Learning Library

Your source for market knowledge

Explore clear explanations of economic indicators, central bank decisions and trading concepts — all in plain English and built for real-world trading.

1000 articles across 9 categories · Browse A–Z

A quiet library reading room with books and a desk lamp

Start here

The releases that move currencies most often.

Trading concepts

Core ideas and setups that appear across markets, explained in plain English.

Asian session

The overnight session driven by Tokyo, Sydney, Hong Kong and Singapore, typically quieter and range-bound.

Tokyo sessionAsia sessionovernight session

ATR (Average True Range)

ATR, or Average True Range, measures the average distance a market travels over a chosen number of periods, including gaps. It is a pure volatility reading with no directional bias. Traders use ATR to set stop distances that respect normal noise, to size positions consistently, and to judge whether current conditions are unusually quiet or unusually fast.

true range

Backtesting

Testing a set of rules against historical price data to see how it would have performed.

backtesthistorical testing

Bearish candle

A candle that closes below its open — sellers finished the period in control.

bearish closebearish candlesred candle

Bollinger Bands

Bollinger Bands are a volatility indicator made up of a moving average with upper and lower bands that expand and contract as market volatility changes. They help traders judge whether price is becoming stretched, identify volatility changes, and support both trend-following and mean reversion analysis.

Bollinger BandBollinger Bands indicatorBB indicator

Breakout

A breakout occurs when price moves decisively beyond a defined level such as a range high, trendline or consolidation boundary. It signals that the balance between buyers and sellers has shifted and can start a sustained move. Breakouts also fail often, so traders look for confirmation through follow-through, expanding range and a successful retest of the broken level.

break outrange break

Bullish candle

A candle that closes above its open — buyers finished the period in control.

bullish closebullish candlesgreen candle

Candle

A single bar on a candlestick chart showing the open, high, low and close for one period.

candlestickcandlesticksprice candle

Browse by category

Every indicator lives under a permanent category namespace.

Recently updated

Freshly researched and re-verified explanations.