累计期权(Knock Out Discount Accumulator 简称:KODA，也被称为Accumulator) 累计期权又称累积期权，英文名称Accumulator，是一种以合约形式买卖资产（股票、外汇或其它商品）的金融···

触碰失效期权(knock-out option)···

A latent option contract that begins to function as a normal option ("knocks in") only once a certain price level is reached before expiration. Technically, t···

触碰生效期权是指只有在标的资产的市价触及确定的水准时期权才生效···

An option with a built in mechanism to expire worthless should a specified price level be exceeded.An exotic option mainly used for commodities and currencies.···