Welcome to forex — a real profession, not a side hustle
What the world's largest market actually is, who plays in it, and why this is a craft you can learn properly — starting today.
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Forex in 60 seconds
Forex is the market for swapping one currency into another. It moves $7.5T a day, runs 24 hours, and the unit of measurement is the pip.
- A pair like EURUSD = price of 1 euro in dollars. EURUSD = 1.0875 means you'd pay $1.0875 for €1.
- There are two prices on every screen: bid (where you sell) and ask (where you buy). The gap is the spread — the market-maker's cut.
- Smallest standard move = 1 pip = 0.0001 on most pairs. One pip on a 0.01 lot ≈ $0.10. That's the unit your craft is measured in.
- The market runs 24/5: Sydney opens Sunday evening; New York closes Friday evening. London + New York overlap is when most of the action happens.
- Big names play here: JP Morgan, Citi, Deutsche Bank, Goldman, central banks, hedge funds, you. The same prices, the same screen.
If you want one moment that shows what forex actually is, watch this:
USDJPY fell from 162 to 142 in three weeks as Tokyo finally moved — a once-in-a-generation FX swing visible on every chart.
SourcePair quote explorer — simulated, for illustration
These quotes are NOT a live market feed — they're a deterministic simulation that shows how real ones move and how the spread behaves. In MT5 you'll see your broker's actual ticks on these same pairs (we set MT5 up in Lesson 2). Click any pair below to see what one pip is worth on a 0.01 lot.
Approximate; pip value depends on the quote currency and your account currency.
What you're actually looking at
A pair is just a price tag in two languages
When you stand at an exchange booth in any airport, the board shows two columns: one is what they pay you for a euro, the other is what they charge you for one. Forex is that booth, except global, electronic, and running every second of every weekday.
A currency pair is a *single price* that expresses one currency in terms of another. EURUSD = 1.0875 means a euro costs $1.0875 right now. EURUSD = 1.0876 the next second means the euro got slightly more expensive in dollar terms. That's it. Every chart, every signal, every strategy in this course is, at its root, a reaction to that number moving.
Bid and ask — the two prices every trader sees
There are always two prices on the screen, not one. The bid is what the market is willing to pay you for the base currency — i.e. the price *you receive* when you sell. The ask is what the market is willing to sell you for — i.e. the price *you pay* when you buy. The ask is always slightly higher than the bid. The gap is called the spread.
Why a gap? Because the entity quoting the price — your broker, an interbank desk, a market-maker — is taking on inventory risk by standing ready to trade either side. The spread is their compensation for that risk. It's also your most basic cost of doing business: every trade pays the spread on entry.
The pip is the unit of measurement
If you only learn one number this lesson, learn the pip. For most pairs, one pip is 0.0001 — the fourth decimal place. For yen pairs (USDJPY, EURJPY, etc.), one pip is 0.01 — the second decimal. Everything else in forex is expressed in pips: spreads, stop-losses, take-profits, daily ranges, broker costs.
Pips translate to money via the lot size. A *standard* lot is 100,000 units of the base currency. A *mini* lot is 10,000 units (0.1). A *micro* lot is 1,000 units (0.01). On a 0.01 lot of EURUSD, one pip is worth roughly $0.10. On a 0.10 lot it's roughly $1. On a 1.00 lot it's roughly $10. Most beginners start on micro lots — the per-pip risk is small enough to learn on without anything dramatic happening to your account while you do.
Who's actually on the other side of your trade
Forex isn't a single building. It's a network. The biggest players are interbank desks at JP Morgan, Citi, Deutsche Bank, Goldman Sachs, UBS, HSBC — about a dozen names handle the bulk of global flow. Around them: central banks (the Federal Reserve, ECB, BoJ, BoE, SNB), corporate treasuries hedging multinational revenue, asset managers rebalancing global portfolios, hedge funds running carry and macro strategies, prop firms, and retail traders.
Your broker is your access point. They aggregate liquidity from those upstream sources and offer it to you, taking a slice (the spread, sometimes a commission) for the service. When you click 'Buy' on EURUSD at 1.0875, that price came from somewhere upstream a millisecond ago. You're trading the same number a Citi trader in London is staring at — just through a different door.
