Log Momentum
Feb 15, 2018
The Log Momentum indicator provides a measurement of price velocity calculated in logarithmic space, offering a clearer perspective on percentage-based rate of change compared to standard momentum oscillators.
Usage
The indicator can be used to identify trend direction and potential reversals based on its position relative to the zero-line. When the Log Momentum line is above zero, it indicates that the current price is higher than the price from the specified lookback period in log terms, suggesting bullish momentum. Conversely, a value below zero suggests bearish momentum.
Traders often look for zero-line crossovers as potential entry or exit signals:
- Bullish Signal: A crossover from below to above the zero-line.
- Bearish Signal: A crossunder from above to below the zero-line.
Details
Unlike the standard momentum indicator which calculates the simple difference between the current price and a previous price (Price - Price[n]), the Log Momentum script first converts the source price into logarithmic space. This transformation ensures that the momentum values are normalized according to percentage changes rather than absolute point changes, making the indicator more consistent across different price levels and volatile assets.
Settings
- Momentum Lookback: Defines the number of bars back to compare the current price against for the momentum calculation.
- Source: Determines the price data used for the calculation (e.g., Close, Open, High, Low).
FAQ
How do I interpret the colors of the Log Momentum line?
The line changes color based on its position relative to the zero-line: green indicates positive log momentum (price is higher than 'n' periods ago), and red indicates negative log momentum.
What is the advantage of using log space?
Calculating momentum in log space helps account for the "law of large numbers" in price movement, ensuring that a 10% move at $100 looks the same as a 10% move at $10.
How can I access the Log Momentum indicator?
You can get access on the LuxAlgo Library for charting platforms like TradingView, MetaTrader (MT4/MT5), and NinjaTrader for free.
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