
Equivolume is a type of trading chart that combines price and volume data into each data point, presenting them as rectangular bars. It is quite similar to candlestick charts, but the volume is incorporated into the data point rather than added as an indicator on the side. The height of each bar represents the day's trading range, while the width of the bars varies in relation to the trading volume. Equivolume boxes are black when the close is above the prior close and red when the close is below the prior close. So, do equivolume charts have black candles? Yes, they do.
| Characteristics | Values |
|---|---|
| Appearance | Similar to candlestick charts, but with volume incorporated into the data point |
| Data Display | Combines price and volume of a security into a single chart, represented by bars of varying height and width |
| Bar Height | Represents the high and low for each period |
| Bar Width | Represents the volume for each period relative to the total volume traded over the specified time period |
| Colour | Black when the close is above the prior close, red when the close is below the prior close |
| Criticism | Does not show a security's open and close prices |
| Usefulness | Provides a visual aid for volume and high/low data, which can be useful for technical analysts |
| Signal to Traders | Wider-than-average bars can indicate a security price breakout or breakdown, signalling traders to take action |
| Limitations | Does not display open and close data points of the security, which can be found on a candlestick chart |
| Volume Interpretation | Wider candles suggest more significant volume |
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What You'll Learn
- Equivolume boxes are black when the close is above the prior close
- The width of each box represents the percentage of total volume
- A break on low volume is not as convincing as a break on high volume
- Equivolume is similar to candlestick charts, but volume is incorporated into the data
- The height of each bar represents the day's trading range

Equivolume boxes are black when the close is above the prior close
Equivolume is a type of trading chart that combines price and volume data into each data point. It is similar to a candlestick chart, but the candlesticks are replaced with boxes that can be square or rectangular. Each box represents one period, which can be a day, week, month, etc. The height of the box represents the trading range, with the upper boundary defined by the period's high price and the lower boundary defined by the period's low price. The width of the box represents the normalised volume for the look-back period, with wider boxes indicating higher trading volume.
The colour of the equivolume boxes depends on the closing price in relation to the prior close. Equivolume boxes are black when the close is above the prior close, indicating an "up" period. Conversely, the boxes are red when the close is below the prior close, indicating a "down" period. This colour-coding provides a visual representation of price trends and makes it easy to identify periods of buying or selling pressure.
For example, in Figure 1 of an article on AAII, the stock surged above 345 in late October but then moved sharply lower in early November, forming a long-red-wide Equivolume box. This red box indicates that the closing price was below the prior close, signalling a downward trend and selling pressure. Subsequently, two more long-red-wide boxes appeared as the stock broke support at 210, further reinforcing the selling pressure.
In another example from StockCharts.com, the chart shows Flextronics with Equivolume boxes and volume. A series of wide black boxes from late October to late November reflect buying pressure or accumulation. The stock encountered resistance in November, but it broke through this zone with a surge in early December. The black boxes indicate that the closing price was above the prior close during this period, suggesting an upward trend and buying pressure.
By utilising Equivolume charts, investors and traders can easily visualise the relationship between price and volume. The colour-coding of the boxes provides a simple yet powerful tool for identifying trends and making informed decisions. However, it is important to note that no single technical chart is foolproof, and other tools should also be considered for a comprehensive analysis.
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The width of each box represents the percentage of total volume
Equivolume is a type of trading chart that combines price and volume data into each data point. It visually represents this information using rectangular bars, with the height of each bar representing the day's trading range and the width of the bar corresponding to the trading volume during that day. The width of each box, or bar, on an Equivolume chart represents the percentage of total volume traded over the specified time period. For example, for a four-month daily chart, each day's volume is divided by the total volume for the four-month period, and the width of the box reflects this percentage.
The varying widths of the boxes on an Equivolume chart result in a non-uniform date axis, with some periods extending longer or shorter on the x-axis depending on the trading volume. Wide boxes indicate high-volume days, while narrow boxes represent low-volume days. This visualisation can provide valuable insights for traders, as high volume often indicates elevated interest and strong buying or selling pressure, potentially signalling a significant price move. Conversely, low volume suggests tepid interest and weaker pressure, indicating a less convincing move.
The Equivolume chart was developed by Richard W. Arms Jr. and is similar in appearance to a candlestick chart. However, unlike candlestick charts, Equivolume charts do not display open and close data points. Instead, the Equivolume boxes consist of the price high, price low, and volume, with the price high forming the upper boundary, the price low forming the lower boundary, and volume dictating the width. The boxes are black when the close is above the prior close and red when the close is below.
While Equivolume charts offer a unique perspective by integrating volume and price information, they are not without limitations. One criticism is their lack of open and close price data, which can be found on traditional candlestick charts. Additionally, no single technical chart is foolproof, so traders should utilise multiple tools and indicators to make informed decisions. Nonetheless, Equivolume charts provide a valuable visualisation of volume and price dynamics, aiding technical analysts in their assessment of market trends and potential trading opportunities.
