Opening Range Breakout (ORB)

What is an Opening Range Breakout?

The opening range breakout (ORB) is one of the most popular day trading strategies. The concept is simple: mark the high and low of the first 15 or 30 minutes of trading (the "opening range"), then enter a trade when price breaks above the high or below the low.

How to trade an ORB

1. Wait for the first 15 or 30 minutes to complete. Do not trade during this window.
2. Mark the high and low of that range on your chart.
3. If price breaks above the high, go long. If price breaks below the low, go short.
4. Set your stop loss on the opposite side of the range (or at the midpoint for a tighter stop).
5. Target 1:1 or 2:1 reward-to-risk, or trail your stop as the move develops.

Why the opening range matters

The opening drive is the most volatile period of the day. Overnight orders, gap reactions, and early momentum create a burst of activity that establishes the day's initial range. Once that range is set, the breakout direction often predicts the trend for the rest of the session.

Studies of intraday price action show that the first 30-minute range contains the daily high or low roughly 40% of the time. That means the ORB breakout direction has a meaningful statistical edge, especially when combined with volume confirmation.

Filters that improve ORB results

• RVOL above 1.5: a breakout on low volume is unreliable. Make sure participation is above average.
• Gap direction alignment: if the stock gapped up and breaks above the opening range high, you are trading with the gap. Fading the gap (shorting a gap-up stock) is a different strategy with different rules.
• Sector alignment: if the broad market (SPY) is trending in the same direction as your ORB, the odds improve.
• Clean range: a tight, well-defined opening range produces cleaner breakouts than a wide, sloppy one. If the range is already 80% of the stock's ADR, there may not be enough room left for a move.

ORB failures

Not every breakout works. The stock can break the high, trigger your entry, then reverse back into the range and stop you out. This is called a "failed breakout" or "false break" and happens more often during the midday lull when volume drops off. The key is to keep your stop tight and accept the small loss when the setup fails.

RiskPicks and ORB trading

RiskPicks shows the full intraday chart with extended hours data, VWAP, gap percentage, and RVOL, all of which help evaluate ORB setups. Use the position calculator to size your trade based on the opening range stop distance, and let the AI Sentiment tell you whether the broader context supports the breakout.