Futures_Spread_OptionFutures Spread Option is a Tradable that represents a Multi Asset Option that only differs from a Spread Option in that the payoff at exercise depends on the difference between the futures prices at that time of two futures contracts rather than two underlying assets.
It follows that only cash settlement is possible since generally no physical assets exist the price of which equal these futures prices.
Due to this, the Futures Spread Option is considered "more exotic" than the corresponding Spread Option
The following features are currently not supported by QuantLib:
Barriers, discrete dividends/storage costs.
The pricing methodology is specified in Model[Multi Asset Option]
The following QuantLib issues have been identified: