SET50 Index — Level, Chart & Constituents

What the SET50 measures

SET50 is a stock market index that tracks the performance of the 50 largest companies listed on the Stock Exchange of Thailand. As a broad market barometer, it reflects the overall direction of the Thai equity market and is part of the Asia-Pacific region. Investors use it to gauge sector rotation, market sentiment, and the relative strength of Thai equities compared with peers such as the CSI 300 or the Hang Seng Index.

Key numbers explained

• 1,076.81 points is the current index level, representing the aggregate market value of the 50 constituents scaled to a base figure.
• The index is denominated in THB (Thai Baht), so all level changes are expressed in that currency.
• Today's trading range was 1,076.35 – 1,081.23, showing the intraday low and high.
• The price change today is -0.05%, indicating a modest decline relative to the prior close.
• The 52-week low and high are 1,076.35 – 1,081.23, which in this case match today's range, highlighting a compressed trading band.
• The index is a capitalisation-weighted benchmark, meaning larger companies by market value have a greater influence on its movements.

What to watch

Broad factors that typically affect a regional equity index include corporate earnings reports, monetary policy decisions by the central bank, foreign capital flows, and shifts in commodity prices. Political developments and regional trade dynamics can also influence investor sentiment across the Asia-Pacific market. Because the SET50 is concentrated in large, liquid names, changes in sector rotation—such as moves between financials and industrials—can move the level noticeably. Comparing the index with peers like the FTSE Bursa Malaysia KLCI or the TAIEX (Taiwan Capitalization Weighted) can help contextualise Thailand's performance within the region.