NinjaTrader TDI (Traders Dynamic Index) Indicator
NinjaTrader TDI (Traders Dynamic Index) Indicator combines RSI, Moving Average, and Bollinger Bands to provide comprehensive market insights. It helps identify trend direction, market strength, and volatility. With customizable overbought/oversold zones, it registers analytical conditions based on crossovers, trend strength, and breakout events.
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What the TDI (Traders Dynamic Index) Indicator Does
The NinjaTrader TDI Indicator is a tool designed to support structured analysis of trend direction, momentum, and volatility. It integrates three well-known indicators — the RSI (Relative Strength Index), Moving Average, and Bollinger Bands — into a unified system. This combination enables the indicator to simultaneously display trend direction, market strength, and volatility.
The TDI Indicator combines key elements of technical analysis to offer a detailed perspective on market behavior:
- RSI: Measures the strength of the current trend.
- Moving Average: Highlights the prevailing trend direction.
- Bollinger Bands: Define the price fluctuation range and indicate market volatility.
Each component addresses a different dimension of price behavior — RSI captures momentum, MA reflects trend direction, and Bollinger Bands define volatility context. Together they reduce the likelihood of evaluating a condition in isolation from the broader market structure.
Indicator Lines
The main lines of the indicator are the red line and the green line (price line / fast line). Both lines represent the smoothed values of the RSI indicator.
Bollinger Bands are depicted by three lines: the orange line (a Moving Average), which serves as the middle line between the upper and lower borders of the channel, and two blue lines (upper and lower channel borders). These blue lines are also Moving Averages but are shifted by several standard (root mean square) deviations.
Gray (dash-dotted) lines indicate the boundaries of the overbought and oversold zones.
How to Interpret and Use the TDI Indicator
The indicator serves multiple purposes.
Trend direction
It can be used to determine the current trend direction. A green line positioned above the orange line reflects a shift toward upward momentum, while the green line falling below the orange line indicates a transition to a downtrend.
Early momentum shifts
The indicator can reflect early shifts in momentum. For example, when the red line crosses the green line from below, it reflects an early shift in momentum toward an upward direction. Conversely, when the red line crosses from above, it reflects an early shift in momentum toward a downward direction.
Market strength and volatility
The indicator measures the current strength of the market. A steeper slope of the green line reflects stronger price movement, while a horizontal green line suggests a flat market. Expanding channel lines signal increasing volatility, while narrowing lines suggest decreasing volatility and a reduction in market activity. When the red line moves beyond the channel boundaries, it may indicate an increase in reversal pressure relative to recent price behavior.
PriceAndSignalLinesCross Mode
In this mode, contextual conditions are registered when the red line crosses the green line. A crossover from below to above registers an upward condition, while a crossover from above to below registers a downward condition. This type of signal includes additional settings for signal conditions:
- The crossover must occur within the overbought or oversold zones, and/or
- A breakout of the Bollinger Bands is required
MarketBaseLineCross Mode
This mode relies on the intersections of the red line with the middle of the channel (orange). When the red line crosses the orange line from below to above, it registers an upward condition. Conversely, a crossover from above to below registers a downward condition. Similar to the PriceAndSignalLinesCross mode, the settings provide for the use of additional conditions: the crossing must occur within the overbought or oversold zones, and the red line must first go beyond the boundaries of the Bollinger Bands.
Configuring Overbought and Oversold Levels
The parameters for the overbought and oversold zones can be adjusted in the indicator settings. It is important to consider the following when configuring these levels:
- Higher Overbought Values: register fewer conditions but with a narrower set of qualifying criteria.
- Lower Overbought Values: register conditions more frequently, with a broader set of qualifying criteria.
The same principle applies in reverse for the oversold zone. Adjusting these thresholds allows traders to tailor the indicator’s sensitivity to their specific trading strategy and market conditions.
Indicator Settings & Parameters
Full parameter reference, grouped by configuration area.
| Parameter | Description |
|---|---|
| Calculation | |
| Applied Price | Selects the price type used for calculations (OPEN, HIGH, LOW, CLOSE, HL2, HLC3, OHLC4). |
| MA Type | Selecting the type of moving average calculations. |
| Std Dev Multiplier | Standard deviation multiplier of Bollinger Bands. |
| RSI Price Line Period | Period for calculating the price line / fast RSI line. |
| RSI Signal Line Period | Period for calculating the RSI signal line. |
| Signal Mode | |
| Strategy Type | Selection of the indicator signal mode.
|
| Use BB Breakout | Enable / disable an additional condition for signal calculation: mandatory presence of a breakout. |
| Impact of Overbought / Oversold Levels | Enable / disable an additional condition for signal calculation: influence of overbought/oversold levels. |
| Use Min. Delta Price Line and Signal Line | Enable / disable the use of the minimum difference between the Price Line and Signal Line values when the lines cross. This parameter is designed to filter out minor crossings of the lines. |
| Levels | |
| Overbought Level | Overbought level values. |
| Oversold Level | Oversold level values. |
| Alerts | |
| Alerts | Setting up various types of alerts. |
System Requirements & Installation
What you need to run the indicator, how to download and install it in NinjaTrader 8, and how the license works.
