أنهى مؤشر تاسي جلسة يوم الأربعاء 12 أغسطس 2026 عند مستوى 10844.12 نقطة، مسجلاً انخفاضاً قدره 4.46 نقطة، أي بنسبة 0.04%. جاء هذا التراجع في ظل تداولات نشطة، حيث بلغ حجم التداول 254,491,868 سهم، مما يعكس اهتمام المستثمرين رغم الاتجاه الهبوطي للمؤشر.
على صعيد القطاعات، سجل قطاع تجزئة الأغذية أعلى ارتفاع بنسبة 0.99%، تلاه قطاع إنتاج الأغذية بزيادة بلغت 0.96%. في المقابل، شهد قطاع الإعلام والترفيه انخفاضاً بنسبة 0.77%. من حيث الأسهم، تصدرت شركة تبوك الزراعية قائمة الأسهم المرتفعة، حيث زادت بنسبة 10.0% لتصل إلى 9.13 ريال سعودي، بينما سجلت شركة لازوردي أكبر انخفاض بنسبة 4.3% لتصل إلى 10.43 ريال سعودي.
توزعت السيولة بين الأسهم النشطة، حيث تصدرت شركة أمريكانا قائمة الأكثر تداولاً بحجم 22,562,421 سهم، تلتها شركة بترو رابغ بحجم 14,502,060 سهم. يعكس حجم التداول المرتفع تفاعلاً ملحوظاً من قبل المستثمرين، رغم التحديات التي واجهها السوق خلال الجلسة.
The Tadawul All Share Index (TASI) is the primary benchmark of the Saudi Arabian stock market, reflecting the collective performance of all companies listed on the main exchange. Launched in 1985, it has grown to encompass over 260 listed companies across 21 sectors, making it the largest stock market in the Middle East by market capitalization.
TASI is calculated using the free-float market capitalization methodology, meaning that large-cap companies like Saudi Aramco, Al Rajhi Bank, and SABIC carry a proportionally larger weight in determining the index's movement. This makes banking and energy sector performance particularly influential on daily TASI readings.
For investors, monitoring TASI today provides a quick pulse on overall market sentiment. A rising index with strong trading volume and broad participation (more advancers than decliners) generally signals healthy market conditions, while a declining index on elevated volume may indicate distribution or profit-taking pressure.
TASI Open, Close, and Price Gaps
The TASI opening price reflects trader sentiment after digesting overnight news and global events, while the closing price represents the final consensus on the index value at the end of the session. The open is set through an auction running from 9:30 to 10:00 AM, and the close through a short auction at 3:00 PM Riyadh time. The closing price is the official reference for portfolio valuation and ETF net asset values, which is why large investors favor executing in the closing auction.
When the index opens meaningfully away from the prior close, a price gap forms — an up-gap often signals positive post-close news, a down-gap selling pressure. The market frequently works to fill these gaps in later sessions, a pattern you can watch on the TASI chart and follow through the technical analysis page. For the full auction schedule, see TASI trading hours.
Reading the Live Value and Change Across Periods
TASI is calculated using free-float market capitalization weighting, so larger companies such as Saudi Aramco, Al Rajhi Bank, and SABIC move the index more. When following the TASI value, do not rely on the absolute number alone — watch the daily percentage change and the accompanying trading volume; a rise on high volume is a stronger signal than a rise on thin volume.
It helps to read the change across several periods — daily, weekly, monthly, and year-to-date — to separate short-term noise from the longer trend. Short-term change reflects reactions to news, while multi-month change reveals the broader market path. To break down each company inside the index, browse the full list of all Saudi shares.
Daily Summary Methodology and Market Breadth
The daily summary gives a full picture of Saudi market performance after each session: the final index value, the split of stocks between advancers, decliners, and unchanged, and sector performance. Its key measure is market breadth — the ratio of advancing to declining stocks. When the ratio rises above 2:1 with a rising index, the advance is broad and healthy; when it is driven by only a few large caps, it can be fragile and prone to correction.
Tracking sector performance shows where liquidity is flowing; it is enough to recall that the banking sector accounts for roughly 40% of the TASI weight to see how much it shapes the index direction. To understand unexpected moves, follow TASI news, and to gauge how serious a move is, review liquidity and trading volume data.
Frequently Asked Questions
What is the TASI index today?
TASI (Tadawul All Share Index) is the main benchmark of the Saudi stock market. It tracks the performance of all companies listed on the main market. The index is updated in real time during trading hours, Sunday through Thursday.
When does the Saudi stock market open?
The Saudi Exchange (Tadawul) opens at 10:00 AM and closes at 3:00 PM Riyadh time (AST), Sunday through Thursday. The pre-open auction session begins at 9:30 AM.
How can I track TASI performance today?
You can track TASI performance through this page, which provides the latest index data, top gainers and losers, and sector performance, along with the index value and its change across periods during trading hours.
What is the difference between TASI and Nomu (the parallel market)?
TASI is the main market index covering all major listed companies. Nomu is the parallel market designed for small and mid-cap companies with lighter listing requirements. TASI generally has higher liquidity and stricter regulatory standards.
What determines the value of the TASI index?
TASI is calculated using free-float market capitalization weighting across all companies listed on the main market. Large caps such as Saudi Aramco, Al Rajhi Bank, and SABIC carry a proportionally larger weight, so a strong move in a single heavyweight can visibly move the overall index.
What is a price gap at the TASI open?
A price gap is the difference between the previous session close and the next session open. An up-gap forms when the index opens above the prior close, and a down-gap when it opens below. Gaps typically result from news or events outside trading hours, and the market often works to fill them in later sessions.
What does the advancers-to-decliners ratio tell you about TASI?
The ratio of advancing to declining stocks is known as market breadth. When the ratio is above 2:1 alongside a rising index, the advance is broad and healthy. If the index rises on a ratio closer to 1:1, the move may be driven by only a few large caps and is less sustainable.
