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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

預測S&P500指數實現波動度與VIX- 探討VIX、VIX選擇權與VVIX之資訊內涵 / The S&P 500 Index Realized Volatility and VIX Forecasting - The Information Content of VIX, VIX Options and VVIX

黃之澔 Unknown Date (has links)
波動度對於金融市場影響甚多,同時為金融資產定價的重要參數以及市場穩 定度的衡量指標,尤其在金融危機發生時,波動度指數的驟升反映資產價格震盪。 本篇論文嘗試捕捉S&P500 指數實現波動度與VIX變動率未來之動態,並將VIX、 VIX 選擇權與VVIX 納入預測模型中,探討其資訊內涵。透過研究S&P500 指數 實現波動度,能夠預測S&P500 指數未來之波動度與報酬,除了能夠觀察市場變 動,亦能使未來選擇權定價更為準確;而藉由模型預測VIX,能夠藉由VIX 選 擇權或VIX 期貨,提供避險或投資之依據。文章採用2006 年至2011 年之S&P500 指數、VIX、VIX 選擇權與VVIX 資料。 在 S&P500 指數之實現波動度預測當中,本篇論文的模型改良自先前文獻, 結合實現波動度、隱含波動度與S&P500 指數選擇權之風險中立偏態,所構成之 異質自我回歸模型(HAR-RV-IV-SK model)。論文額外加入VIX 變動率以及VIX指數選擇權之風險中立偏態作為模型因子,預測未來S&P500 指數實現波動度。 研究結果表示,加入VIX 變動率作為S&P500 指數實現波動度預測模型變數後, 可增加S&P500 指數實現波動度預測模型之準確性。 在 VIX 變動率預測模型之中,論文採用動態轉換模型,作為高低波動度之 下,區分預測模型的方法。以VIX 過去的變動率、VIX 選擇權之風險中立動差 以及VIX 之波動度指數(VVIX)作為變數,預測未來VIX 變動率。結果顯示動態 轉換模型能夠提升VIX 預測模型的解釋能力,並且在動態轉換模型下,VVIX 與 VIX 選擇權之風險中立動差,對於VIX 預測具有相當之資訊隱涵於其中。 / This paper tries to capture the future dynamic of S&P 500 index realized volatility and VIX. We add the VIX change rate and the risk neutral skewness of VIX options into the Heterogeneous Autoregressive model of Realized Volatility, Implied Volatility and Skewness (HAR-RV-IV-SK) model to forecast the S&P 500 realized volatility. Also, this paper uses the regime switching model and joins the VIX, risk neutral moments of VIX options and VVIX variables to raise the explanatory ability in the VIX forecasting. The result shows that the VIX change rate has additional information on the S&P 500 realized volatility. By using the regime switching model, the VVIX and the risk neutral moments of VIX options variables have information contents in VIX forecasting. These models can be used for hedging or investment purposes.

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