System Requirements
- Platform
- NinjaTrader 8 (Desktop)
- Operating system
- Windows 10 or Windows 11
- Instruments
- Futures, forex, stocks and ETFs supported by NinjaTrader
- Data
- NinjaTrader’s native data connections
Not available on NinjaTrader Web or Mobile. NinjaScript indicators run in NinjaTrader Desktop only.
License Terms
- Lifetime License
- This indicator only, 1 PC, one-time payment, free updates included.
- All-Access Subscription
- All indicators and trade copiers, billed monthly, cancel anytime, updates included while the subscription is active.
- Free trial
- 5 days on the subscription plan. If not cancelled, the subscription starts automatically.
- License binding
- Linked to your email and to the computer on which it was first activated.
- Moving to another computer
- Available on request through support.
Installation
- Get access
Start the free trial, subscribe, or buy a lifetime license on this page.
- Download
The indicator is not sent by email. Open (top right of this page) and enter the email you used for your trial, subscription or purchase. The installation file (.zip) downloads to your computer.
- Import into NinjaTrader 8
In the Control Center, go to
Tools → Import → NinjaScript Add-Onand select the downloaded .zip file. Do not unzip it. - Add to a chart
Open a chart, click Indicators, select the indicator from the list and apply it.
- Activate the license
In the indicator settings, enter the same email. On first activation, the license is linked to that email and to your computer.
Updating: When a new version is released, download it again through and import it the same way over the existing version.
Installation questions? Contact support, Monday to Friday.
Related Products
"Best Seller" and "Trending" reflect Nordman Algorithms sales and usage data, January–September 2026.
Disclaimer — Software Use & Risk Disclosure
Nordman Algorithms is a trade name of Nordman Algorithms OÜ (Reg. No. 14435535), registered in Tallinn, Estonia.
Software Use
Software Nature & User Responsibility — Nordman Algorithms provides algorithmic software tools for technical analysis. Nordman Algorithms is not a financial advisor and is not liable for any losses. All trades conducted based on the software’s output are executed at the user’s sole discretion and risk.
Visual Markers & Signal Disclosure — This software may display visual markers (such as arrows, dots, or alerts) when predefined mathematical conditions are met. These markers are provided for educational and analytical purposes only, must not be interpreted as financial guidance, and do not constitute a recommendation to buy, sell, or hold any financial instrument. Users must independently validate all visual cues within their own trading methodology.
No Financial Advice — Nordman Algorithms does not provide discretionary trading signals, investment advice, or managed signal services. Our software represents a mathematical visualization of historical and real-time data. The appearance of a visual marker does not guarantee a profitable trade or predict future market behavior.
Read the full Terms of Service →Risk Disclosure
Trading Risk Warning — Futures, Forex, and options trading involve significant risk. Risk capital is money that can be lost without jeopardizing financial security. Only risk capital should be used for trading. Past performance is not indicative of future results. An investor could potentially lose all or more than the initial amount committed.
ESMA Risk Warning — Financial instruments, especially those involving leverage such as CFDs and Forex, are complex and carry a high risk of rapid financial loss. Our software provides analytical outputs and visual markers based on predefined mathematical conditions and does not mitigate or reduce inherent market risks. You should carefully consider whether you understand how leveraged financial instruments work and whether you can afford the high risk of losing your capital.
CFTC Rule 4.41 — Hypothetical or simulated performance results have inherent limitations. Unlike actual performance records, simulated results do not represent real trading. Because trades have not actually been executed, these results may under- or over-compensate for the impact of market factors such as liquidity. Simulated results are also subject to the benefit of hindsight. No representation is being made that any account will achieve profits or losses similar to those shown.
Read the full Risk Disclosure →Trademark Notice — NinjaTrader® is a registered trademark of NinjaTrader Group, LLC. No NinjaTrader company has any affiliation with the owner, developer, or provider of the products or services described herein, or any interest, ownership or otherwise, in any such product or service, or endorses, recommends or approves any such product or service.
Need a different setup?
We can customize this indicator to your workflow, or convert it into a fully automated trading strategy with risk management and trailing-stop logic. Fixed-price quote before development begins.
