For example, SGX Nikkei index option. It is a futures option, European style, physical delivery. Upon exercise, it'll result in a position of the underlying futures contract. But the futures contract has the same expiry date as the option contract and is cash settlement. Does it mean that I can simply treat that futures option as a regular index option (cash settled, European style)?? And don't have to worry about the physical delivery part as the futures contract has the same expiry date and is also cash settled??
In that example yes I think you are correct but that's not the normal case. Usually a future will appear/net-off on your account after expiry of the option because the future will not expire at the same time. Is there any trading in SGX NK225 options?