Furthermore several international mutual fund markets were reviewed for the sole purpose of learning and adopting from the performance surveys of several countries, such as developed markets like those of the US, UK, Hong Kong and Singapore, which are active participants of industry associations of investment professionals in the promotion and evaluation of mutual funds. The industry practices of the Emerging markets, such as Pakistan, Malaysia and India, depict the fact that practically all industry surveys do not check against actual deviations from the declared investment policies. The Data and Methodology developed was to facilitate the calculation of Risk-adjusted returns and excess returns, based on the Sharpe’s (1996) Ratio method, of mutual funds that are registered for sale in Saudi Arabia. Whereas the dozen benchmark’s provided in the study, eight being internationally practiced by global fund managers and four being Saudi benchmarks that cover local investment styles, aid investors in terms of not only easy replication of performance and investment styles but also effective imitation of portfolio indices. Furthermore these benchmarks are used to control the returns generated by Saudi mutual funds as well as to estimate the excess returns of each investment style. This shows prospective investors how mutual fund performance in the Saudi would benefit the market in terms of efficient risk- return balance in ordinary investments.