Uncovering the Secrets of Singapore's Straits Times Index
ByAinvest
Thursday, Aug 14, 2025 6:22 am ET1min read
Singapore's Straits Times Index (STI) covers 85% of the local equity market and has a legacy dating back to 1966. The index is more than just a stock barometer, and there are several lesser-known facts about it. The STI is made up of the top 30 companies listed on the Singapore Exchange (SGX), and its rebalancing is based on free-float market capitalization. It is used by investors as a benchmark for local equity investments and is also used in the calculation of other indices.

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