Essential Studio for Xamarin.Forms
Candle Chart & Graph

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:local="clr-namespace:ChartExample"
             xmlns:chart="clr-namespace:Syncfusion.SfChart.XForms;assembly=Syncfusion.SfChart.XForms"
             x:Class="ChartExample.MainPage">

    <ContentPage.BindingContext>
        <local:ViewModel/>
    </ContentPage.BindingContext>

    <chart:SfChart>

        <chart:SfChart.PrimaryAxis>
            <chart:CategoryAxis/>
        </chart:SfChart.PrimaryAxis>

        <chart:SfChart.SecondaryAxis>
            <chart:NumericalAxis/>
        </chart:SfChart.SecondaryAxis>

        <chart:CandleSeries ItemsSource="{Binding Data}" XBindingPath="Year" High="High" Low="Low" Open="Open" Close="Close"/>

    </chart:SfChart>

</ContentPage>

public class Model
{
    public string Year { get; set; }

    public double High { get; set; }

    public double Low { get; set; }

    public double Open { get; set; }

    public double Close { get; set; }

    public Model(string xValue, double open, double high, double low, double close)
    {
        Year = xValue;
        Open = open;
        High = high;
        Low = low;
        Close = close;
    }
}

public class ViewModel
{
    public ObservableCollection<Model> Data { get; set; }

    public ViewModel()
    {
        Data = new ObservableCollection<Model>()
        {
            new Model("2010", 873.8, 878.85, 855.5, 860.5),
            new Model("2011", 861, 868.4, 835.2, 843.45),
            new Model("2012", 846.15, 853, 838.5, 847.5),
            new Model("2013", 846, 860.75, 841, 855),
            new Model("2014", 841, 845, 827.85, 838.65)
        };
    }
}