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A break on low volume is not as convincing as a break on high volume
Equivolume is a type of trading chart that combines price and volume data into each data point, presenting them visually as rectangular bars. The height of each bar represents the day's trading range, while the width of the bars corresponds to the trading volume during that day. This makes it easier to identify volume in relation to price movements.
The equivolume chart is similar to a candlestick chart, but with the volume incorporated into the data point rather than added as a separate indicator. The width of the "candles" or boxes in an equivolume chart represents the volume, with wider candles indicating higher volume. This allows for a quick visual assessment of the volume and its significance in relation to price movements.
When analysing an equivolume chart, it is important to consider the volume in relation to potential breakouts or breakdowns. A breakout or breakdown on low volume is less convincing than one on high volume. Low volume indicates tepid interest and weak buying or selling pressure, while high volume reflects elevated interest and strong buying or selling pressure. For example, in Chart 4 of the Caterpillar (CAT) stock analysis, the final and biggest breakout occurred with a wide candlestick, indicating strong buying pressure.
While equivolume charts can provide valuable insights, they also have limitations. One criticism is that they do not display the security's open and close prices or data points, which may be important for traders to consider when making decisions. Additionally, no single technical chart is foolproof, so traders should utilise multiple tools and indicators to guide their trading decisions.
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Equivolume is similar to candlestick charts, but volume is incorporated into the data
Equivolume is a type of trading chart that combines price and volume data into a single chart. It is similar in appearance to candlestick charts, but the volume is incorporated into the data and is represented by the width of each bar or box. The height of each bar represents the day's trading range, with the width indicating the volume for that period relative to the total volume traded over the specified time period. This means that the date axis on an Equivolume chart is typically non-uniform, with each day's width varying based on its trading volume.
The Equivolume chart was developed by Richard W. Arms Jr. and aims to provide a visual representation of both price and volume information. Each bar or box consists of three components: the price high, the price low, and the volume. The price high forms the upper boundary, the price low forms the lower boundary, and the volume dictates the width. The colour of the box also conveys information, with black boxes indicating that the close is above the prior close, and red boxes showing that the close is below the prior close.
By incorporating volume into the data, Equivolume charts offer a unique perspective on trading activity. Classical patterns, such as triangles, wedges, and double tops, can still be identified, but with the added benefit of having volume built right into the pattern. This makes it easier to verify volume for reversals, big moves, support/resistance breaks, and climaxes. For example, a wide bar on an Equivolume chart may indicate a significant price move, as large volume usually precedes such a move.
It is worth noting that Equivolume charts have their limitations. One criticism is that they do not display the open and close data points of the security, which can be important for traders. Additionally, no single technical chart is foolproof, so traders should utilise other tools in conjunction with Equivolume charts to make informed decisions.
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The height of each bar represents the day's trading range
Equivolume is a type of trading chart that combines price and volume data into each data point, which is represented by rectangular bars of varying heights and widths. The height of each bar represents the day's trading range, with the upper boundary indicating the highest price reached during the period and the lower boundary showing the lowest price. These charts provide a visual depiction of the security's price range and trading volume, allowing for the identification of patterns, trends, and potential trading opportunities.
The width of the bars in an equivolume chart corresponds to the trading volume during that day. Wider bars indicate higher trading volume, while narrower bars represent lower volume. This visual representation of volume provides additional context to the price data, aiding technical analysts in their interpretation of the chart.
The equivolume chart was developed by Richard W. Arms Jr. as an alternative to traditional candlestick charts. While candlestick charts display trading volume separately, equivolume charts integrate volume into each data point. This integration allows for a more comprehensive analysis of price and volume dynamics, making it easier to identify reversals, big moves, support/resistance breaks, and climaxes.
It is important to note that equivolume charts have their limitations. One criticism is that they do not show the security's open and close prices, which can make it challenging to identify areas of buying or selling pressure. As a result, traders often use equivolume charts in conjunction with other tools and indicators to guide their trading decisions.
In summary, the height of each bar in an equivolume chart represents the day's trading range, providing a visual representation of the price movement of a security. The width of the bars indicates the trading volume, with wider bars signifying higher volume and narrower bars indicating lower volume. Equivolume charts offer a unique perspective on price and volume data, enhancing the analytical process for traders and investors.
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Frequently asked questions
Equivolume is a type of trading chart that combines price and volume information into every data point. It visually depicts this data as rectangular bars, with the height of each bar representing the day's trading range and the width representing the volume for each period relative to the total volume traded over the specified time period.
Equivolume charts use boxes or candlesticks that can be black or red. A black box or candlestick indicates that the close is above the prior close, while a red one shows that the close is below the prior close.
Equivolume charts provide a visual representation of volume, making it easier to identify significant price moves. Classical patterns, such as triangles, wedges, and double tops, are still visible, with the added benefit of having volume built into the pattern.
To create an equivolume chart, you can use tools such as SharpCharts or TradingView. On SharpCharts, users can find equivolume under "Chart Attributes" and "Type," with volume options available. On TradingView, users can access scripts and indicators to create equivolume charts, such as the LuxAlgo script.










































