Option market activity increases by more than 10 percent in the four days before quarterly earnings announcements. We show that the direction of this pre-announcement trading foreshadows subsequent earnings news. Specifically, we find option traders initiate a greater proportion of long (short)...

This research aims to revisit the price discovery relationship between spot and futures prices of Indian equity index S&P CNX Nifty, using neural network approach. This study uses minute-by-minute prices of 167 trading days ranging from January, 2015 to August, 2015 to gain fresh insights on...

In perfectly frictionless and rational markets, spot markets and futures markets should simultaneously reflect new information. However, due to market imperfections, one of these markets may reflect information faster than the other and therefore may lead to the other. This study examines the...

China has become the world's biggest consumer of gold in recent years. After only several years of operation, the Chinese gold futures market is now one of the largest globally. This paper studies the price discovery process for the Chinese gold markets. Since the financial crisis in 2007, gold...

This study examines the effect of option volume relative to stock volume (O/S) on market response to earnings surprises. The market reaction per unit of earnings surprise is lower for firms that have high O/S prior to earnings announcement than for firms with low O/S prior to earnings...

This paper finds that low-price stocks' earnings announcement returns are significantly lower than those of high-price stocks. In contrast, we do not find such underperformance outside announcement periods. This evidence suggests that the cognitive bias induced by low share prices are corrected...

I analyze the price discovery process of gold by using high-frequency price series of three commonly traded gold investment products and find that first: modern markets disseminate new gold pricing information in less than one hundred milliseconds. My second finding is that gold future contracts...

This study examines the relation between aggregate volatility risk and the cross-section of stock returns in Australia. We use a stock's sensitivity to innovations in the ASX200 implied volatility (VIX) as a proxy for aggregate volatility risk. Consistent with theoretical predictions, aggregate...

This paper shows that option trading does not reduce overpricing in the underlying stock market. A popular view in the literature is that options lower short selling cost, therefore, they allow stock prices to better incorporate negative information and opinions. Testing such a hypothesis is...