This paper examines the interaction between short-run return reversals, momentum and idiosyncratic volatility in the Australian market. We confirm that stocks with high idiosyncratic volatility earn low average returns over the next month. Unlike US studies which attribute this negative relation...

We explore the negative relation between idiosyncratic volatility and future stock returns observed by previous researchers. We argue that, based on the observation described in prospect theory, retail investors prefer stocks with a high level of idiosyncratic volatility and are subsequently...

We examine the effects of the short selling ban, imposed by Australian regulators in the wake of the global financial crisis, on trading of financial stocks. Unlike other developed markets, where regulators imposed short-selling restrictions for brief periods of time at the height of the...

The contemporaneous call options volume have a significant strong positive feedback effect on the implied volatility, but the contemporaneous feedback effect of volume on the TARCH volatility is insignificant. The contemporaneous feedback effects from the implied volatility and the TARCH...

This paper investigates the behavior of Australian interest rate futures around the release of major scheduled macroeconomic announcements. The analysis of price volatility, returns, trading activity and bid-ask spreads finds that the adjustment to new information occurs quickly with the...

A key issue in understanding option pricing is the response of option implied volatility to macro-economic announcements. We use high frequency data on ASX SPI 200 Index Options to examine the response of option implied volatility, as well as higher moments of the underlying return distribution,...