Trading Terms Glossary
Plain-English definitions for the risk and trading terms you'll see across our calculators and journal.
Pip
The smallest standard price move in a currency pair — usually the fourth decimal place.
Pip Value
The dollar (or account-currency) value of a single pip move, based on lot size and pair.
Lot Size
The number of currency units in a single forex trade — standard, mini, or micro.
Leverage
Borrowed buying power that lets you control a larger position than your account balance alone.
Margin
The portion of your account balance a broker sets aside as collateral for an open position.
Margin Call
A broker warning (or forced liquidation) that your account equity has fallen too close to used margin.
Drawdown
The decline from an account's peak balance to a subsequent low point, usually shown as a percentage.
Risk of Ruin
The statistical probability that a trading strategy loses so much capital it can no longer continue.
Risk/Reward Ratio
How much you stand to gain versus how much you're risking on a single trade.
Expected Value
The average profit or loss per trade a strategy produces over many repetitions.
Win Rate
The percentage of trades that close as winners out of all trades taken.
Stop Loss
A predefined price level that automatically closes a trade to cap the loss.
Take Profit
A predefined price level that automatically closes a trade to lock in a gain.
Position Size
The exact number of shares, contracts, or lots to trade based on account risk and stop distance.
Spread
The gap between the bid (sell) and ask (buy) price of an instrument.
Slippage
The difference between the price you expected to trade at and the price you actually got.
Compounding
Reinvesting trading gains so future position sizes grow with the account balance.
Fibonacci Retracement
Horizontal levels based on key Fibonacci ratios used to anticipate where a price pullback might pause.
Equity
Your account balance adjusted for the current floating profit or loss of open trades.
Free Margin
The portion of account equity not tied up as margin, available to open new trades or absorb losses.

