One of the major challenges faced by any stock exchange is maintaining a reliable and accurate margining system. This includes the complicated task of calculating margin requirements for illiquid options, which rarely trade, but are still exposed to the risk of the underlying stock. EquiLib, FEA’s equity derivative pricing programming library is used by one of the world’s major stock exchanges to estimate option prices for less liquid options. Equilib is also available as @EQUITY, an Excel add-in, which provides a fast, reliable tool for extracting implied volatilities from liquid options. These volatilities are then used to calculate prices of less liquid options on the same underlying stock. In addition to @EQUITY, other FEA products that may be of interest to equity traders are: VaRworks MakeVC Click on a product name for a detailed description and a list of features. We would be happy to provide a personal demonstration of any product, or feel free to contact us to talk with one of our staff directly.