The efficiency of the buy-write strategy: Evidence from Australia

We examine the performance of the buy-write option strategy (BWS) on the Australian Stock Exchange and analyse whether such an investment opportunity violates the efficient market hypothesis on the basis of its risk and returns. This study investigates the relationship between buy-write portfolios returns and past trading volume and other fundamental financial factors including dividend yield, firm size, book to market ratio, earnings per share (EPS), price earnings ratio and value stocks within these portfolios. We also test the profitability of the buy-write strategy during bull and bear markets. Consistent with the literature, it is observed that BWS offers superior risk adjusted returns for low levels of out-of-moneyness and contrary evidence is observed for deeper out-of-money portfolios. Consistent with a preference for options with a maturity of around 3 months in Australia, this research shows that quarterly rebalancing periods offer better returns for the BWS.     

The Profitability of Option‐Based Contrarian Strategies: An Empirical Analysis

Short‐selling restrictions limit investors' opportunities to profit from contrarian strategies in equity markets. We examine the proposition that incorporating options into contrarian strategies constitute a viable alternative to investors when short‐selling restrictions are in place. In particular, we combine equities with the call and put options traded on the Australian Stock Exchange to investigate the profitability of contrarian strategies in the hybrid market and options market alone. We assess the practical issues in the execution of these approaches, including testing for the effects of limited liquidity and transaction costs. We also investigate how fundamental factors (such as dividend yield, firm size, book‐to‐market ratio, earnings per share, price‐earnings ratio, value stocks, and market conditions) affect contrarian portfolios. The results show that employing options can enhance the profitability of contrarian strategies under certain market conditions.