The Saudi Stock Exchange, also known as the Tadawul, is the sole stock exchange of the Kingdom of Saudi Arabia. Its operations are supervised by the Capital Market Authority of Saudi Arabia (CMA). The exchange is headquartered in Riyadh, the country's capital and most populous city. Electronic trading is conducted through the X-Stream INET trading system, which is the most widely used marketplace trading system in the world and owned by Nasdaq. The exchange lists 136 companies and has a market cap of $ 515 billion. It also houses bonds, mutual funds and ETFs.
Among those listings are well-known and actively traded companies such as the Al Rajhi Bank, the Riyad Bank, SABIC, the Kingdom Holding Company and the Saudi Telecom Company. The benchmark index is the Tadawul All-Share Index (TASI). It tracks the performance of all the listed companies, while excluding trades with smaller volume. The TASI is generally recognized as one of the most prominent stock market indices in the Middle-Eastern region. The Saudi Stock Exchange also manages other indices, representing various sectors of the economy, such as the Energy Index (TENI), the Materials Index (TMTI) and the Utilities Index (TUTI).