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HTML

              
                <div id="ticker">

  <div class="ticker">

    <div class="labels">
      <div class="label" v-for="label in labels" v-bind:style="{ 'top': getCandleOffset(label) }">
        <div class="line"></div>
        <span>{{label | price(product)}}</span>
      </div>
      <div class="price" v-bind:style="{ 'top': getCandleOffset(current.close) }">
        <span>{{current.close | price(product) }}</span>
      </div>
    </div>

    <ol>
      <li v-for="candle in displayCandles" v-bind:class="{ 'up': candle.open <= candle.close }">
        <div class="min-max" v-bind:style="{ 
          'height': getCandleHeight(candle.min, candle.max), 
          'top': getCandleOffset(candle.min, candle.max) }">
        </div>
        <div class="candle" 
           v-bind:style="{ 
            'height': getCandleHeight(candle.open, candle.close), 
            'top': getCandleOffset(candle.open, candle.close) }">
        </div>        
      </li>
      
      <li v-bind:class="{ 'up': current.open <= current.close }">
        <div class="min-max" 
          v-bind:style="{ 
            'height': getCandleHeight(current.min, current.max), 
            'top': getCandleOffset(current.min, current.max) }">
        </div>
        <div class="candle current" 
             v-bind:data-open="open" 
             v-bind:style="{
              'height': getCandleHeight(current.open, current.close), 
              'top': getCandleOffset(current.open, current.close) }">
        </div>
      </li>
    </ol>

    <div class="max">${{displayMax | price(product) }}</div>
    <div class="min">${{displayMin | price(product) }}</div>

    <div class="controls">

      <select v-model="product">
        <option>BTC-USD</option>
        <option>LTC-USD</option>
        <option>LTC-BTC</option>
        <option>ETH-USD</option>
      </select>

      <select v-model="candleCount">
        <option value="20">20 candles</option>
        <option value="40">40 candles</option>
        <option value="80">80 candles</option>
      </select>

      <select v-model="interval">
        <option value="1000">1s</option>
        <option value="5000">5s</option>
        <option value="10000">10s</option>
        <option value="30000">30s</option>
        <option value="60000">1min</option>
        <option value="300000">5min</option>
        <option value="900000">15min</option>
        <option value="3600000">1hr</option>
        <option value="21600000">6hr</option>
        <option value="86400000">1day</option>
      </select>

      <span class="price">Price: <u>{{current.close | price(product) }}</></span>

    </div>
  </div>

</div>
              
            
!

CSS

              
                $col1: darken(#1e2b34, 2%);
$col2: darken(#1e2b34, 3%);

body,
html {
  -webkit-user-select: none;
  width: 100%;
  height: 100%;
  background-color: #111;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

#ticker {
  height: 100%;
  width: 100%;
  position: absolute;
  box-sizing: border-box;
}

.ticker {
  position: relative;
  box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.3),
    inset 0px 0px 35px 10px (rgba(20, 20, 20, 1));
  background-color: #1e2b34;
  background-image: -webkit-linear-gradient(
      45deg,
      $col1 25%,
      transparent 25%,
      transparent 75%,
      $col1 75%,
      $col1 100%
    ),
    -webkit-linear-gradient(45deg,
      $col1 25%, 
      $col2 25%, 
      $col2 75%, 
      $col1 75%, 
      $col1 100%);
  background-size: 100px 99px;
  background-position: 0 0, 50px 50px;
  height: 100%;
  width: 100%;
  color: white;
  padding: 30px 100px 45px 10px;
  display: table;
  table-layout: fixed;
  box-sizing: border-box;

  ol {
    margin: 0;
    padding: 0;
    height: 100%;
    display: table-row;
  }

  li {
    list-style-type: none;
    display: table-cell;
    position: relative;
    height: 100%;
    width: 100%;

    .candle {
      position: absolute;
      width: 90%;
      border: solid 1px #eb6e40;
      background-color: #ff7541;
      min-height: 1px;
      box-shadow: 5px 5px 10px rgba(0, 0, 0, 0.3);
      background: repeating-linear-gradient(
        45deg,
        #ff7541,
        #ff7541 40px,
        darken(#ff7541, 3%) 40px,
        darken(#ff7541, 3%) 80px
      );
      cursor: pointer;
      
