A beta score calculation that is used to gauge the volatility of a portfolio based on all the investments included in the portfolio and not just specific stocks. The beta score is formulated by looking at the market as a whole and then calculating a numerical value to show the volatility level of the investment portfolio. A score of 1 indicates that the investment is following the same path as the market. If the score is over 1, this indicates that the portfolio will advance or decline differently from current market conditions.