The Traders Dynamic Index(TDI) is a trend, momentum and volatility indicator. The TDI is comprised of a standard Relative Strength Index(RSI) line, but also includes an RSI signal line, Bollinger Bands of the RSI and adjusted horizontal overbought/oversold levels. This version of the TDI offers the ability to color the RSI line based on RSI momentum. This version colors the horizontal background levels of the RSI depending on whether price is in a bull trend or bear trend. This version also allows you to color the price candles based on RSI momentum.
When reading the TDI the first line you want to look at is the RSI line, which is the line that changes color. The RSI line in this indicator is set to a lookback period of 13 rather than 14 as in the standard RSI indicator.
-The RSI line color is derived from the line's horizontal position(0-100). When the RSI line is between 45-55 the RSI line will be gray which indicates no momentum, or that price is neutral.
-When the RSI line is above 55 the line will be colored shades of green which indicate bullish price momentum:
--55-60 = dark green = weak bullish momentum --60-70 = green = bullish momentum --70-80 = light green = strong bullish momentum --above 80 = bright green = extreme/overbought bullish momentum
---The brighter the shade of green the stronger the bullish momentum.
-When the RSI line is below 45 the line will be colored shades of purple which indicate bearish price momentum:
---The brighter the shade of purple the stronger the bearish momentum.
The next line in the TDI is the RSI Signal Line and it is an 8-period average of the RSI. The RSI Signal Line shows short-term trend in momentum. When the RSI line is above the RSI signal line the short-term momentum trend is considered bullish. When the RSI line is below the RSI signal line the short-term momentum trend is considered bullish.
The next set of lines you want to look at after the RSI line are the Bollinger Bands of the RSI, which are preset to the color blue. The RSI Bollinger Bands are read just as standard price Bollinger Bands in that the RSI trending above the middle of the bands is considered bullish and an RSI line trending below the middle of the bands is considered bearish. Breaches above the upper Bollinger Band and breaches below the lower Bollinger Band are considered to be signs of extreme volatility. A breach of the upper band indicates that momentum is extremely volatile to upside and price could potentially reverse, or make a short-term top. When this occurs the RSI line is colored yellow. When the RSI line breaches the lower Bollinger Band it indicates that momentum is extremely volatile to the downside and price could potentially reverse, or make a short-term bottom. When this occurs the RSI line is colored red.
Along with watching where the RSI line is relative to the Bollinger Bands, you also want to watch where the middle Bollinger Band is on the horizontal range(0-100). When the middle Bollinger Band is above 50 it indicates intermediate-term bullish momentum. When the middle Bollinger Band gets near or above 70 it usually marks a short-term top or end of a bull rally. When the middle Bollinger Band is below 50 it indicates intermediate-term bearish momentum. When the middle Bollinger Band gets near or below 30 it usually marks a short-term bottom or end of a bear rally.
When the middle Bollinger Band crosses above and below the horizontal 50 level it changes the color of the TDI background. When the middle band is above 50 the background is colored green and when the middle band is below 50 the background is colored purple. The green background will fill the 40-80 levels and is where you want to see most of the RSI line action during a bull trend in price. When the RSI is mostly trending between 40-80 the overall trend behind price is considered bullish. The purple background will fill the 20-60 levels and is where most of the RSI line action will be during a bear trend in price. When the RSI line is mostly trending between 20-60 the overall trend behind price is considered bearish.
The TDI is a great tool for any trader, especially if you already use the RSI indicator since the TDI is basically and improved/advanced RSI.
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