Opening range breakout
Price moves beyond the high or low of the first 30 minutes of the day.
Gaps and breakoutsBest on 1D, 5DAlso called ORB
What it shows
The opening range is the high and low of the first 30 minutes after the market opens. A breakout is a close above the high or below the low after that.
It is an intraday description and uses minute bars.
How we find it
The same code that draws it on your chart follows these steps, with the same result every time.
- Find the high and low of the first 30 minutes.
- Draw both lines across the day.
- Mark a break when a bar closes above the high or below the low.
- Show the time.
Starting values: Window 30 minutes. These are proposed and will be tuned on real price data before launch.
How to read it
- The shaded box is the opening range.
- Lines extend across the day.
- The gold dot is the first close outside.
Status labels you may see
| Label | What it means |
|---|---|
| Above range | Close above the opening high. |
| Below range | Close below the opening low. |
| Inside | Close inside the range. |
What cancels it
Resets each day.
What traders check next
- Time of the break.
- Volume.
- Size of the opening range.
Limits
- Only for intraday data.
- Window length is a choice.
- Many days stay inside.
Try it in forecastviz
- Open any ticker and choose Gaps and breakouts → Opening range breakout in the left menu.
- Switch between 1D, 5D to see how the picture changes.
- Compare with Range breakout and VWAP on the same chart.
Questions
Why 30 minutes?
It is a common choice. Others use 5, 15 or 60.
Does it work?
We make no claim.
Related trends
Further reading
- Edwards and Magee, Technical Analysis of Stock Trends
- Bulkowski, Encyclopedia of Chart Patterns
- Murphy, Technical Analysis of the Financial Markets
- Crabel, Day Trading with Short Term Price Patterns
Educational only. Not financial advice, and not a price forecast. Charts are drawn by code from past price data, which may be delayed.