OPEN-SOURCE SCRIPT
Cardwell RSI by TQ

📌 Cardwell RSI – Enhanced Relative Strength Index
This indicator is based on Andrew Cardwell’s RSI methodology, extending the classic RSI with tools to better identify bullish/bearish ranges and trend dynamics.
Key Features:
How to Use:
Default Settings:
This indicator is based on Andrew Cardwell’s RSI methodology, extending the classic RSI with tools to better identify bullish/bearish ranges and trend dynamics.
In uptrends, RSI tends to hold between 40–80 (Cardwell bullish range).
In downtrends, RSI tends to stay between 20–60 (Cardwell bearish range).
Key Features:
- Standard RSI with configurable length & source
- Fast (9) & Slow (45) RSI Moving Averages (toggleable)
- Cardwell Core Levels (80 / 60 / 40 / 20) – enabled by default
- Base Bands (70 / 50 / 30) in dotted style
- Optional custom levels (up to 3)
- Alerts for MA crosses and level crosses
- Data Window metrics: RSI vs Fast/Slow MA differences
How to Use:
- Monitor RSI behavior inside Cardwell’s bullish (40–80) and bearish (20–60) ranges
- Watch RSI crossovers with Fast (9) and Slow (45) MAs to confirm momentum or trend shifts
[\*] Use levels and alerts as confluence with your trading strategy
Default Settings:
- RSI Length: 14
- MA Type: WMA
- Fast MA: 9 (hidden by default)
- Slow MA: 45 (hidden by default)
- Cardwell Levels (80/60/40/20): ON
- Base Bands (70/50/30): ON
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
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.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
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.