JavaScript CandleStick Chart Basic Example

javascript candlestick chart

SciChart.js supports Candlestick Charts with custom colors per bar and a Date X-Axis. Candlestick charts can be animated, dynamically updated for real trading apps or combined with other series types to draw technical indicators or shapes. The angle of the horizontal axis text, if it’s drawn slanted. Ignored if hAxis.slantedText is false, or is in auto mode, and the chart decided to draw the text horizontally. If the angle is positive, the rotation is counter-clockwise, and if negative, it is clockwise.

  • To learn more about creating and customizing candlestick charts, see the candlestick chart documentation.
  • Investors can determine whether the closing price was higher or lower than the opening price by looking at the wide portion of the candlestick.
  • Candlestick charts are often

    used to show stock value behavior.

  • However, when I finally did, I realized they are actually quite easy and straightforward to read.

Especially when looking at live market data, a common way to display the information is candlestick charts. The color of the candle can indicate whether the stock price went up or down during that period, with green or blue usually indicating a rise and red indicating a decline. Multi Series Candlestick chart are useful when you have to compare two or more data sets, each containing data points representing open, high, low and close values. Candlestick Graphs are mostly used to represent stock price, foreign exchange, commodity, etc.

HTML5 Candlestick Charts

Any and all tooltip actions should be set prior to calling the chart’s draw() method. Returns an object containing information about the onscreen placement of the chart and its elements. The color of the vertical gridlines inside the chart area. If set to true, use HTML-rendered (rather than SVG-rendered) tooltips. HAxis property that specifies the title of the horizontal axis.

javascript candlestick chart

Simple BTC/EUR real time chart using data from Binance REST API and Kraken WebSocket API and Highcharts for visualization. You can set risingColor or color to show the rising or falling price in different colors. Some other frequently used customizations include zoomEnabled, animationEnabled, etc.

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The color of the vertical minor gridlines inside the chart area. If set to true, allows the drawing of tooltips to flow outside of the bounds of the chart on all sides. How many horizontal axis labels to show, where 1 means show every label, 2 means show every other label, and so on.

javascript candlestick chart

Default is to try to show as many labels as possible without overlapping. Labels can span multiple lines if they are too long, and the number of lines is, by default, limited by the height of the available space. HAxis property that makes the horizontal axis a logarithmic scale (requires all values to be positive). The color of the horizontal minor gridlines inside the chart area. In the resulting JS candlestick chart, it is possible to observe how the EUR/USD currency pair traded over two years.

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Plotly is a free and open-source graphing library for JavaScript. Now that everything is set up, proceed to the chart code itself. OHLCSeries accepts data in the form of interface ‘XOHLC’. Fired when an error occurs when attempting to render the chart. For more information on how to use these events, see

Basic Interactivity,

Handling Events, and

Firing Events. Clears the chart, and releases all of its allocated resources.

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Also called a Japanese candlestick chart, this chart type is one of the most popular forms of financial and stock data visualization. Each candlestick represents information about the open, high, low, and close price of the day. Candlestick charts are widely used in technical analysis of price movement patterns. Candlestick charts are a fantastic data visualization tool for tracking the price movements of stocks over a period of time. In this tutorial, I’ll show you how to create your own candlestick chart using JavaScript.

Final JavaScript Candlestick Chart Application

Use the scroller to zoom into a shorter period if you want. That’s where I will put all the code for the JS candlestick chart. When hovering the plot area, it helps to gauge a precise position on the value scale, helps display tooltips for multiple series at a time. Each object in the chart can be interacted with, creating an animation that will aid in our understanding of the data shown. Let’s configure the x-axis to show Date and Time information.

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Since the dataset is pretty large, instead of inserting the data directly in the .html file, let’s put it in a CSV file for convenience. After configuring the auto-cursor behavior and styling it, we get the output shown in the second image. The first image is showing to default cursor settings. With the right set of options, candlestick charts can be made to

resemble simple waterfall charts.

Returns the vertical data value at yPosition, which is a pixel offset down from the chart container’s top edge. Returns the tooltip action object with the requested actionID. VAxis property that specifies the baseline for the vertical axis. If the baseline is larger than the highest grid line or smaller than the lowest grid line, it will be rounded to the closest gridline. Minimum horizontal spacing, in pixels, allowed between two adjacent text labels.

We pride ourselves on offering the fastest rendering JavaScript charts. Our features enable you to visualise more data more effectively, so you can make informed decisions. Customizable and interactive design features ensure you can deliver charts that are on-brand and javascript candlestick chart engaging for the user. Sometimes, in trading, you are not able to see the volume of data you require. With SciChart.js, there are fewer limitations – for instance, you can visualize a year’s worth of 1-minute OHLC bars in a Candlestick Chart, as opposed to a few days.


Replaces the automatically generated Y-axis ticks with the specified array. Each element of the array should be either a valid tick value (such as a number, date, datetime, or timeofday), or an object. If it’s an object, it should have a v property for the tick value, and an optional f property containing the literal string to be displayed as the label. Replaces the automatically generated X-axis ticks with the specified array. Do you have trading data, looking for a way to effectively visualize it for your website or app project?

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