Key terms
A 2024 story that tells you what FX really is
Markets are alive. Here is what 'alive' looked like in 2024.
USDJPY fell from 162 to 142 in three weeks as Tokyo finally moved — a once-in-a-generation FX swing visible on every chart.
Three weeks. Twenty yen. No prediction required — just an awareness that real central banks make real decisions and real currencies respond. By the end of this course you'll be reading these moments as they unfold, not three weeks later in the news.
Read the central-bank releasePractice — read one quote, then install MT5
10-minute practice — read one quote, install one platform
Two small steps. Both are unhurried and reversible. Both are how professionals start their first hour.
- 1
Open any free forex quote feed (Investing.com, TradingView, Yahoo Finance). Find EURUSD. Read it out loud: 'One euro currently buys this many dollars.' That's the whole skill of reading a quote.
- 2
Note the two prices (bid / ask). Subtract bid from ask. The difference, in the fourth decimal, is the spread in pips. For EURUSD that should be 0.5–2 pips on a normal day.
- 3
Download MT5 from MetaQuotes (metatrader5.com) or directly from any regulated broker. Install it. Open it. You'll see four panels: Market Watch (top-left), Navigator (bottom-left), the chart area (centre), and Toolbox (bottom). We'll tour these properly in Lesson 2.
- 4
In MT5: right-click in Market Watch → Symbols → add EURUSD if it isn't there. Drag EURUSD onto the chart. You're looking at the same number 350 million other traders are looking at right now.
Mastery check
Five questions. Pass at 4 of 5 (80 %). If you slip, re-read and try again — that's the loop.
Welcome to Forex — quick check
Test your understanding with 5 questions. Pass with 4/5 correct.
Reflect
Reflection
Type your honest answers — saved on this device only. Use them next week to spot patterns in your trading thinking.
Pro deep dive — microstructure of the world's biggest market
If you came in already comfortable with markets, here's the layer underneath the chart you'll start to care about as you progress.
Market microstructure — where the price actually comes from
FX has no central exchange. Price is the output of a distributed network of bank dealing desks, electronic communication networks (ECNs like EBS and Refinitiv Matching), and prime-of-prime brokers. The 'quote' your retail broker shows you is an aggregation: they take the best bid and best ask from a basket of upstream liquidity providers, add a markup (the spread you pay), and present it. Latency between an interbank tick and your retail screen is typically 5–50 milliseconds, sometimes higher during news spikes. This is why slippage exists and why faster connections (and a co-located VPS near the broker's server) matter once you start scaling beyond manual trading.
Daily turnover — what $7.5 trillion actually looks like
The BIS Triennial Survey (most recent: 2022) put global FX daily turnover at $7.5T. For context, the NYSE trades about $200B in equities on a typical day. Of that $7.5T, roughly 40 % is spot FX, 50 % is FX swaps (mostly inter-corporate hedging), and the rest is forwards, options, and currency futures. Retail flow — every CFD and metatrader account combined — is a single-digit percentage of the total. You're a small fish in a very deep ocean; the ocean does not notice you, which is a feature, not a bug.
Why pairs are the right unit
A currency's 'value' only makes sense relative to something else. There is no absolute USD price; there is only USD vs EUR, USD vs JPY, USD vs gold, USD vs a basket. Even the DXY (the dollar index) is just a weighted basket of pair quotes. This is also why FX moves are zero-sum in a way that stocks are not: every long position in a pair is, mechanically, somebody else's short. The instrument *forces* you to think relatively. That habit transfers usefully to every other market you'll touch later.
Bibliography
Show answer
A currency pair is a single price expressing one currency (the base) in terms of another (the quote) — EURUSD = 1.0875 means one euro currently buys $1.0875. The two prices visible at all times are the bid (where you sell, lower) and the ask (where you buy, higher); the gap is the spread, the market-maker's cut. One pip is the smallest standard move — 0.0001 on most pairs, 0.01 on yen pairs — and on a 0.01 lot of EURUSD, one pip is worth roughly $0.10. Every concept in the rest of this course is built on those four numbers.
Educational material only — not investment advice. Trading carries risk of capital loss. Always practice on demo and use a stop-loss. ← Back to Forex Basics