How are VIX and Stock Index ETF Related?
As stock market indexes are not tradeable, the importance and trading volume of Exchange Traded Funds (ETFs) cannot be understated. ETFs track and attempt to replicate the performance of a specific index. Numerous studies have demonstrated a strong relationship between the S&P500 Composite Index and the Volatility Index (VIX), but few empirical studies have focused on the relationship between VIX and ETF returns. The purpose of the paper is to investigate whether VIX returns affect ETF returns by using vector autoregressive (VAR) models to determine whether daily VIX returns with different moving average processes affect ETF returns. The ARCH-LM test shows conditional heteroskedasticity in the estimation of ETF returns, so that the diagonal BEKK model is used to accommodate multivariate conditional heteroskedasticity in the VAR estimates of ETF returns. Daily data on ETF returns that follow different stock indexes in the USA and Europe are used in the empirical analysis. The estimates show that daily VIX returns have: (1) significant negative effects on European ETF returns in the short run; (2) stronger significant effects on single market ETF returns than on European ETF returns; and (3) lower impacts on the European ETF returns than on S&P500 returns.
|Keywords||Stock market indexes, Exchange Traded Funds, Volatility Index (VIX), Vector autoregressions, moving average processes, conditional heteroskedasticity, diagonal BEKK|
|JEL||Time-Series Models; Dynamic Quantile Regressions (jel C32), Financial Econometrics (jel C58), Asset Pricing (jel G12), International Financial Markets (jel G15)|
|Series||Econometric Institute Research Papers|
|Note||For financial support, the first author wishes to thank the National Science Council, Taiwan, and the third author is grateful to the National Science Council, Taiwan and the Australian Research Council.|
Chang, C-L, Hsieh, T-L, & McAleer, M.J. (2016). How are VIX and Stock Index ETF Related? (No. EI2016-07). Econometric Institute Research Papers. Retrieved from http://hdl.handle.net/1765/79913