Published quarterly, this series of books provides betas, up-market betas and down-market betas of common stocks, preferred stocks, and mutual funds. The data for common stocks and preferred stocks are grouped by SIC codes. The data for mutual funds are provided by peer groups. Unlike other reference books that usually include only the average or median betas, these books also include different percentiles to provide the reader with additional information to value companies more precisely. Valuation analysts would find these books helpful when conducting valuation of companies in different industries.