public class Stock
{
   public string StockSymbol;
   public string StockName;
   public double Price;
   public StockHistory[] History =
         new StockHistory[2];

   private string strBroker;
   public string Broker
   {
      get
      {
         return strBroker;
      }
      set
      {
         strBroker = value;
      }
   }
}

public class StockHistory
{
   public DateTime TradeDate;
   public double Price;
}
