An opening range breakout (ORB) uses the high and low established during a defined period after a market opens. A trade is considered only when price moves beyond one of those boundaries under the rules chosen by the trader. The range length and confirmation method must be specified before testing.
Define the opening range
Choose the market session and a fixed range window—for example, the first 5, 15 or 30 minutes—and record its high and low. Results can change materially with the chosen window, so do not switch it opportunistically from one chart to another.
Set the breakout trigger
A rule may require a candle close outside the range, a trade through the boundary with volume confirmation, or a retest that holds the broken level. A simple touch can produce frequent false signals in choppy conditions.
Place the invalidation and target
Possible exits include the opposite side of the range, a nearby structure level, a volatility-based distance or a fixed reward-to-risk rule. Calculate size from the stop distance; a wide opening range naturally reduces position size for the same risk budget.
Filter weak conditions
News releases, overnight gaps and very low opening volume can change the behaviour of the setup. Test trend and range days separately, include transaction costs and avoid assuming that every opening break will continue.
Build a repeatable plan
Before risking capital, write down the conditions that must be present, the price or event that invalidates the idea, the maximum acceptable loss and the circumstances in which you will not trade. Test the rules on historical data and a demo account, include realistic costs, and keep records across different market conditions.
Questions to ask before using this approach
- Can the setup be defined and tested without hindsight?
- Are spread, commission, financing, slippage and liquidity included?
- Does the instrument and broker support the intended order types and holding period?
- What evidence would make the original idea invalid?
Educational information only. This guide is not personal investment advice and does not promise a profitable result. Trading and leveraged products can result in losses, including losses that may exceed expectations depending on the product and local rules.
