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  • 學位論文

投資人情緒對選擇權波動度預測股價指數能力之影響

The Effects of Investors’ Sentiment on the Forecasting Ability of the Taiwan Index Option

指導教授 : 朱香蕙

摘要


本文探討2007年1月1日至2018年7月31日期間五個台指選擇權波動性偏態指標對大台指報酬之間的關係。本研究將樣本期間分為全樣本和投資人高情緒期間、正常情緒期間及低情緒期間三個子樣本,來檢視波動性偏態指標與大台指報酬的關係。實證結果顯示,在投資人不同情緒期間下,大台指數的變動率與波動性偏態指標的關聯性會有所差異。此外,RVIV指標在全樣本、正常情緒期間及低情緒期間有最高的正報酬比例。最後,分析單一波動性偏態指標及同時考慮三個偏態指標下之投資策略表現,發現單一波動性偏態指標及多個偏態指標對於大台指預測之一日平均報酬、五日及十日累積報酬皆有不錯的表現。

並列摘要


This paper investigates the relationship between TAIEX return and the option volatility skew measures by using data for the spot and option markets in Taiwan from January 2007 to July 2018. We divide our sample into four groups, inclusive of all sample and subsamples of high sentiment, normal sentiment, low sentiment. The volatility skew measures significantly correlate with TAIEX return, however, vary with the state of investor sentiment. Comparing across five option volatility skew measures, we empirically find that the RVIV plays a dominant role between the spot and option market. Further evidences indicate that five option volatility skew trading strategies are profitable for the Taiwan market after all sample and three sub-samples are examined to confirm the robustness of the results.

參考文獻


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