Safe Supertrend Strategy (No Repaint)

Overview
The Safe Supertrend is a repaint-free version of the popular Supertrend trend-following indicator.
Most Supertrend indicators appear perfect on historical charts because they flip intrabar and then repaint after the candle closes.
This version fixes that by using close-of-bar confirmation only, making every trend flip 100% stable, safe, and non-repainting.

Why This Supertrend Doesn’t Repaint
Most Supertrend indicators calculate their trend direction using the current bar’s data.
But during a live candle:

• ATR expands and contracts
  
• The upper/lower bands move
  
• Price moves above/below the band temporarily
  
• A false flip appears → then disappears when the candle closes
  

That is classic repainting.

This indicator avoids all of that by using:
close[1] > upper[1]
close[1] < lower[1]
This means:

• Trend direction flips only based on the previous candle,
  
• No intrabar calculations,
  
• No flickering signals,
  
• No “perfect but fake” historical performance.
  

Every signal you see on the chart is exactly what was available in real-time.

How It Works

• Calculates ATR (Average True Range) and SMA centerline
  
• Builds upper and lower volatility bands
  
• Confirms trend flips only after the previous bar closes
  
• Plots clear bull and bear reversal signals
  
• Works on all markets (crypto, stocks, forex, indices)
  

No repainting, no recalc, no misleading flips.

Bullish Signal (Trend Up)
A bullish trend begins only when:

• The previous candle closes above the upper ATR band,
  
• And this flip is fully confirmed.
  

A green triangle marks the start of a new uptrend.

Bearish Signal (Trend Down)
A bearish trend begins only when:

• The previous candle closes below the lower ATR band,
  
• And the downtrend is confirmed.
  

A red triangle signals the start of a new downtrend.

Inputs

• ATR Length - default 10
  
• ATR Multiplier - default 3.0
  
• Works on all timeframes and market
  

Simple, but powerful.
Why Use This Version Instead of a Regular Supertrend?
Most Supertrends:

• Look great historically
  
• But repaint continuously on live charts
  
• Give false trend flips intrabar
  
• Cannot be reliably used in strategies
  

This version:

• Uses strict previous-bar logic
  
• Never repaints trend direction
  
• Works perfectly in live trading
  
• Backtests accurately
  
• Is ideal for algorithmic strategies
  

Ideal For:

• Trend-following strategies
  
• Breakout trading
  
• Algo trading systems
  
• Reversal detection
  
• Filtering market noise
  
• Swing trading & scalping
  

Final Note
This is a safer, more reliable Supertrend designed for real-world use — not perfect-looking repaint illusions.
If you use Supertrend in your trading system, this no-repaint version ensures your signals are trustworthy and consistent.