Candlestick.

PRO

Show four prices per period in a candlestick.

<sy-candlestick-chart>Installation and integration API reference

LIVE EXAMPLE

OHLC candles

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Interact with the chart to see selection and range-change results here.

Represent open, high, low, and close prices as candles. All values are sample data.

View code

Current preview

<div id="chart-container" style="width: 100%; min-width: 0;"></div>

<script type="module">
  import { defineCustomElement as define0 } from '@syidax/advanced-pro/components/sy-candlestick-chart.js';
  define0();

  // Pro: complete registerLicense at app startup using your issued certificate.
  // The website preview certificate is not for use in customer apps.
  const specs = [
    {
      "id": "example-chart",
      "tag": "sy-candlestick-chart",
      "props": {
        "data": [
          {
            "time": 1767225600000,
            "open": 100,
            "close": 95,
            "high": 103,
            "low": 92,
            "volume": 1200
          },
          {
            "time": 1767312000000,
            "open": 104,
            "close": 106,
            "high": 109,
            "low": 101,
            "volume": 1337
          },
          {
            "time": 1767398400000,
            "open": 107,
            "close": 105,
            "high": 110,
            "low": 102,
            "volume": 1474
          },
          {
            "time": 1767484800000,
            "open": 109,
            "close": 114,
            "high": 117,
            "low": 106,
            "volume": 1611
          },
          {
            "time": 1767571200000,
            "open": 108,
            "close": 109,
            "high": 112,
            "low": 105,
            "volume": 1748
          },
          {
            "time": 1767657600000,
            "open": 106,
            "close": 103,
            "high": 109,
            "low": 100,
            "volume": 1885
          },
          {
            "time": 1767744000000,
            "open": 102,
            "close": 106,
            "high": 109,
            "low": 99,
            "volume": 2022
          },
          {
            "time": 1767830400000,
            "open": 100,
            "close": 100,
            "high": 103,
            "low": 97,
            "volume": 2159
          },
          {
            "time": 1767916800000,
            "open": 98,
            "close": 94,
            "high": 101,
            "low": 91,
            "volume": 2296
          },
          {
            "time": 1768003200000,
            "open": 99,
            "close": 102,
            "high": 105,
            "low": 96,
            "volume": 2433
          },
          {
            "time": 1768089600000,
            "open": 101,
            "close": 100,
            "high": 104,
            "low": 97,
            "volume": 2570
          },
          {
            "time": 1768176000000,
            "open": 105,
            "close": 100,
            "high": 108,
            "low": 97,
            "volume": 2707
          },
          {
            "time": 1768262400000,
            "open": 109,
            "close": 111,
            "high": 114,
            "low": 106,
            "volume": 2844
          },
          {
            "time": 1768348800000,
            "open": 113,
            "close": 111,
            "high": 116,
            "low": 108,
            "volume": 2981
          },
          {
            "time": 1768435200000,
            "open": 115,
            "close": 120,
            "high": 123,
            "low": 112,
            "volume": 1318
          },
          {
            "time": 1768521600000,
            "open": 115,
            "close": 116,
            "high": 119,
            "low": 112,
            "volume": 1455
          },
          {
            "time": 1768608000000,
            "open": 114,
            "close": 111,
            "high": 117,
            "low": 108,
            "volume": 1592
          },
          {
            "time": 1768694400000,
            "open": 111,
            "close": 115,
            "high": 118,
            "low": 108,
            "volume": 1729
          },
          {
            "time": 1768780800000,
            "open": 108,
            "close": 108,
            "high": 111,
            "low": 105,
            "volume": 1866
          },
          {
            "time": 1768867200000,
            "open": 105,
            "close": 101,
            "high": 108,
            "low": 98,
            "volume": 2003
          },
          {
            "time": 1768953600000,
            "open": 105,
            "close": 108,
            "high": 111,
            "low": 102,
            "volume": 2140
          },
          {
            "time": 1769040000000,
            "open": 107,
            "close": 106,
            "high": 110,
            "low": 103,
            "volume": 2277
          },
          {
            "time": 1769126400000,
            "open": 110,
            "close": 105,
            "high": 113,
            "low": 102,
            "volume": 2414
          },
          {
            "time": 1769212800000,
            "open": 114,
            "close": 116,
            "high": 119,
            "low": 111,
            "volume": 2551
          },
          {
            "time": 1769299200000,
            "open": 119,
            "close": 117,
            "high": 122,
            "low": 114,
            "volume": 2688
          },
          {
            "time": 1769385600000,
            "open": 121,
            "close": 126,
            "high": 129,
            "low": 118,
            "volume": 2825
          },
          {
            "time": 1769472000000,
            "open": 123,
            "close": 124,
            "high": 127,
            "low": 120,
            "volume": 2962
          },
          {
            "time": 1769558400000,
            "open": 121,
            "close": 118,
            "high": 124,
            "low": 115,
            "volume": 1299
          },
          {
            "time": 1769644800000,
            "open": 119,
            "close": 123,
            "high": 126,
            "low": 116,
            "volume": 1436
          },
          {
            "time": 1769731200000,
            "open": 116,
            "close": 116,
            "high": 119,
            "low": 113,
            "volume": 1573
          },
          {
            "time": 1769817600000,
            "open": 113,
            "close": 109,
            "high": 116,
            "low": 106,
            "volume": 1710
          },
          {
            "time": 1769904000000,
            "open": 112,
            "close": 115,
            "high": 118,
            "low": 109,
            "volume": 1847
          }
        ],
        "timeScale": "ordinal",
        "volume": "off",
        "width": 640,
        "height": 360,
        "brandPosition": "bottom-right",
        "brandLogo": ""
      }
    }
  ];
  const container = document.querySelector('#chart-container');
  const elements = specs.map(({ tag, id, props }) => {
    const element = document.createElement(tag);
    element.id = id;
    Object.assign(element, props);
    element.setAttribute('aria-label', 'candlestick example chart');
    return element;
  });
  container.replaceChildren(...elements);
  const chart = elements.at(-1);
  const onEvent = event => {
    console.log('pointClick', event.detail);
  };
  chart.addEventListener('pointClick', onEvent);
  const observer = new ResizeObserver(([entry]) => {
    const width = Math.max(160, Math.floor(entry.contentRect.width));
    elements.forEach(element => { element.width = width; });
  });
  observer.observe(container);

  // In an SPA, call this function when the view is disposed.
  function disposeChart() {
    observer.disconnect();
    chart.removeEventListener('pointClick', onEvent);
    container.replaceChildren();
  }
</script>

Usage and data

Explore changes in opening, high, low, and closing prices.

The example uses fictional prices. Match time zones, trading sessions, and adjusted-price conventions to your actual data.

Data contract

Property	Input format
`data`	An array of { time, open, high, low, close, volume? }.
`timeScale`	ordinal reflects trading order; linear reflects elapsed time.
`volume`	Select pane to display volume alongside prices.

Updating data

Assign a new array or object to the property instead of mutating values inside an array. Chart events provide selection results through event.detail. When disposing of the view, clean up ResizeObserver and event listeners registered by your app.

Feature examples

Try 24 interactive feature examples and inspect their code. Select “Edit in preview” to combine more options in the settings panel above.