Traders Dynamic Index (TDI) The Traders Dynamic Index (TDI) is a powerful all-in-one trading indicator that helps traders identify market momentum , trend strength , and volatility . Originally popularized through the “Synergy” trading system, the TDI has stood the test of time and remains a favored tool among forex traders. For those looking to level up their strategies, the TDI offers a comprehensive view of market conditions in a single indicator. At MarketInvestopedia, we understand how essential effective tools are—and the TDI is one we strongly recommend. According to MetaTrader 4 usage data, over 65% of retail traders rely on indicators like TDI to improve their entry and exit decisions . What Makes the TDI Unique? The TDI combines multiple technical tools into one clean visual display: Relative Strength Index (RSI) Moving Averages Volatility Bands (Bollinger Bands) It simplifies technical analysis, prevents signal overload, and works well for various tradin...