this happens, the effect on price can be immediate and dramatic.
How a Trade Actually Gets Executed
When you place a trade on your broker’s platform, here’s what happens behind the scenes in a matter of milliseconds:
- You click “Buy EUR/USD” on your trading platform
- Your broker receives the order
- The broker either fills the order from its own inventory or passes it to a liquidity provider (usually a large bank)
- The trade is executed at the best available price
- Your account is updated instantly showing your open position, current profit or loss, and available margin
The whole process takes less than a second. From your end, it feels instant. But underneath, it’s a chain of systems and institutions working together at high speed.
The Bid Price, the Ask Price, and the Spread
Every currency pair has two prices at all times:
- The Bid — the price at which the market will buy from you (your selling price)
- The Ask — the price at which the market will sell to you (your buying price)
The difference between these two prices is called the spread, and it’s how most brokers make their money. You don’t pay a visible commission the spread is built into every trade.
For example, if EUR/USD has a Bid of 1.0850 and an Ask of 1.0852, the spread is 2 pips. (We’ll explain pips in detail in the next article.)
The tighter the spread, the less you’re paying per trade. This is one of the things to look out for when choosing a broker.
The Market Is Bigger Than Any Single Player
Here’s something worth understanding before you ever place a trade: no individual trader no matter how wealthy or experienced can move the forex market on their own.
Even the largest hedge funds in the world represent a tiny fraction of the $7 trillion traded daily. This protects you in one important way: the price you see is a true market price, not one that someone has manipulated specifically against you.
However, central banks are a different story. When the US Fed speaks or the CBN intervenes, the market listens. These are the only players big enough to meaningfully move prices and as a trader, learning to anticipate their moves is one of the most valuable skills you can develop.
The Bottom Line
The forex market is a decentralised, global network where currencies are bought and sold 24 hours a day based on supply and demand. Prices are driven by interest rates, economic data, political events, and market sentiment. Your trades flow through a broker to a chain of liquidity providers all happening in milliseconds.
Understanding this isn’t just background knowledge. It’s the foundation of every good trading decision you’ll ever make.
👉 Next up: Major, Minor & Exotic Currency Pairs Explained — and Which Ones Nigerian Traders Should Focus On