Plain-English

The trading glossary.

Every term you'll meet, defined simply.

PipThe smallest standard price move in FX (usually 0.0001).
SpreadThe gap between the bid and the ask price.
LeverageBorrowed exposure — magnifies both gains and losses.
MarginCollateral required to hold a leveraged position.
DrawdownPeak-to-trough drop in account equity.
VolatilityHow much price moves over a period (e.g. realized stdev of returns).
LiquidityHow easily you can enter/exit without moving price.
SlippageDifference between expected and filled price.
Position sizeHow many units you hold — set by your risk, not your hope.
R-multipleProfit/loss expressed as a multiple of your initial risk (R).
Mean reversionThe idea that price tends to revert toward an average.
MomentumThe tendency of trends to persist in the short term.
Market regimeThe prevailing character of the market (trending, ranging, volatile).
CorrelationHow two instruments move relative to each other (−1 to +1).

⚠ Educational only. Market data may be delayed. Nothing here is financial advice, a recommendation, or a signal to buy or sell. Trading involves risk of loss.