Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Biometrika is primarily a journal of statistics in which emphasis is placed on papers containing original theoretical contributions of direct or potential value in applications. From time to time, ...

Typically, traders will use the middle price between an options bid and ask to think about a fair value. Problems occur using this mid price method: when markets are wide, when a bid and ask are ...

The Black-Scholes model enables investors to estimate the values of their options contracts more accurately. Read on to learn more about how this is performed.

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Robert Kelly is managing director of XTS Energy LLC ...

In this paper we produce a table of critical values of Mood's test statistic which may be used in the distribution-free comparison of the dispersions of two independent samples. As far as we know the ...