Lot Size
The standardized quantity of a financial instrument in a single transaction.
Definition
In forex trading, a lot is the standardized unit of measurement for a transaction amount. The standard lot size is 100,000 units of the base currency. Mini lots are 10,000 units, micro lots are 1,000 units, and nano lots are 100 units. Lot size directly affects risk and profit potential — for EUR/USD, a standard lot means each pip movement equals approximately $10, while a micro lot equals $0.10 per pip. Choosing the appropriate lot size is crucial for risk management. A common rule is to risk no more than 1-2% of your account balance per trade. Position sizing calculators help traders determine the optimal lot size based on their account size, risk tolerance, and stop-loss distance.
Related Tools
Related Terms
Pip
The smallest standard price movement in forex trading, typically 0.0001 for most currency pairs.
TradingLeverage
Using borrowed capital to increase the potential return of an investment.
TradingMargin
The collateral required to open and maintain a leveraged trading position.
TradingRisk Management
The process of identifying, assessing, and controlling threats to an investment portfolio.