Direct Answer

An index provider writes the rules an index follows, calculates the resulting number, and licenses both. The provider is usually a different company from the fund manager tracking the index, and the fund pays to use it.

Providers covered here

  • FTSE Russell: 11 indexes covered, including Russell 2000, Russell 1000, Russell 3000.
  • Nasdaq: 10 indexes covered, including Nasdaq Composite, Nasdaq-100, Nasdaq Next Generation 100.
  • S&P Dow Jones Indices: 9 indexes covered, including S&P 500, Dow Jones Industrial Average, S&P MidCap 400.
  • MSCI: 5 indexes covered, including MSCI World, MSCI ACWI, MSCI Emerging Markets.
  • STOXX/Deutsche Börse: 4 indexes covered, including DAX, MDAX, SDAX.
  • Euronext: 4 indexes covered, including CAC 40, SBF 120, AEX.
  • STOXX: 3 indexes covered, including STOXX Europe 600, EURO STOXX 50, STOXX Europe 50.
  • Hang Seng Indexes: 3 indexes covered, including Hang Seng Index, Hang Seng China Enterprises Index, Hang Seng TECH Index.
  • NSE Indices: 3 indexes covered, including Nifty 50, Nifty Next 50, Nifty 500.
  • S&P Dow Jones Indices/TMX: 3 indexes covered, including S&P/TSX Composite, S&P/TSX 60, S&P/TSX Completion.
  • SIX: 2 indexes covered, including SMI, SPI.
  • JPX: 2 indexes covered, including TOPIX, JPX Prime 150.
  • Shanghai Stock Exchange: 2 indexes covered, including SSE Composite, SSE 50.
  • Shenzhen Stock Exchange: 2 indexes covered, including Shenzhen Component Index, ChiNext Index.
  • Korea Exchange: 2 indexes covered, including KOSPI, KOSDAQ.
  • Asia Index/BSE: 2 indexes covered, including BSE Sensex, BSE 500.
  • FTSE Russell/JSE: 2 indexes covered, including FTSE/JSE All Share, FTSE/JSE Top 40.
  • BME: 1 index covered, including IBEX 35.
  • FTSE Russell/Borsa Italiana: 1 index covered, including FTSE MIB.
  • Nikkei: 1 index covered, including Nikkei 225.
  • China Securities Index: 1 index covered, including CSI 300.
  • TWSE: 1 index covered, including TAIEX.
  • S&P Dow Jones Indices/ASX: 1 index covered, including S&P/ASX 200.
  • ASX: 1 index covered, including All Ordinaries.
  • NZX/S&P Dow Jones Indices: 1 index covered, including S&P/NZX 50.
  • FTSE Russell/SGX: 1 index covered, including Straits Times Index.
  • FTSE Russell/Bursa Malaysia: 1 index covered, including FTSE Bursa Malaysia KLCI.
  • Stock Exchange of Thailand: 1 index covered, including SET Index.
  • Indonesia Stock Exchange: 1 index covered, including IDX Composite.
  • Philippine Stock Exchange: 1 index covered, including PSEi.
  • Ho Chi Minh Stock Exchange: 1 index covered, including VN-Index.
  • B3: 1 index covered, including Ibovespa.
  • S&P Dow Jones Indices/BMV: 1 index covered, including S&P/BMV IPC.
  • S&P Dow Jones Indices/Santiago Exchange: 1 index covered, including S&P IPSA.
  • S&P Dow Jones Indices/BYMA: 1 index covered, including S&P Merval.
  • MSCI/BVC ecosystem: 1 index covered, including MSCI COLCAP.
  • S&P Dow Jones Indices/BVL: 1 index covered, including S&P/BVL Peru General.
  • Saudi Exchange: 1 index covered, including Tadawul All Share Index.
  • Tel Aviv Stock Exchange: 1 index covered, including TA-35.
  • Egyptian Exchange: 1 index covered, including EGX 30.
  • ADX: 1 index covered, including FTSE ADX General Index.
  • Dubai Financial Market: 1 index covered, including DFM General Index.

Why constituent lists are not reproduced here

Index names, levels and methodology are facts and this library explains them freely. Constituent lists with weights are a licensed dataset: providers sell access to them, and a list shown on a provider's public page is not permission to copy, automate or redistribute it.

Swoopr holds no index data licence, so every index page links to its provider for current membership. That boundary is enforced in the build rather than left to editorial memory.

Frequently Asked Questions

What does an index provider actually do?

It writes and maintains the rules: which securities are eligible, how they are selected, how they are weighted, and when the membership is revised. It then calculates and publishes the resulting number, and licenses both the index and its data.

Do index providers charge for their indexes?

Yes. Providers license their indexes to fund managers that track them and license the underlying data separately. That licensing is why constituent lists and weights are not freely republishable.

Can two providers cover the same market differently?

Routinely. Providers apply their own eligibility criteria and country classifications, so two indexes described as covering the same market can hold different companies and classify the same country differently.