Tadawul TASI: Explanation of the Saudi Market Index and a Guide to Performance

Tadawul TASI stands for the Tadawul All Share Index, the main benchmark index of the Saudi financial market. TASI began in the early 1990s as a tool to measure market performance and today reflects the performance of all companies listed on the main market. The index is calculated using the free-float market capitalization method, which aggregates the market values of shares actually available for trading (number of free-float shares × share price) and compares them to the index base. When the prices of major companies rise or the number of listed companies increases, the index goes up, and vice versa. TASI serves as a pivotal reference for analysts, investors, and investment funds, and is a tool for monitoring the overall health of the Saudi economy. This mechanism allows real-time tracking of market changes, with continuous updates via official platforms such as Tadawul, providing investors and analysts with transparent and immediate insights into market movements. The index has evolved to reflect not only price movements but also market dynamics and the diversity of listed sectors.

The Tadawul TASI index forms the backbone for measuring the performance of the Saudi financial market and is an official benchmark recognized by the Capital Market Authority (CMA). The index reveals general market trends and helps evaluate the success of economic policies, such as fiscal reforms or Vision 2030 projects. TASI is also used as a reference by local and global investment funds to assess the Saudi market’s performance compared to regional and international markets, and it is relied upon to determine the relative weighting of stocks in investor portfolios. Index movements indirectly affect both local and international investor confidence and influence appetite for new IPOs or expansion in foreign investment. For these reasons, financial institutions and economic media closely monitor the index, considering it a strategic tool for tracking economic and financial developments in the Kingdom.

The Tadawul TASI index is calculated based on the free-float market capitalization of all companies listed on the main market. The closing price of each free-float share is multiplied by the number of shares available for trading, and this sum is divided by the index’s base value (dating back to the index’s historical starting point). This method gives greater weight to large companies, meaning that the movements of high market-cap stocks (such as Saudi Aramco or Al Rajhi Bank) have a more significant impact on the index than smaller companies. Analytically, TASI provides a comprehensive picture of the market’s average overall performance, allowing tracking of earnings growth rates, price-to-earnings (P/E) ratios, and dividend yields. It is also used to evaluate passive investment strategies, such as investing through exchange-traded funds (ETFs) that track the index.

Tadawul TASI includes more than 190 listed companies across 21 different economic sectors. These sectors include banking, energy, basic materials, consumer goods, healthcare, telecommunications, real estate, insurance, transportation, and fintech. This diversity gives the index relative resilience against sector-specific shocks, as a decline in one sector’s performance can be offset by growth in another. The banking and energy sectors remain the most influential on the index’s movement, with companies like Saudi Aramco, Al Rajhi Bank, and National Commercial Bank holding the largest weights. In recent years, new sectors such as fintech and healthcare services have risen, enhancing sector representation and adding further stability and dynamism to the index.

The TASI index is anchored by the performance of the largest companies by free-float market capitalization. Leading the list is Saudi Aramco (the world’s largest oil company), which accounts for about 30% of the index’s weight. It is followed by Al Rajhi Bank, Saudi National Bank, Saudi Basic Industries Corporation (SABIC), and Saudi Telecom Company (stc). The index is also affected by some companies in the consumer goods sector, such as Almarai, and in transportation and industry. Consequently, TASI’s movements are heavily dependent on the results and news of these companies, such as earnings announcements, annual dividend distributions, or strategic agreements. For this reason, investors and analysts pay special attention to these companies when tracking the index.

During 2024 and 2025, Tadawul TASI experienced notable growth, supported by rising oil prices, domestic economic stability, and regulatory developments. The index surpassed the 11,000-point mark by the end of 2025, reaching levels up to 11,250 points in some 2026 sessions, according to official Tadawul data. The total market capitalization exceeded SAR 3 trillion, with average daily share turnover above 1.5 billion shares and daily trading volumes exceeding SAR 8 billion. In terms of companies, P/E ratios in the banking sector ranged from 12 to 15, while dividend yields for major companies were around 3-6% annually. These figures reflect high activity and growing market confidence, supported by balanced economic policies and inflows of both local and foreign liquidity.

