The Symbol class contains details for a particular ticker symbol. Symbol is intended to hold information that is specific to this particular symbol. For example, the SymbolInformation may hold the company name which is common. Where the Symbol class will hold things such as the strike price of the options contract which is very specific to this particular symbol.

[SerializableAttribute]
public sealed class Symbol : IComparable<Symbol>, 
	ISerializable

<SerializableAttribute> _
Public NotInheritable Class Symbol _
	Implements IComparable(Of Symbol), ISerializable

[SerializableAttribute]
public ref class Symbol sealed : IComparable<Symbol^>, 
	ISerializable