The opening range breakout is one of the oldest intraday methods, and it survives because it is built on a real feature of markets: the first stretch after a major open is when overnight orders, news and positioning get resolved, and the high and low of that stretch become levels the rest of the day respects. When price leaves the opening range with conviction, it often travels a meaningful multiple of the range's height. When it fails, it fails quickly, and the stop is close. That combination of defined risk and open-ended reward is exactly what a momentum trader wants.
Defining the range
Pick one open and one window, and keep them fixed. For US indices, the first 15 or 30 minutes after 9:30 New York are the classic choices. For European indices and euro and sterling pairs, the first 30 or 60 minutes after the London open. For gold, the US open matters more than London for the day's range on many days. A shorter window gives earlier entries and more false breaks; a longer one gives fewer, cleaner signals and a later start. There is no universally correct window, but changing it from day to day turns a method into guesswork.
Mark the high and low of the window when it closes. Also note the range's height relative to recent days. An opening range that is already unusually wide has spent much of the day's typical movement; a narrow opening range on a day with a catalyst is often the coiled spring that produces the day's biggest move.
Entering the break
There are two sound ways to enter, and both are better than buying the first tick through the high. The first is the close entry: wait for a bar on your trading timeframe to close beyond the range, with the ignition qualities described in the previous lesson, and enter on that close. The second is the retest entry: let price break, then wait for it to pull back toward the broken range edge and show that the level now holds, a higher low above the old high for an upside break, and enter there. The close entry catches more moves; the retest entry gives a better price and a tighter stop but misses the breaks that never look back.
- Stop: just inside the range, beyond the most recent swing, not at the far side of the range unless the range is narrow. A stop at the far side of a wide range often makes the trade too expensive to size properly.
- First target: one range height beyond the break. Many traders take partial profit here and move the stop to breakeven on the rest.
- Runner: the remaining position is managed with a trailing method from the trend chapter, aiming for two to three range heights on strong days.
Filters that remove the worst trades
The opening range breakout's weakness is chop: days where price breaks one side, fails, breaks the other side, and fails again. Three filters remove a large share of those days. First, the economic calendar: a major release an hour after the open will often reverse whatever the open did, so either wait for it or skip the setup. Second, direction of the prior trend: breaks in the direction of the previous day's close and the higher-timeframe structure fail less often than breaks against it. Third, a one-attempt rule: if the first break fails and you are stopped, you do not take the opposite break automatically. Many of the worst days in opening range trading come from flipping direction three times in an hour.
A worked example, illustrative
Say the Nasdaq 100's first 30 minutes produce a range of 60 points, from 20,140 to 20,200, on a day following a strong close and with no major data until the afternoon. At 10:12 New York a 5-minute bar closes at 20,214, with a range of 28 points against a recent average of 15, closing near its high. That is ignition by the checklist. Entry at 20,214, stop at 20,185 inside the range below the last swing, risk 29 points. The first target, one range height beyond the break, is 20,260. If price reaches it, half comes off and the stop moves to entry. The runner trails beneath each new 5-minute higher low. On a trend day it may still be running at lunch; on an ordinary day it is stopped somewhere above entry. On a failed day the full stop is hit for a one-unit loss. Those three outcomes, in roughly that mix, are what the method looks like over a month.