甚麼是Options Trading?

Option Trading is quite a complicated product, but here I explain kind of plain vanilla option which is the easiest type of option.
To buy a call option means you have bought the right to buy certain kind of product/commodity (more technical term is underlying product) at an agreed price and expiry date. You pay premium for buying a call. You dont need to exercise the option when the market is against you.
To sell a call option means you have sold the right to somebody and that you have an obligation to buy the product/commodity at the agreed price and expiry date even though the market price is against you. You receive premium for selling a call.
To buy a put option means you have bought the right to sell certain kind of product at an agreed price and expirty date. You pay premium for buying a put. You dont need to exercise the option when the market price is against you.
To sell a put options means you have sold the right to somebody and that you have an obligation to sell the product at the agreed price and expiry date if the market price is against you. You receive premium for selling a put.
The one which pays you the most premium when you sell a call/put is an good institution to be selected for doing this kind of transaction. And of course the one which collects less premium from you when you buy a call/put is also a good instituion.

恆指 Options 是恆生指數的衍生工具，
Call 是睇好恆指是上升盤
Put 是睇淡恆指是下跌盤
正常情況：
恆指升 Call 升 Put 跌
恆指跌 Put 升 Call 跌
理論和買窩輪無分別
在有 Options 銀行或證券行開戶口及請問有關職員如何運作網上賣買系統