Prior research uses the basic one-period European call-option pricing model to compute default measures for individual firms and concludes that both the size and book-to-market effects are related to default risk. For example, small firms earn higher return than big firms only if they have...

Prior research uses the basic one-period European call-option pricing model to compute default measures for individual firms and concludes that both the size and book-to-market effects are related to default risk. For example, small firms earn higher return than big firms only if they have...

Prior research uses the basic one-period European call-option pricing model to compute default measures for individual firms and concludes that both the size and book-to-market effects are related to default risk. For example, small firms earn higher return than big firms only if they have...

Using intraday trades and quotes data, we study the stock options market before, during, and after the market events of May 6, 2010. Focusing on the S&P 500 and S&P 100 stock options, we explore if the options market provided any discernible signals that forewarned the extreme volatility on that...

Stocks with large increases in call implied volatilities over the previous month tend to have high future returns while stocks with large increases in put implied volatilities over the previous month tend to have low future returns. Sorting stocks ranked into decile portfolios by past call...

Building a recombining binomial tree consistent with the observed volatility smile is trickier than you might have thought. Implied binomial (or multinomial) trees are constructed to enable pricing of derivative securities in consistency with the existing market. We introduce important...

The Securities and Exchange Commission's 2008 emergency order introduced a shorting ban of some 800 financials traded in the US. This paper provides an empirical analysis of the options market around the ban period. Using transaction level data from OPRA (The Options Price Reporting Authority),...