      &:hover {
        border: solid 1px #ccc !important;
      }
    }

    .min-max {
      width: 1px;
      position: absolute;
      left: 45%;
      background-color: #ff7541;
    }

    &.up {
      .min-max,
      .candle {
        background: none;
        background-color: #477749;
        border-color: #569253;
      }

      .candle {
        background-color: #21313b;
        _background: repeating-linear-gradient(
          -45deg,
          #21313b,
          #21313b 40px,
          lighten(#21313b, 1%) 40px,
          lighten(#21313b, 1%) 80px
        );
      }
    }
  }

  .max,
  .min {
    width: 100px;
    right: -25px;
    position: absolute;
    text-align: left;
    font-size: 11px;
    font-family: Courier;
    text-decoration: underline;
    color: #999;
    display: none;
  }

  .max {
    top: 24px;
  }

  .min {
    bottom: 40px;
  }
}

.labels {
  position: absolute;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  display: table;

  .label {
    position: absolute;
    width: 100%;
    .line {
      position: absolute;
      border-bottom: rgba(255, 255, 255, 0.09) 1px dashed;
      width: 100%;
      height: 2px;
      top: -3px;
    }
    span {
      position: absolute;
      right: 30px;
      top: -15px;
      font-size: 11px;
      color: #999;
      font-family: Courier;
    }
  }

  .price {
    position: absolute;
    z-index: 2;
    right: 21px;

    span {
      position: relative;
      top: -13px;
      text-decoration: underline;
      display: block;
      color: black;
      background-color: #aaa;
      font-size: 11px;
      padding: 5px 9px 5px 9px;
      height: 16px;
      font-family: Courier;
      line-height: 16px;
      border-radius: 4px;

      &:before {
        position: absolute;
        display: block;
        content: "";
        left: -9px;
        top: 11px;
        width: 11px;
        height: 4px;
        background-color: #aaa;
      }
    }
  }
}

.controls {
  position: absolute;
  left: 10px;
  bottom: 11px;
  select {
    display: inline-block;
    -webkit-appearance: none;
    box-shadow: 0 0 10px 3px rgba(0, 0, 0, 0.5);
    border: solid 1px white;
    padding: 3px 8px;
    cursor: pointer;
    margin: 0px;
    opacity: 0.7;
    font-size: 10px;
    background-color: #141414;
    color: #ccc;
    border-radius: 0;
    text-align-last: center;
    font-size: 11px;
    &:hover {
      color: white;
      border-color: white;
    }
  }
  
  .price {
    color: #c8c8c8;
    font-family: Courier;
    position: relative;
    top: 1px;
    left: 6px;
    font-size: 14px;
  }
}

              
            
!

JS

              
                const DEFAULT_CANDLE_COUNT = 80;
const DEFAULT_CANDLE_INTERVAL = 300000;
const DEFAULT_PRODUCT = "LTC-USD";

const FEED_URL = "wss://ws-feed.gdax.com";
const HISTORY_API = "https://api.gdax.com/products/";

let _ws = null;
let _interval = null;

Vue.filter("price", function (value, product) {
  let unit = "usd";

  if (product) {
    unit = product.split("-")[1].toLowerCase();
  }

  if (unit === "usd") {
    return `$${parseFloat(Math.round(value * 100) / 100).toFixed(2)}`;
  } else {
    return `${value}`;
  }
});

async function getOldCandles(product, interval) {
  return new Promise((resolve, reject) => {
    $.getJSON(
      `${HISTORY_API}/${product}/candles?granularity=${interval / 1000}`,
      function (response) {
        response = response.sort((a, b) => a[0] - b[0]);
        for (var i = 1; i < response.length; i++) {
          response[i][3] = response[i - 1][4];
        }
        const candles = response.map((candle) => ({
          open: candle[3],
          close: candle[4],
          min: candle[1],
          max: candle[2]
        }));
        resolve(candles);
      }
    );
  });
}

