高频环境下沪深300股指期货波动测度——基于已实现波动及其改进方法

作为中国唯一上市交易的金融期货产品,沪深300股指期货在资本市场价格发现和风险防范过程中扮演重要角色, 科学准确地测度其收益波动对充分实现股指期货避险功能具有重要理论和现实价值.在日内高频信息环境下分别采用经典已实现波动率、已实现极差波动率和已实现双幂波动率等三类方法对沪深300股指期货的收益波动进行测度,通过样本内预测误差指标对上述 方法的测度性能进行比较. 实证结果表明:沪深300股指期货在上市交易后表现出由剧烈波动 到渐趋平稳的波动特征,已实现波动的改进方法在沪深300股指期货收益波动的测度性能上具有较为明显的优越性.

Measurement of CSI 300 stock index futures volatility under high-frequency environment-Methods based on realized volatility and its modification

As the only publicly launched financial futures contracts of China,CSI 300 stock index futures plays an important role in the process of price discovery and risk prevention of the capital market.The measurement of its return volatility is significantly important to achieve the risk aversion function of stock index futures.Under the intraday high-frequency data environment,the return volatility of Chinese CSI 300 stock index futures was measured by realized volatility methods including classical realized vol...