摘要：作者对实际使用的对冲模型提出研究，在本文中建立了一个在指数.指数期货.指数期权上的进行无套利对冲的前沿模型，揭开了对冲基金使用数量模型神秘的面纱。通过比较从市场指数和指数期货中估计得出的风险中性密度函数与从隐含在指数期权市场的风险中性密度函数，发现对冲机会，设计对冲交易策略。我们这里采用的估计方法为非参数方法,是对BS模型的拓展。 Abstract: In this paper, the authors make a research on the field of hedge model, after the investigation of some hedge funds in U.S. ,we establish a frontier no-arbitrage hedge model for index.index futures and index options. We compare the risk neutral density estimated from cross section of index market to the risk neutral density inferred from the time series of index and index future markets. The methods we used are nonparametric method and hypothesis test. We can find the arbitrage opportunity and design the hedge trading strategy.