EMA21/SMA21 + ATR Bands Suite

The EMA/SMA + ATR Bands Suite is a powerful technical overlay built around one of the most universally respected zones in trading: the 21-period moving average. By combining both the EMA21 and SMA21 into a unified framework, this tool defines the short-term mean with greater clarity and reliability, offering a more complete picture of trend structure, directional bias, and price equilibrium. These two moving averages serve as the central anchor — and from them, the script dynamically calculates adaptive ATR bands that expand and contract with market volatility. Whether you trade breakouts, pullbacks, or reversion setups, the 21 midline combined with ATR extensions offers a powerful lens for real-time market interpretation — adaptable to any timeframe or asset.

🔍 What's Inside?

✅ EMA21 + SMA21 Full Plots and Reduced-History Segments using arrays:
Enable full plots or segmented lines for the most recent candles only with automatic color coding. The reduced-history plots are perfect for reducing clutter on your chart.

✅ ATR Bands (2.5x & 5x):
Adaptive ATR-based volatility envelopes plotted around the midline (EMA21 + SMA21) to indicate:

🔸Potential reversion zones.
🔸Trend continuation breakouts.
🔸Dynamic support/resistance levels.
🔸 Expanding or contracting volatility states
🔸 Trend-aware color changes — yellow when both bands are rising, purple when falling, and gray when direction is mixed

✅ Dual MA Fills (EMA21/SMA21):
Visually track when short-term momentum shifts using a fill between EMA21 and SMA21

✅ EMA5 & EMA200 Labels:
Display anchored labels with rounded values + % difference from price, helping you track short-term + macro trends in real-time.

✅ Intelligent Bar Coloring
Bars are automatically colored based on both price direction and position relative to the EMA/SMA. This provides instant visual feedback on trend strength and structural alignment — no need to second-guess the market tone.

✅ Dynamic Close Line Tools:
Track recent price action with flexible close-following lines

✅ RSI Overlay on Candles:
Optional RSI + RSI SMA displayed above the current bar, with automatic color logic.

🎯 Use Cases

➖Trend Traders can identify when price is stacked bullishly across moving averages and breaking above ATR zones.
➖Mean Reversion Traders can fade extremes at 2.5x or 5x ATR zones.
➖Scalpers get immediate trend insight from colored bar overlays and close-following lines.
➖Swing Traders can combine multi-timeframe EMAs with volatility thresholds for higher confluence.

📌 Final Note:
As powerful as this script can be, no single indicator should be used in isolation. For best results, combine it with price action analysis, higher-timeframe context, and complementary tools like trendlines, moving averages, or support/resistance levels. Use it as part of a well-rounded trading approach to confirm setups — not to define them alone.