class Program
    {
        static void Main(string[] args)
        {
        var url = "http://www.google.com/finance/historical?q=MSFT&output=csv";
        var request = WebRequest.Create(url);
        var response = request.GetResponse();
        var dataStream = response.GetResponseStream();
        var reader = new StreamReader(dataStream);
        var csv = await reader.ReadToEndAsync();
        reader.Close();
        dataStream.Close();
        response.Close();
        var prices = csv.Split('\n').Skip(1)
                        .Select(line => line.Split(','))
                        .Where(values => values.Length >= 5)
                        .Select(values => new {
                            date = values[0],
                            price = float.Parse(values[4])
                        });

        foreach (var p in prices.Take(10))
            Console.WriteLine(p);
        }
    }