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 …

This study suggests a novel approach for decomposing net options demands into the
options order imbalances with and without volatility risk. By analyzing a high-frequency …

This study examines whether the demand for options, as measured by the net buying
pressure of index options, explains the implied volatility structure created by options prices …

Option listing increases informed and uninformed trading by 12.4% and 23.9%, respectively,
in the USA between 2001 and 2010, hence reducing relative information risk. We establish …

This paper studies the information content of convertible bond trading in Chinese market.
We construct a measure of the convertible bond order imbalance. The analysis shows that …

By analyzing intraday volatility information trading according to the demand for options, we
determine the types of investors that are informed about future spot market volatility and …

This study reexamines the influence of different investor types' net options demand on the
KOSPI200 options-implied volatility dynamics. We extend Bollen and Whaley (2004) by …

This paper provides a guide to high-frequency option trade and quote data disseminated by
the Options Price Reporting Authority (OPRA). We present a comprehensive overview of the …

This paper studies how to retrieve aggregate information from the trading volume of Taiwan
composite stock index options (TXO) with better quality by modifying the two option …

This paper studies the presence of informed trading in Taiwan stock index options (TXO)
and analyzes the informational role of foreign institutions in incorporating information into …