Introduction to Intraday Intensity Index (III)
Definition
The Intraday Intensity Index (III), also known as the Accumulation/Distribution Index, is a technical indicator developed by Dave Bostian measuring intraday price movements and volume of a security. It seeks to provide insights into the buying and selling pressure experienced by the security during a trading session.
Purpose
Traders use the III to understand the balance between buying and selling pressure, which can help them make informed decisions about entering or exiting trades. The index aims to reveal whether a security’s price is being pushed up or down by the market’s trading volume.
Example scanners based on Intraday Intensity Index (III)
The Intraday Intensity Index (III) can be used in Scanning the market. To see how exactly it can be used in this way, we provide the following samples. Both scanners search the market for stocks using this indicator.
Calculating the Intraday Intensity Index
Formula
The formula for the Intraday Intensity Index is as follows:
III = [(2 * Close - High - Low) / (High - Low)] * Volume
The index uses the most recent close, high, and low prices of a security, as well as its trading volume, to calculate its value.
Example calculation
Suppose a stock has the following values for the day:
- Close: $100
- High: $105
- Low: $95
- Volume: 10,000 shares
The Intraday Intensity Index would be calculated as follows:
III = [(2 * $100 - $105 - $95) / ($105 - $95)] * 10,000
III = [($200 - $105 - $95) / ($105 - $95)] * 10,000
III = [$0 / $10] * 10,000
III = 0
Interpreting the Intraday Intensity Index
Positive and negative values
A positive index value indicates the stock is experiencing buying pressure, while a negative value suggests selling pressure. The greater the absolute value, the stronger the buying or selling pressure.
Trading signals
Traders can use the III to identify potential trade entry and exit points. When the index moves sharply positive, it may signal a buying opportunity, while a sharp negative movement could indicate a possible selling opportunity.
Combining Intraday Intensity Index with Other Indicators
Moving averages
The Simple Moving Average (SMA) is a widely-used directional indicator that helps traders identify the overall trend direction. By combining the III with the SMA, traders can assess whether the buying or selling pressure aligns with the general trend. For instance, if the III is consistently above the SMA, it may indicate intense buying pressure during an uptrend, signaling a potential trading opportunity.
Bollinger Bands
Bollinger Bands are a volatility indicator that consists of a moving average (usually the SMA) and two standard deviation lines above and below it. The bands widen when volatility is high and contract when volatility is low. Combining the III with Bollinger Bands can provide traders with insights into the market’s sentiment during periods of increased or decreased price volatility. For example, suppose the III is positive and the price is near the upper Bollinger Band. In that case, it could suggest intense buying pressure in a volatile market, potentially indicating a breakout or continuation.
By combining the III with a directional indicator like the SMA and a volatility indicator like Bollinger Bands, traders can diversify their analysis and gain a more comprehensive understanding of the market dynamics. This approach can help identify trends and potential trading opportunities more effectively.
Advantages and Limitations
Pros
- The Intraday Intensity Index provides a unique perspective on price movements by incorporating volume data. This can help traders identify the strength of buying or selling pressure in the market.
- The III can be used with other technical indicators to develop more comprehensive trading strategies.
- As a versatile indicator, the III can be applied to various timeframes and asset classes, making it suitable for different trading styles.
Cons
- The Intraday Intensity Index may generate false signals, especially in highly volatile or illiquid markets where price fluctuations can distort the index values.
- The III is a lagging indicator, meaning it is based on past data, which can limit its predictive capabilities.
- Like other technical indicators, the III may not always provide accurate signals, and traders should use it with other forms of analysis to validate their trading decisions.
Using Intraday Intensity Index in Trading Strategies
Trend-following strategy
A trend-following strategy using the III involves entering a trade when the index indicates strong buying or selling pressure in the direction of the existing trend. Traders can use a moving average crossover system, with the III as a confirmation signal, to enter and exit trades based on the direction of the trend.
Reversal strategy
A reversal strategy using the III involves identifying potential trend reversals by monitoring the index for sharp changes in buying or selling pressure. Traders can combine the III with the RSI or other momentum indicators to identify overbought or oversold conditions, which may signal a potential trend reversal.
Example strategies based on Intraday Intensity Index (III)
The Intraday Intensity Index (III) can be used in Testing Strategies. To see how exactly it can be used in this way, we provide the following sample. The strategy tests buying and selling rules built around this indicator.
The bottom line
The Intraday Intensity Index is a valuable technical indicator that integrates volume and price data to help traders gauge the buying and selling pressure in a security’s price movements. While the III has limitations, traders can combine it with other technical indicators to develop more comprehensive trading strategies. As with any trading tool, traders should consider the III as part of a broader analytical framework and exercise caution when interpreting signals to make informed trading decisions.
