The present study addresses the economic interpretation of stock market volatility. We argue that its character is inherently ambivalent, being considered as an indicator of either information flow or uncertainty.We discriminate between these views by measuring the fraction of price changes that...

In this article the relationship between market return and volatility is examined by applying out-of-sample methodology and ARCH (M) class models in the Tehran Stock Exchange (TSE) and international stock exchanges. The results are inconsistent with portfolio theory implications in NASDAQ, ISE...

In this paper we investigate whether cross-sectional information from local equity markets contained information on devaluation expectations during the Asian crisis. We concentrate on the information content of equity prices as these markets were in general the largest and most liquid at the...

The ad hoc Black-Scholes (AHBS) model is one of the most widely used option valuation models among practitioners models. The main contribution of this study is methodological. We have two main results: (1) we make the empirical observation that typically the call and put sneers are discontinuous...

This paper introduces a new information density indicator to provide a more comprehensive understanding of price reactions to news and, more specifically, to the sources of jumps in financial markets. Our information density indicator, which measures the abnormal amount of noisy “ticker”...

This paper investigates the predictive content of the VIX options trading volume for the future dynamics of the underlying VIX index. Using a novel dataset from the Chicago Board Options Exchange, we calculate the put-call ratio based on the VIX option volume initiated by buyers to open new...

In the framework of small-scale agent-based financial market models, the paper starts out from the concept of structural stochastic volatility, which derives from different noise levels in the demand of fundamentalists and chartists and the time-varying market shares of the two groups. It...

Using well known US stock portfolios that are formed on B/M, long term reversals, momentum, and size, a long sample period (1965-2007), and the comprehensive sentiment index of Baker and Wurgler (2006), which captures the common variation of six commonly used proxies for sentiment, this paper...

Call markets are claimed to aggregate information and facilitate price discovery where continuous markets may fail. Its advantage, however, comes at the cost of immediacy. The impact of the introduction of call auction has not been found uniformly beneficial, possibly due to poor design or due...

Using high-frequency stock price data, we investigate the effect of various stock-specific and market-wide events on intraday volatility dynamics in the Indian market. Modeling intraday volatility dynamics using FFF regressions, we examine the effect of – cross-listing, weekends and holidays,...