The candlestick visualization allows you to visualize data that includes a number of consistent dimensions focused on price movement. The candlestick visualization includes an Open-High-Low-Close (OHLC) mode, as well as support for additional dimensions based on time series data.
- **Candles** is the default display style and creates candle-style visualizations between the open and close dimensions.
- **OHLC Bars** displays the four core dimensions open, high, low, and close values.
## Color strategy
- **Since Open** is the default behavior. This mode will utilize the _Up_ color (below) if the intra-period price movement is positive. In other words, if the value on close is greater or equal to the value on open, the _Up_ color is used.
- **Since Prior Close** is an alternative display method based where the color of the candle is based on the inter-period price movement or change in value. In other words, if the value on open is greater than the previous value on close, the _Up_ color is used. If the value on open is lower than the previous value on close, the _Down_ color is used. _This option also triggers the hollow candlestick visualization mode_. Hollow candlesticks indicate that the intra-period movement is positive (value is higher on close than on open), filled candlesticks indicate the intra-period change is negative (value is lower on close than on open). To learn more, see the [explanation of the differences](https://thetradingbible.com/how-to-read-hollow-candlesticks).
## Up & Down Colors
The **Up color** and **Down color** options select which colors are used when the price movement is up or down. Please note that the _Color strategy_ above will determine if intra-period or inter-period price movement is used to select the candle or OHLC bar color.
- **Volume** corresponds to the sample count in the given period. (for example, number of trades)
{{% admonition type="note" %}}
The candlestick visualization legend doesn't display these values.
{{% /admonition %}}
To properly map these dimensions, the query results table from your data must include _at least_ the following columns:
- timestamp
- open
- high
- low
- close
If your data can't be mapped to these dimensions for some reason (for example, because the column names aren't the same), you can map them manually using the **Open**, **High**, **Low**, and **Close** fields under the **Candlestick** options in the panel editor:
The candlestick visualization is based on the time series visualization. It can visualize additional data dimensions beyond open, high, low, close, and volume The **Include** and **Ignore** options allow it to visualize other included data such as simple moving averages, Bollinger bands and more, using the same styles and configurations available in the [time series][] visualization.
