JavaScript Multi Series Candlestick Charts

A trader can instantly compare the relationship between the open and close as well as the high and low prices. They can also be used to predict market reversals which can be extremely helpful for professional investors, brokers, etc. The shape of a candlestick is based on the relationship between the opening, closing, high, and low prices for the day. The wick of the candlestick shows the day’s highs and lows in comparison to the opening and closing prices. Moves the min value of the vertical axis to the specified value; this will be downward in most charts.

Creating a Candlestick Chart with JS to Analyze Stocks

I have added some significant events that occurred between 2020 and 2022 based on information from the TSMC Wikipedia page and various news portals. Each object in the chart can be interacted with, creating an animation that will aid in our understanding of the data shown. If you want to display the candles of a market session in real-time, you can easily do this with the updateSeries() method. Passes back the current legend zero-based page index and the total number of pages. The chart accepts further method calls only after the readyevent is fired. The direction in which the values along the vertical axis grow.

DateTime axisTickStrategy

This function will parse the CSV file and create a data table, which will be used to plot the chart. 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. Do you have trading data, looking for a way to effectively visualize it for your website or app project? If so, a JS candlestick chart could be your best pick.

1. For this article, we’ll use the rectangle() method, which requires four points to define its location.
2. Let’s get started creating the JavaScript Candlestick chart by initializing the chart by calling the LightningChart () constructor.
3. If you specify a positive number for gridlines.count, it will be used to compute the minSpacing between gridlines.
4. This value specifies the most number of levels to use; the server can use fewer levels, if labels can fit without overlapping.
5. Overrides the default format for various aspects of date/datetime/timeofday data types when used with chart computed minorGridlines.

Add() & XOHLC

All code and data are processed and rendered in the browser. The color of the chart border, as an HTML color string. This JavaScript Chart demo shows you how to create a JavaScript Candlestick Chart or Stock Chart using SciChart.js. You can enable legends by setting showInLegend to true. This feature is really useful for improving the readability of the graph. Other related customizations include exportEnabled, animationEnabled, etc.

Continue learning with LightningChart

The candles data and all the customization options should be stored in a configuration object that is passed to the constructor. Any and all tooltip actions should be set prior to calling the chart’s draw() method. 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.

Ignored if this is set to a value greater than the minimum y-value of the data. Moves the max value of the vertical axis to the specified value; this will be upward in most charts. Ignored if this is set to a value smaller than the maximum y-value of the data.

Technically the charts generated by ApexCharts are dynamically generated SVG. This means that the rendering quality is excellent even with high-resolution devices. 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.

Let’s configure the x-axis to show Date and Time information. DateTime data with irregular intervals can be shown on the DateTime category axis. For example, the business days alone can be represented in a week here. Conversely, the candlestick turns red when the price opens and then falls. Investors can determine whether the closing price was higher or lower than the opening price by looking at the wide portion of the candlestick.

By default, low values are on the bottom of the chart. Start, center, and end are relative to the style — vertical or horizontal — of the legend. The direction in which the values along the horizontal axis grow. The default font size, in pixels, of all text in the chart. You can override this using properties for specific chart elements.

Minimum horizontal spacing, in pixels, allowed between two adjacent text labels. If false, will hide outermost labels rather than allow them to be cropped by the chart container. In focusTarget ‘category’ the tooltip displays all the category values. This may be useful for comparing values of different series.

The stroke width of falling candles, as an HTML color string. The stroke color of falling candles, as an HTML color string. The fill color of falling candles, as an HTML color string. If true, rising candles will appear hollow and falling candles will appear solid, otherwise, the opposite. Weset bar.groupWidth to ‘100%’ to remove thespace between the bars.

Many different sources can be used to populate the chart data automatically. One example is the REST API provided by the IEX Cloud javascript candlestick chart financial data infrastructure. You can now plot the chart on the page with the render() method by using this simple instruction.

Trading professionals seeking chart patterns can use candlesticks charts for their analysis. Many traders consider candlestick charts to be easier to read and more visually appealing than conventional bar charts. Let’s make our candlestick chart even more informative by adding event markers. This will provide a better understanding of key developments and dividends that occurred during the selected time period. Let’s add some customization to our candlestick chart by setting up a custom date range picker and selector. With this feature, users can easily navigate date/time-based charts and select specific periods for further analysis.

Moves the min value of the horizontal axis to the specified value; this will be leftward in most charts. Ignored if this is set to a value greater than the minimum x-value of the data. Moves the max value of the horizontal axis to the specified value; this will be rightward in most charts. Ignored if this is set to a value smaller than the maximum x-value of the data. The most popular chart type for traders is the candlestick chart. Candlestick provides visual support for making decisions in the case of stocks, foreign exchange or commodities.