Several factors affect the performance of the Tadawul TASI index, most notably global oil prices, government fiscal policies, interest rates, and market liquidity. Global developments such as geopolitical tensions or major economic events (like changes in exchange rates or US interest rates) also play a role in guiding the index’s movement. Domestically, the results of major companies, dividend policies, regulatory changes, or the listing of new companies impact the index’s direction. Additionally, public offerings (IPOs) and large-scale government investments (such as NEOM and renewable energy projects) influence investor sentiment and liquidity flows, which are reflected in the index’s performance.

Tadawul TASI is the largest market index in the Middle East in terms of market capitalization and liquidity. Tadawul directly competes with UAE markets (Dubai and Abu Dhabi), which have seen rapid development in recent years. Internationally, the Saudi market is classified as an emerging market by global institutions such as MSCI and FTSE, enabling it to attract global investment funds. Compared to the London or New York stock exchanges, liquidity remains lower, but regulation and transparency in the Saudi market have improved significantly, with the adoption of disclosure and governance standards. Increased foreign investment gives the Saudi market a competitive edge, especially after raising foreign ownership limits in certain sectors.

The Saudi stock market witnessed significant technological and regulatory updates during 2024-2025. Highlights include the launch of an advanced electronic trading platform offering real-time data updates and advanced analytics, as well as increased trading flexibility through evening sessions. These updates provided greater liquidity and attracted new investor segments, particularly younger and digital investors. On the regulatory front, the Capital Market Authority enhanced transparency and disclosure, facilitated foreign investor access by raising ownership limits, and strengthened governance procedures. The Saudi government also issued new sukuk and bonds, diversifying funding sources and attracting new capital.

In addition to the main market covered by TASI, there is the Nomu Parallel Market, which targets small and medium-sized companies with high growth potential. Nomu companies are not included in the TASI calculation, but the expansion of this market signals the dynamism of the Saudi economy and the desire of startups to leverage funding opportunities. Nomu included around 20-25 companies in 2024-2025, offering them access to investors and the ability to grow their businesses. Over time, some of these companies may transition to the main market, enhancing TASI’s vibrancy and increasing representation of emerging sectors.

The Tadawul market is characterized by relatively high liquidity compared to regional markets, with daily traded shares exceeding 1.5 billion in 2025 and daily trading volumes above SAR 8 billion. This liquidity is distributed among retail investors, local institutions, and foreign funds. High turnover rates indicate an active market attractive to both traders and investors. The Tadawul platform offers advanced mechanisms such as instant market orders, margin trading, and real-time order matching, which have enhanced execution efficiency and reduced price gaps.

The TASI index itself cannot be purchased directly, but investors can buy shares of constituent companies or invest via exchange-traded funds (ETFs) linked to the index. Trading platforms and local banks offer digital services to track index movements and execute buy and sell orders. Analytical platforms such as SIGMIX provide technical and statistical analysis tools to help understand trends and assess opportunities and risks. Investors are advised to review financial data, profitability and dividend rates, and stay updated on economic news and government policies before making any decisions, with the importance of consulting a licensed financial advisor.

The Saudi stock market is subject to several key risks, most notably heavy reliance on oil prices, global economic volatility, and international interest rates. Geopolitical tensions or competition from Gulf markets can also affect investor confidence. Nevertheless, the market offers attractive investment opportunities thanks to high dividend yields in some sectors (especially banking and energy), as well as expansion in mega-projects and digital transformation, which accelerates trading and increases market efficiency. Success in TASI investment depends on the investor’s ability to understand market dynamics, analyze key sectors, and manage risks effectively.

In recent years, the Saudi financial market has accelerated digital transformation, both at the market infrastructure level and among listed companies. Digital platforms allow investors to track the market and execute trades in real time, while offering advanced analytical tools for rapid and efficient trend evaluation. On the corporate side, innovations in financial services and modern technologies (such as artificial intelligence and big data analytics) have improved the performance of banking and fintech sectors. This digital transformation has enhanced the market’s capacity to absorb greater liquidity and facilitate the entry of new investors, positively impacting TASI’s performance.