The Tadawul All Shares Index, or TASI, is a major stock index tracking the performance of all companies listed on the Saudi Stock Exchange (Tadawul). It was first compiled in 1985 with a base value of 1000. With top Saudi companies within its components, like Riyad Bank and Al Rajhi Bank, the TASI index provides a great view of the Saudi equities market — fast-growing and full of potential.