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BIST 100 index

BIST 100 is the main benchmark index of Borsa Istanbul, made up of the 100 stocks with the largest market value and trading volume. BIST 100 is the primary reference of the Turkish equity market.
Contents
  1. 1.Key points
  2. 2.Formula / calculation
  3. 3.Interpretation
  4. 4.Pitfalls
  5. 5.Frequently asked questions

Key points

  • It covers 100 stocks selected from the Star Market by free-float market cap and traded value, with the constituent list reviewed every quarter.
  • A rising BIST 100 signals broad optimism and a falling one pessimism.
  • banks, holdings and a few large industrials make up most of the index, so it may not represent the whole market.

Formula / calculation

it is weighted by free-float market cap, with caps on the weight of a single stock. The price index (XU100) excludes dividends; the total return index includes them. Investors follow both TL and USD-based values.

Interpretation

It also contains the BIST 30 and BIST 50 stocks.

A rising BIST 100 signals broad optimism and a falling one pessimism. Funds and portfolio managers benchmark their returns against BIST 100, and stock betas are computed relative to it.

Pitfalls

banks, holdings and a few large industrials make up most of the index, so it may not represent the whole market. In high-inflation periods a nominal index gain does not mean a real gain.

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Frequently asked questions

BIST 100 is the main benchmark index of Borsa Istanbul, made up of the 100 stocks with the largest market value and trading volume.

it is weighted by free-float market cap, with caps on the weight of a single stock. The price index (XU100) excludes dividends; the total return index includes them. Investors follow both TL and USD-based values.

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