<template>
  <div>
    <div id="chart">
      <apexchart
        type="area"
        height="350"
        :options="chartOptions"
        :series="series"
      ></apexchart>
    </div>
  </div>
</template>

<script>
import VueApexCharts from 'vue-apexcharts'

export default {
  components: {
    apexchart: VueApexCharts,
  },
  data: function () {
    return {
      series: [
        {
          name: 'Net Cash Flow',
          data: [18, -24, 41, -33, 12, 58, -47, 29, -18, 63, 22, -39],
        },
      ],
      chartOptions: {
        chart: {
          height: 350,
          type: 'area',
          zoom: {
            enabled: false,
          },
        },
        dataLabels: {
          enabled: false,
        },
        title: {
          text: 'Monthly Net Cash Flow',
          align: 'left',
        },
        subtitle: {
          text: 'Months in deficit draw in a different color',
          align: 'left',
        },
        yaxis: {
          labels: {
            formatter: function (val) {
              return '$' + val + 'k'
            },
          },
        },
        xaxis: {
          categories: [
            'Jan',
            'Feb',
            'Mar',
            'Apr',
            'May',
            'Jun',
            'Jul',
            'Aug',
            'Sep',
            'Oct',
            'Nov',
            'Dec',
          ],
        },
        stroke: {
          width: 0,
        },
        plotOptions: {
          line: {
            colors: {
              threshold: 0,
              colorAboveThreshold: '#00E396',
              colorBelowThreshold: '#FF4560',
            },
          },
        },
      },
    }
  },
}
</script>

<style>
#chart {
  max-width: 650px;
  margin: 35px auto;
}
</style>
Negative Values - Vue Area Charts | ApexCharts.js | ApexCharts.js