Complex sentence: The BankMuscat Brokerage is the leading brokerage firm in Oman, with a 13% market share in 2010 based on volume traded, ranking them as the number 1 brokerage company on the Muscat Securities Market (MSM) for 9 out of the last 10 years.
Split into simpler sentences: The BankMuscat Brokerage is the leading Stockbroker in Oman, with a 13% Market Share in 2010 based on Volume traded. The unit has been the Number 1 Brokerage Company on the Muscat Securities Market (MSM) for 9 years out of the last 10 years.