随着金融创新步伐加快,券商将可以发行备兑权证。券商如何进行避险操作来规避风险呢?若按照Black&Scholes理论进行动态连续避险操作,将造成巨大的交易成本。因此,实际中都是采用间断性避险。文章对间断性避险策略进行初步研究。根据限制交易成本的不同方式,主要探讨了三类存在交易成本时的间断性避险策略:固定时点避险策略,区间避险策略以及以效用函数为基础的避险策略,并比较了不同策略的避险效果。最后结合中国市场具体情况研究了不同监管制度对权证避险策略选择的影响。
Assuming transaction costs, the closer continuous rebalancing of the hedge portfolio is approximated, the more expensive it becomes to maintain the hedge, so discrete option hedging is often used in practice. This paper discusses three types of discrete hedging strategies: time - based, move - based and utility - based hedging strategy, and compares their advantage and disadvantage.