Financial Charts in JavaScript Chart control

31 Jan 2023 / 5 minutes to read

Financial charts are used to illustrate the movements in the price of a financial instrument over time.

Chart supports the following financial series

Hilo

Hilo Series illustrates the price movements in stock using the high and low values. To render a Hilo series, use series type as Hilo and inject HiloSeries module using Chart.Inject(HiloSeries) method.

Hilo series requires 3 fields (x, high and low) to show the high and low price in the stock.

Source

Preview

index.ts

index.html

import { Chart, HiloSeries,Category } from '@syncfusion/ej2-charts';
Chart.Inject(HiloSeries, Category);
let chartData: any[] = [
    { x: 'Jan', low: 87, high: 200 }, { x: 'Feb', low: 45, high: 135 },
    { x: 'Mar', low: 19, high: 85 }, { x: 'Apr', low: 31, high: 108 },
    { x: 'May', low: 27, high: 80 }, { x: 'June', low: 84, high: 130 },
    { x: 'July', low: 77, high: 150 }, { x: 'Aug', low: 54, high: 125 },
    { x: 'Sep', low: 60, high: 155 }, { x: 'Oct', low: 60, high: 180 },
    { x: 'Nov', low: 88, high: 180 }, { x: 'Dec', low: 84, high: 230 }
];
let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
    },
    series:[
        {
            dataSource: chartData,
            xName: 'x', high: 'high', low: 'low',
            //Series type as Hilo
            type: 'Hilo'
        }
    ],
}, '#element');

<!DOCTYPE html>
<html lang="en">

<head>
            
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

High Low Open Close

HiloOpenClose series is used to represent the low, high, open and closing values over time. To render a HiloOpenClose series, use series type as HiloOpenClose and inject HiloOpenCloseSeries module using Chart.Inject(HiloOpenCloseSeries) method.

HiloOpenClose series requires 5 fields (x, high, low, open and close) to show the high, low, open and close price values in the stock.

Source

Preview

index.ts

index.html

import { Chart, HiloOpenCloseSeries, Category } from '@syncfusion/ej2-charts';
Chart.Inject(HiloOpenCloseSeries, Category);
let chartData: any[] = [
    { x: 'Jan', open: 120, high: 160, low: 100, close: 140 },
    { x: 'Feb', open: 150, high: 190, low: 130, close: 170 },
    { x: 'Mar', open: 130, high: 170, low: 110, close: 150 },
    { x: 'Apr', open: 160, high: 180, low: 120, close: 140 },
    { x: 'May', open: 150, high: 170, low: 110, close: 130 }
];
let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
    },
    series:[
        {
            dataSource: chartData,
            xName: 'x', open: 'open', close: 'close', high: 'high', low: 'low',
            // Series type as HiloOpenClose
            type: 'HiloOpenClose'
        }
    ],
    title: 'Financial Analysis'
}, '#element');

<!DOCTYPE html>
<html lang="en">

<head>
            
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Customization of HiloOpenClose Series

In HiloOpenClose series, bullFillColor is used to fill the segment when the open value is greater than the close value and bearFillColor is used to fill the segment when the open value is less than the close value.

By default, bullFillColor is set as red and bearFillColor is set as green.

Source

Preview

index.ts

index.html

import { Chart, HiloOpenCloseSeries, Category } from '@syncfusion/ej2-charts';
import { hocData } from './datasource.ts';
Chart.Inject(HiloOpenCloseSeries, Category);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
    },
    series: [
        {
            type: 'HiloOpenClose',
            // sets the bullFill and bearFill color of hiloopenclose chart
            bearFillColor: '#e56590',
            bullFillColor: '#f8b883',
            dataSource: hocData,
            xName: 'x', open: 'open', close: 'close', high: 'high', low: 'low',
        }
    ],
}, '#element');

<!DOCTYPE html>
<html lang="en">

<head>
            
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Candle

Candle series is similar to Hilo Open Close series, are used to represent the low, high, open and closing price over time. To render a candle series, use series type as Candle and inject CandleSeries module using Chart.Inject(CandleSeries) method.

Source

Preview

index.ts

index.html

import { Chart, CandleSeries, Category, DateTime } from '@syncfusion/ej2-charts';
Chart.Inject(CandleSeries, Category, DateTime);
let chartData: any[] = [
    { x: 'Jan', open: 120, high: 160, low: 100, close: 140 },
    { x: 'Feb', open: 150, high: 190, low: 130, close: 170 },
    { x: 'Mar', open: 130, high: 170, low: 110, close: 150 },
    { x: 'Apr', open: 160, high: 180, low: 120, close: 140 },
    { x: 'May', open: 150, high: 170, low: 110, close: 130 }
];
let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
    },
    series:[
        {
            dataSource: chartData,
            xName: 'x', open: 'open', close: 'close', high: 'high', low: 'low',
            // Series type as candle series
            type: 'Candle'
        }
    ],
}, '#element');

<!DOCTYPE html>
<html lang="en">

<head>
            
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Hollow Candles

Candle charts allow to visually compare the current price with previous price by coloring them.

Candles are filled/left as hollow based on the following criteria.

States	Description
Filled	candle sticks are filled when the close value is lesser than the open value
Unfilled	candle sticks are unfilled when the close value is greater than the open value

The color of the candle will be defined by comparing with previous values. Bear color will be applied when the current closing value is greater than the previous closing value. Bull color will be applied when the current closing value is less than the previous closing value.

By default, bullFillColor is set as red and bearFillColor is set as green.

Solid Candles

enableSolidCandles is used to enable/disable the solid candles. By default is set to be false. The fill color of the candle will be defined by its opening and closing values.

bearFillColor will be applied when the opening value is less than the closing value. bullFillColor will be applied when the opening value is greater than closing value.

Source

Preview

index.ts

index.html

import { Chart, CandleSeries, Category, DateTime } from '@syncfusion/ej2-charts';
import { hocData } from './datasource.ts';
Chart.Inject(CandleSeries, Category, DateTime);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
    },
    series:[
        {
            dataSource: hocData,
            xName: 'x', open: 'open', close: 'close', high: 'high', low: 'low',
            bearFillColor: '#e56590',
            bullFillColor: '#f8b883',
            // Series type as candle series
            type: 'Candle'
        }
    ],
    title: 'Shirpur Gold Refinery Share Price'
}, '#element');

<!DOCTYPE html>
<html lang="en">

<head>
            
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Financial Charts in JavaScript Chart control

See Also