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Full-Text Articles in Business

What Do Options Have To Do With It?: Inclusion Of Options Market Indicators In Bid-Ask Spread Decomposition, David Michayluk, Laurie Prather, Li-Anne Woo, Henry Yip Jul 2014

What Do Options Have To Do With It?: Inclusion Of Options Market Indicators In Bid-Ask Spread Decomposition, David Michayluk, Laurie Prather, Li-Anne Woo, Henry Yip

Li-Anne Woo

This paper develops a cross-market model to extend Huang and Stoll (1997) by utilizing information from trade flows in the options market. Empirical tests reveal a significant increase in the estimated adverse information component, which stays consistent irrespective of the degree of option leverage. Further, intraday variation in stock bid-ask spread components is affected by the stock trade size and the extent of imbalance in information-based option trades. Including the options market information in decomposition of the stock bid-ask spread enhances the quality of its estimation.


Does Option Trading Convey Stock Price Information?, Jianfeng Hu Mar 2014

Does Option Trading Convey Stock Price Information?, Jianfeng Hu

Research Collection Lee Kong Chian School Of Business

After executing option orders, options market makers turn to the stock market to hedge away the underlying stock exposure. As a result, the stock exposure imbalance in option transactions translates into an imbalance in stock transactions. This paper decomposes the total stock order imbalance into an imbalance induced by option transactions and an imbalance independent of options. The analysis shows that the option-induced imbalance significantly predicts future stock returns in the cross section, but the imbalance independent of options only has a transitory price impact. Further investigation suggests that options order flow contains important information about the underlying stock value.


Releasing Information In Xbrl: Does It Improve Information Asymmetry For Early U.S. Adopters?, Marshall A. Geiger, David S. North, Daniel D. Selby Jan 2014

Releasing Information In Xbrl: Does It Improve Information Asymmetry For Early U.S. Adopters?, Marshall A. Geiger, David S. North, Daniel D. Selby

Accounting Faculty Publications

Information released in XBRL is intended to improve the quality and accessibility of SEC filings, leading to less information asymmetry in the equity market. Research findings on the effects of XBRL on information asymmetry in the US., however, are mixed. Kim et al. (2012) reports that XBRL reduces information asymmetry while Blankespoor et al. (2012) reports that XBRL increases information asymmetry. In contrast to these prior studies, we report that the answer as to whether XBRL affects information asymmetry is matter of firm size. In this study we examine shifts in two measures of information asymmetry for early adopters of …