Optimal Trend Change & Volume Divergence Entries

This TradingView Pine Script combines two technical analysis elements: trend change detection via EMA and volume divergence. The core of the script is the Exponential Moving Average (EMA) with a length of 21, which is plotted on the price chart. When the closing price crosses above the EMA21, a possible bullish trend change is identified. Conversely, when the closing price crosses below the EMA21, a bearish trend change is signaled. To avoid false entries, the script introduces a candlestick confirmation, requiring a green candle for bullish signals and a red one for bearish signals.

Volume divergence is integrated to provide additional context to the trend change. Bullish volume divergence occurs when the price registers a lower close than the previous bar, but the volume increases, suggesting waning selling pressure and a potential reversal. Bearish volume divergence is recognized when the price closes higher than the previous bar, but the volume declines, indicating possible exhaustion of buying strength. Only when both a trend change and the appropriate volume divergence signal occur on the same candle is a main entry generated.

The script visualizes these optimal buy entries with a large aqua upward arrow and optimal sell entries with a large fuchsia downward arrow. These arrows make it easy for traders to spot high-probability setups on the chart. When only a trend change is detected without volume divergence, the script plots smaller green or red arrows as additional context but marks them as less optimal entries.

The background color of the chart subtly changes to green for trending up and red for trending down, which helps the user quickly assess the prevailing market bias. Alerts can be set for the optimal entries, so traders do not need to monitor the chart constantly. The volume divergence logic in this version is kept classic and straightforward for reliability and speed. This approach looks for immediate (bar-to-bar) divergences instead of more complex, multi-bar patterns.

By requiring both a trend change and volume divergence, the script aims to reduce false signals and highlight stronger opportunities. The EMA21 offers a dynamic support/resistance level, enhancing decision-making for both scalpers and short-term traders. Volume divergence confirms whether a trend change is likely genuine or just a pullback.

Even in ranging conditions, the extra confirmation of volume trends helps filter out mediocre trades. With easily customizable inputs such as EMA length, traders can adapt the script to different instruments and timeframes. Placing visual markers and background changes directly on the price chart aids fast, intuitive trading decisions.

The script is lightweight and runs smoothly on most TradingView accounts. The customizable alerts give traders flexibility in their strategy execution. Advanced users can extend the script with more complex divergence conditions if needed. Overall, this script helps traders to identify and act on high-probability trend reversal setups, especially valuable for gold (XAUUSD) scalping.