原油期货隐马尔可夫状态统计套利
文章 arXiv papers · 作者: Viviana Fanelli et al.
总结
本研究考察布伦特、WTI和上海原油期货的配对交易扩展。研究指出,三个价格序列存在协整关系,并将由此形成的价差建模为均值回归过程,其状态由隐马尔可夫链控制。研究使用基于在线滤波的参数估计来实施并测试统计套利策略。
报告称,涉及上海原油期货的策略在不同期间以及保守的交易成本假设下均有盈利。分析中,使用传统布伦特、WTI和迪拜期货的策略未发现盈利机会。这些发现仅适用于本研究的历史数据;摘录未说明样本日期、执行假设或样本外验证详情。因此,研究结果提示可考察上海原油作为相对价值工具,但并不能证明该结果会持续或适用于其他市场环境。
核心观点
- 本研究通过价差对存在协整关系的原油期货价格进行建模。
- 价差被表示为均值回归过程,其状态遵循隐马尔可夫链。
- 在线滤波用于估计模型参数,以构建并测试统计套利策略。
- 报告称,涉及上海原油期货的策略在不同期间和保守交易成本下均有盈利。
- 测试中的传统原油期货组合未产生盈利机会,摘录也未证明未来表现。
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全文
# A hidden Markov model for statistical arbitrage in international crude oil futures markets # A hidden Markov model for statistical arbitrage in international crude oil futures markets In this work, we study statistical arbitrage strategies in international crude oil futures markets. We analyse strategies that extend classical pairs trading strategies, considering the two benchmark crude oil futures (Brent and WTI) together with the newly introduced Shanghai crude oil futures. We document that the time series of these three futures prices are cointegrated and we model the resulting cointegration spread by a mean-reverting regime-switching process modulated by a hidden Markov chain. By relying on our stochastic model and applying online filter-based parameter estimators, we implement and test a number of statistical arbitrage strategies. Our analysis reveals that statistical arbitrage strategies involving the Shanghai crude oil futures are profitable even under conservative levels of transaction costs and over different time periods. On the contrary, statistical arbitrage strategies involving the three traditional crude oil futures (Brent, WTI, Dubai) do not yield profitable investment opportunities. Our findings suggest that the Shanghai futures, which has already become the benchmark for the Chinese domestic crude oil market, can be a valuable asset for international investors.
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