Forex, in plain English.
The opening of the desk's beginner forex handbook — currency pairs, pips, leverage, and the trading sessions — no jargon left unexplained, and the risks stated honestly. Research and education only — not financial advice.
What forex actually is
Forex is the market for swapping one currency for another. That's the whole idea. It's the largest market on earth by volume, it runs 24 hours a day five days a week as the sun moves around the financial capitals, and prices move for one reason: the supply of and demand for money itself — driven by interest rates, economic data, and where the world wants to park its cash.
When you "trade forex," you are always doing two things at once: buying one currency and selling another. You're never just betting on a single thing going up — you're betting on a relationship between two currencies.
Reading a pair: base and quote
Every forex price is a ratio of two currencies, like EUR/USD = 1.08. The first currency is the base, the second is the quote, and the number tells you how many units of the quote it takes to buy one unit of the base. So EUR/USD at 1.08 means one euro costs 1.08 US dollars.
When the number rises, the base currency is strengthening against the quote. Go long EUR/USD and you profit if the euro strengthens against the dollar; go short and you profit if it weakens. Both directions carry the same real risk of loss.
Pips and lots: turning a move into a dollar amount
A pip is the standard smallest move in a pair — 0.0001 for most pairs, and 0.01 for pairs quoted in Japanese yen. A lot is the size of your position: a standard lot is 100,000 units, a mini lot is 10,000, a micro lot is 1,000.
Put them together and a pip becomes real money. On EUR/USD, a standard lot makes each pip worth about $10; a micro lot makes it about $0.10. That's the whole point of the arithmetic: it tells you what a move is worth before you take the trade. Our free forex pip calculator does the math for any pair and lot size.
Leverage: the double-edged sword
Leverage lets a small deposit control a large position — 50:1 leverage means $2,000 can control $100,000. That cuts both ways with equal force. A move that would earn you a small amount unleveraged is multiplied into a large gain — and an adverse move is multiplied into a large loss just as fast.
Why when you trade matters: the sessions
Forex runs in four overlapping sessions as the trading day circles the globe:
| Session | Rough hours (ET) | Character |
|---|---|---|
| Sydney | 4:00 PM – 1:00 AM | Quiet open |
| Tokyo | 7:00 PM – 4:00 AM | Asia range, yen focus |
| London | 3:00 AM – 12:00 PM | High volume, trends begin |
| New York | 8:00 AM – 5:00 PM | Data-driven moves |
The London–New York overlap (roughly 8:00 AM to noon ET) is the busiest, most liquid window of the day — tightest spreads, biggest moves. Matching your strategy to a session is one of the quieter edges in forex, which is exactly why the desk's FX floor is built around London and New York session cards.
How to read a forex signal
A serious FX signal — from any source — names four things before the trade, never after:
- The pair and direction — what you're trading and which way.
- An entry trigger — a specific price to act on, not "buy now."
- Targets and a stop, measured in pips — where profit comes off and where the idea is proven wrong.
- Session context — because the same setup behaves differently in a dead Asia session than in the London open.
If a room posts entries only after they worked, or charts with no timestamps, close the tab. A record you can't audit isn't a record — it's marketing. Here's what an auditable one looks like, including the parts where we lose.
Keep going — the full handbook
This is the plain-English opening of "Forex, In Plain English — The Session Trader's Handbook," the desk's 15-chapter beginner book: pairs, pips, lots, leverage and margin, spreads, order types, the sessions, what moves currencies, technicals, risk sizing in pips, reading a card, the mistakes that blow up accounts, building a routine, and the honest truth about the odds. The community Academy carries the fundamentals free.
Disclosures. ClaudeQuantAlgo is a research and education community. Nothing on this page constitutes financial, investment, legal, or tax advice, or a recommendation to buy, sell, or trade any currency pair. Forex trading is highly leveraged and carries a substantial risk of loss; most retail forex accounts lose money. Examples are illustrative, not recommendations, and no outcome is promised or implied. ClaudeQuantAlgo is not a registered investment adviser or broker-dealer. You are solely responsible for your own trading decisions. Never risk money you cannot afford to lose.