Laura Tanner, CFP with SAS Advisors, LLC in San Francisco is a former research scientist with a PhD in Neurobiology. In an article published on myStockOptions.com she tells how she learned the hard way regarding not diversifying her concentrated stock and option position with a previous employer.
The moral for the story is that individuals receiving company stock and options need an easy way to calculate their level of concentration and to evaluate the risk / reward tradeoff of their holdings. This video on Concentration Concepts explains how to do this using StockOpter.com.