【正文】
? Futures generally refer to futures contracts, formulated uniformly by futures exchange, to deliver a certain amount of standardization of the subject matter of the contract at a certain future time and place. This subject matter, also called underlying assets, is the corresponding spot. Transactions期權(quán)交易 ? 期權(quán) ( Options)是一種選擇權(quán),期權(quán)的 買方 向賣方 支付一定數(shù)額的 權(quán)利金 后,就獲得這種 權(quán)利 ,即擁有在一定時間內(nèi)以一定的 價格 ( 執(zhí)行價格 )出售或購買一定數(shù)量的標(biāo)的物(實物商品、證券或 期貨合約 )的權(quán)利 (即期權(quán)交易)。 ? International arbitrage refers to a k