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Delta-X Academy

Forex and the Currency Market

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free8 min read

Forex is the trading of one currency against another as a pair, where the price is how much of the quote currency it takes to buy one unit of the base currency. It is a large, decentralised, over-the-counter market traded through brokers rather than a central exchange, around the clock on weekdays, and is usually quoted in small increments called pips.

Target audience: Traders drawn to the currency market who need its pair, pip, and lot conventions before trading.

Learning objectives

  • ✓Read a currency pair as base versus quote.
  • ✓Define a pip and a lot.
  • ✓Describe the decentralised, broker-faced structure.
  • ✓Recognise the high leverage forex often allows.

Definition

Forex is the trading of one currency against another as a pair, where the price is how much of the quote currency it takes to buy one unit of the base currency. It is a large, decentralised, over-the-counter market traded through brokers rather than a central exchange, around the clock on weekdays, and is usually quoted in small increments called pips.

Why it matters

Forex is one of the most accessible markets, open continuously on weekdays and available at a wide range of account sizes, so its conventions, pairs, pips, lot sizes, and high available leverage, are worth understanding before trading it. Its decentralised, broker-faced structure and high leverage also make it easy to take far more exposure than intended, which is why the mechanics matter.

Pairs, base, and quote

A currency is always traded against another, as a pair. The first currency is the base and the second is the quote, and the price tells you how much of the quote currency one unit of the base costs. Buying the pair means going long the base and short the quote; selling does the reverse. Pairs are loosely grouped into majors, which involve the most-traded currencies and tend to be the most liquid with the tightest spreads, and less-traded minors and crosses, which are typically wider and thinner.

Pips and lots

Forex prices move in small increments, and a pip is the standard small unit of movement, usually the fourth decimal place for most pairs and the second decimal for pairs involving the yen. Position size is measured in lots: a standard lot is a large fixed amount of the base currency, with mini, micro, and sometimes nano lots at successive fractions of that, which let smaller accounts trade proportionate size. The value of a pip in your account currency depends on the pair and the lot size, so, as with futures, you must know what a pip is worth before sizing a trade.

Decentralised, broker-faced, and highly leveraged

Unlike exchange-traded futures, forex is decentralised and over-the-counter: there is no single central exchange, and you trade through a broker who provides prices and is your counterparty or routes your order. This structure means execution, spreads, and conditions can differ between brokers, and it places weight on choosing a reputable, well-regulated one. Forex also commonly offers high leverage, which varies widely by jurisdiction and is capped for retail traders in many regions; high leverage magnifies small currency moves into large account swings, which is the central risk to respect.

Worked examples

Example 1: Leverage turning a small move large

A trader opens a large position on a major pair using high leverage, reasoning that currencies move only a little each day. A routine move against them of a fraction of a percent, ordinary for the pair, becomes a large loss relative to their account, because the leverage multiplied that small percentage move against the full position size. A trader who sized the position so that the same small currency move was a small account move, using a smaller lot, would have been comfortable. The pair behaved normally; the leverage decided the damage.

Common mistakes

Trading a pair without knowing what a pip is worth in your account currency.

Using high leverage because currency moves look small day to day.

Ignoring that spreads and execution differ between brokers.

Treating thin minors and crosses as if they were as liquid as majors.

Choosing a poorly-regulated broker because the structure is broker-faced.

Myth vs reality

Myth

That small daily percentage moves mean forex is low-risk under leverage.

Reality

No paired reality note provided.

Myth

That all currency pairs are equally liquid and tightly spread.

Reality

No paired reality note provided.

Myth

That forex has a central exchange like futures.

Reality

No paired reality note provided.

Risk considerations

  • High leverage magnifies small currency moves into large account swings.
  • Broker-faced execution means conditions and counterparty quality vary.

Practice exercises

1. Decode a pair

Take one currency pair and work out its base, quote, pip, and pip value at a given lot size.

  1. Identify the base and quote currency and what the price means.
  2. Locate the pip for this pair (fourth decimal, or second for yen pairs).
  3. Pick a lot size and find what one pip is worth in your account currency.
  4. Note the pair's typical spread and whether it is a major, minor, or cross.

Quiz

Q1. What do the base and quote currencies in a pair mean?

Q2. What are pips and lots?

Q3. What is the central risk of forex's structure and leverage?

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This lesson is educational content only and is not financial advice or a recommendation to trade any instrument. Contract specifications, leverage limits, costs, and availability vary by broker, exchange, and jurisdiction, and some instruments are restricted or banned for retail traders in some regions; any figures here are illustrative, so verify the exact specs with your own provider. Leverage amplifies losses as much as gains and can result in losing more than your initial deposit. Markets carry substantial risk. Trade only with risk you can afford to lose.