//        private decimal _bestBid;
        //        private decimal _bestAsk;

        public InstrumentInfo(Instrument instrument)
        {
            _instrumentId = instrument.Id;
        }
 ///<summary>
 /// Determines if this instrument is the same as another one.
 ///</summary>
 ///<param name="other">An instrument to compare this instance to</param>
 ///<returns>true if the given instrument is the same as this instrument</returns>
 public bool Equals(Instrument other)
 {
     if (ReferenceEquals(null, other)) return false;
     if (ReferenceEquals(this, other)) return true;
     return other._id == _id && Equals(other._name, _name) && Equals(other._underlying, _underlying) && Equals(other._calendar, _calendar) && Equals(other._risk, _risk) && Equals(other._orderBook, _orderBook) && Equals(other._contract, _contract) && Equals(other._commercial, _commercial);
 }