OPEN-SOURCE SCRIPT
Michigandolf's 30min Opening Range (w/Extensions)
See previous version for explanation of the 30min Opening Range: 
This new version is for users that prefer to see the Opening Range Extensions.
The extensions are based on the distance from the Opening Range High to the Mid Point (or Low to the Mid Point).
This new version is for users that prefer to see the Opening Range Extensions.
The extensions are based on the distance from the Opening Range High to the Mid Point (or Low to the Mid Point).
Open-source script
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in publication is governed by House rules. You can favorite it to use it on a chart.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.