const ticker = new Vue({
  el: "#ticker",
  data: {
    product: DEFAULT_PRODUCT,
    candles: [],
    candleCount: DEFAULT_CANDLE_COUNT,
    current: {
      open: 0,
      close: 0,
      min: Infinity,
      max: 0
    },
    interval: DEFAULT_CANDLE_INTERVAL
  },
  computed: {
    displayCandles: function () {
      if (this.candles.length > this.candleCount) {
        return this.candles.slice(
          Math.max(this.candles.length - this.candleCount, 1)
        );
      } else {
        return this.candles;
      }
    },
    displayBoundsCandles: function () {
      if (this.candles.length > this.candleCount * 2) {
        return this.candles.slice(
          Math.max(this.candles.length - this.candleCount * 2, 1)
        );
      } else {
        return this.candles;
      }
    },
    displayMax: function () {
      return Math.max.apply(null, [
        ...this.displayBoundsCandles.map((v) => v.max),
        this.current.max
      ]);
    },
    displayMin: function () {
      return Math.min.apply(null, [
        ...this.displayBoundsCandles.map((v) => v.min),
        this.current.min
      ]);
    },
    labels: function () {
      const min = this.displayMin;
      const max = this.displayMax;
      const diff = max - min;

      if (diff === 0) {
        return [];
      }

      const step = diff / 5;

      var arr = [];

      for (var i = 0; i <= 5 + 1; i++) {
        let val = min + i * step;
        val = parseFloat(Math.round(val * 100) / 100).toFixed(2);
        arr.push(val);
      }

      arr = arr.filter((item, i) => arr.indexOf(item) === i);

      return arr;
    }
  },
  mounted: function () {
    this.init();
  },
  watch: {
    product: function () {
      this.init();
    },
    interval: function () {
      this.init();
    }
  },
  methods: {
    init: async function () {
      let product = this.product;

      this.candles.splice(0);
      this.current.open = 0;
      this.current.close = 0;
      this.current.min = Infinity;
      this.current.max = 0;

      let candles;

      if (this.interval >= 10000) {
        candles = await getOldCandles(this.product, this.interval);
        this.current.open = candles[candles.length - 1].close;
        this.current.close = candles[candles.length - 1].close;
      } else {
        candles = [];
      }

      this.candles = candles;

      if (_ws) {
        _ws.close();
      }

      _ws = new WebSocket(FEED_URL);
      _ws.onopen = () => {
        _ws.send(
          JSON.stringify({
            type: "subscribe",
            product_ids: [this.product],
            channels: [
              "ticker",
              {
                name: "ticker",
                product_ids: [this.product]
              }
            ]
          })
        );
      };

      _ws.onmessage = (evt) => {
        const response = JSON.parse(evt.data);
        const price = {
          // sequence: response.sequence,
          // time: new Date(response.time),
          value: parseFloat(response.price)
        };
        if (price.value) ticker.add(price, product);
      };

      if (_interval) {
        clearInterval(_interval);
      }

      _interval = setInterval(() => {
        const historicVal = {
          open: this.current.open,
          close: this.current.close,
          min: this.current.min,
          max: this.current.max
        };

        this.candles.push(historicVal);
        this.current.open = historicVal.close;
        this.current.close = historicVal.close;
        this.current.min = Infinity;
        this.current.max = 0;
      }, this.interval);
    },
    add: function (price, product) {
      if (product !== this.product) {
        return;
      }

      this.current.close = price.value;
      this.current.open = this.current.open || price.value;
      if (price.value > this.current.max) {
        this.current.max = price.value;
      }
      if (price.value < this.current.min) {
        this.current.min = price.value;
      }
    },
    getCandleHeight: function (open, close) {
      if (open === Infinity || close === Infinity) {
        return 0;
      }
      const diff = Math.abs(open - close);
      const window = this.displayMax - this.displayMin;
      const heightPerc = (diff / window) * 100;
      return `${heightPerc}%`;
    },
    getCandleOffset: function (open, close) {
      if (open === Infinity || close === Infinity) {
        return 0;
      }

      let top = Math.max(open, close);

      if (!close) {
        top = open;
      }

      const window = this.displayMax - this.displayMin;
      const positionPerc = 100 - ((top - this.displayMin) / window) * 100;
      return `${positionPerc}%`;
    }
  }
});

              
            
!
999px

Console