Which opening range is best: 5, 15 or 30 minutes?

The 5-minute range was the one studied in the research. 15 minutes is a common compromise for beginners because it filters some noise. Test one on your market and keep it.

Does ORB work on futures like MNQ and ES?

It is widely traded on them. The research on QQQ is the closest evidence for Nasdaq futures, and a replication on index futures found the edge too small to survive retail costs, so cost control matters.

Why does ORB lose most of its trades?

Because many breaks fail and get stopped. The method relies on the few days that trend hard all session. A low win rate is normal; a small edge per trade is the whole game.

Can I use ORB on Nifty or Bank Nifty?

The same logic is popular in India, with the range taken after the 9:15 open. Check lot sizes and costs, which change the arithmetic, and test before trading it.

Opening range breakout (ORB) strategy: rules and example

The idea

The first minutes after the open are the busiest of the day: overnight news, orders queued before the bell and the first reactions all hit at once. The high and low of that stretch, the opening range, are levels everyone watching the market can see.

The strategy waits for price to leave that range. A close above the range high is a buy, a close below the range low a short, and the range itself gives a natural place for the stop. Traders use the first 5, 15 or 30 minutes; shorter ranges give earlier and more frequent signals, longer ones fewer and slower.

Watch it play out

Illustration, not a real chart.

Step by step

The rules

Setup

Mark the high and low of the first 15 minutes after the open (or 5 or 30: pick one and keep it).

Entry

Buy when a 5-minute candle closes above the range high.
Sell short when one closes below the range low.
Take only the first breakout of the day.

Stop-loss

At the other side of the range, or at the middle of the range when the range is wide.

Target

2R, or hold to the close of the session, which is how the published study exited.

Filters that help

Skip days when the range is unusually wide compared with recent days: the move may already have happened.
Favour markets with news or unusual volume that day.

Why it can work

When the early buyers or sellers win the opening tug of war, the day often keeps going their way, because the news behind the move is still being absorbed and stop orders sit just beyond the range.

Research found the effect strongest in stocks that are unusually active that day (Stocks in Play, often because of news), where the opening move reflects real new information.

Worked example

On MNQ the first 15 minutes make a range 50 points tall. A 5-minute candle closes 6 points above the range high: buy. With the stop at the range low the risk is 56 points, $112 per contract, which is over a $100 limit.

Using the middle of the range for the stop instead cuts the risk to 31 points, $62 per contract: one MNQ fits. A 2R target sits 62 points above the entry.

Size this trade in the MNQ calculator

When it works, when it fails

Works best

On days with real news and heavy early volume, in liquid markets with low costs. The stronger and cleaner the first move, the better the odds the day continues.

Struggles

On quiet days, when price pokes out of the range and falls straight back in, and when costs are large next to the range. In the studies most trades lose: the edge comes from occasional large winners.

Common mistakes

Taking every break, including the second and third of the day after the first failed.
Using a 1-minute range on a slow market, which turns noise into signals.
Ignoring costs: on small ranges, spread and commission can be a large share of the risk.

Variations

The 5-minute ORB from the research: Trade in the direction of the first 5-minute candle at the start of the second, with the stop at the other end of that first candle, and exit at the close if not stopped.
London breakout: The same idea in forex: the range of the quiet Asian session, traded when London opens.

What the evidence says

Researched

Published studies exist. Results depend on the details and on costs.

A study of the 5-minute opening range breakout on QQQ from 2016 to 2023 reported strong returns compared with buy and hold, and a second study across more than 7,000 US stocks found the best results when trading only stocks with unusual activity that day.

An independent replication on five index markets from 2015 to 2026 reproduced the result before costs (about +0.13R per trade, roughly 23% winners) but found nothing left after realistic retail spreads and slippage. The signal is real; whether it pays depends on what you trade and what it costs you.

Questions

Which opening range is best: 5, 15 or 30 minutes?: The 5-minute range was the one studied in the research. 15 minutes is a common compromise for beginners because it filters some noise. Test one on your market and keep it.
Does ORB work on futures like MNQ and ES?: It is widely traded on them. The research on QQQ is the closest evidence for Nasdaq futures, and a replication on index futures found the edge too small to survive retail costs, so cost control matters.
Why does ORB lose most of its trades?: Because many breaks fail and get stopped. The method relies on the few days that trend hard all session. A low win rate is normal; a small edge per trade is the whole game.
Can I use ORB on Nifty or Bank Nifty?: The same logic is popular in India, with the range taken after the 9:15 open. Check lot sizes and costs, which change the arithmetic, and test before trading it.