What is BIST 100?
The benchmark index of Borsa İstanbul, composed of the 100 companies with the highest market capitalization and trading volume.
The BIST 100 Index is the flagship index of Borsa İstanbul, Turkey's sole securities exchange. It is designed to measure the performance of the 100 most highly capitalized and liquid companies whose stocks are listed on the exchange. As a market-capitalization-weighted index, larger companies have a greater impact on its movements than smaller ones.
It serves as the primary barometer for the performance of the Turkish equity market and is closely watched by domestic and international investors. Movements in the BIST 100 reflect collective investor sentiment about Turkey's corporate sector and economic outlook. Many financial products, such as index funds and derivatives, are based on the performance of this index.