User:Danielg3000/sandbox

The Ginsburg ratio is a measure of the risk adjusted diversification of a portfolio or mutual fund of stocks. It is named after its creator, Daniel Ginsburg. It can be used to determine if a portfolio's diversification, or number of stocks, accounting for it's risk is greater than or less than the risk adjusted diversification of the average portfolio.

Formula Ginsburg's ratio requires the following inputs:
 * Bulleted list item N, the number of stocks in the portfolio
 * Bulleted list item σ, the standard deviation of the portfolio

The ratio is then defined as: "G"=((N/σ)/90.6 - 1)/5.13