/// <summary>
        /// Gets the hash code
        /// </summary>
        /// <returns>Hash code</returns>
        public override int GetHashCode()
        {
            unchecked // Overflow is fine, just wrap
            {
                var hashCode = 41;
                // Suitable nullity checks etc, of course :)

                hashCode = hashCode * 59 + QuoteCurrency.GetHashCode();

                hashCode = hashCode * 59 + Kind.GetHashCode();
                if (TickSize != null)
                {
                    hashCode = hashCode * 59 + TickSize.GetHashCode();
                }
                if (ContractSize != null)
                {
                    hashCode = hashCode * 59 + ContractSize.GetHashCode();
                }
                if (IsActive != null)
                {
                    hashCode = hashCode * 59 + IsActive.GetHashCode();
                }

                hashCode = hashCode * 59 + OptionType.GetHashCode();
                if (MinTradeAmount != null)
                {
                    hashCode = hashCode * 59 + MinTradeAmount.GetHashCode();
                }
                if (InstrumentName != null)
                {
                    hashCode = hashCode * 59 + InstrumentName.GetHashCode();
                }

                hashCode = hashCode * 59 + SettlementPeriod.GetHashCode();
                if (Strike != null)
                {
                    hashCode = hashCode * 59 + Strike.GetHashCode();
                }

                hashCode = hashCode * 59 + BaseCurrency.GetHashCode();
                if (CreationTimestamp != null)
                {
                    hashCode = hashCode * 59 + CreationTimestamp.GetHashCode();
                }
                if (ExpirationTimestamp != null)
                {
                    hashCode = hashCode * 59 + ExpirationTimestamp.GetHashCode();
                }
                return(hashCode);
            }
        }
        public override int GetHashCode()
        {
            var hashCode = 1689275518;

            hashCode = hashCode * -1521134295 + Difference.GetHashCode();
            hashCode = hashCode * -1521134295 + IsCurrentPriceIncreasing.GetHashCode();
            hashCode = hashCode * -1521134295 + IsDifferencePositive.GetHashCode();
            hashCode = hashCode * -1521134295 + CurrentPriceBid.GetHashCode();
            hashCode = hashCode * -1521134295 + CurrentPriceAsk.GetHashCode();
            hashCode = hashCode * -1521134295 + EqualityComparer <string> .Default.GetHashCode(CurrentPrice);

            hashCode = hashCode * -1521134295 + TickSize.GetHashCode();
            hashCode = hashCode * -1521134295 + Rounding.GetHashCode();
            return(hashCode);
        }