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Index Data Sourcing: Coverage, Licensing, and Standardization

Article Quant Q&A · Author: George Hawkins

Summary

The note discusses the practical challenge of obtaining low-frequency historical and ongoing data across index providers, including index levels, constituents, and weights. The response highlights licensing as a central constraint: agreements may limit how far back data can be stored, algorithmic use may require a derived-data license, and suppliers may need distribution rights or customer-specific arrangements. Providers may also require full packages rather than selling a narrow selection of fields or indexes, so historical coverage and cost need to be checked directly.

It mentions Rimes as a possible source of multi-provider index data with negotiable output formats, while cautioning that licenses may still need to be arranged and constituents may cost extra. InvestmentDataServices is described as a possible option for unified exports and custom processing, though licensing support was uncertain and development could add cost. Another answer points to Markit for index composition data, based on institutional experience. The suggestions are dated, partly based on the respondent’s employer, and do not establish current availability or pricing; direct vendor discussions are needed.

Key ideas

  • Index data licensing can constrain storage history, redistribution, and use in investment algorithms.
  • Vendors may require separate or custom agreements, and some do not offer small subsets of their index products.
  • Data suppliers may vary in whether they include constituents and weights or charge for them separately.
  • Unified formats and custom processing can be available but may add development or data costs.
  • The provider suggestions are not a current market survey and require direct confirmation.

Tags

Full text
# Sources of index data (MSCI, FTSE, S&P etc.)?


# Sources of index data (MSCI, FTSE, S&P etc.)?












Who are the major suppliers of index data that cover multiple index providers, e.g. MSCI, FTSE, S&P etc?

There are a huge number of people sourcing e.g. equity data, but index data is much harder to come by.

I am only looking for very high level information and at low frequency - the EOD number for each index would almost be enough.

Basic information on the constituents and their weights would also be useful, but in depth analysis and such like of the indexes and their constituents isn't required.

Sites like Yahoo Finance just seem to cover a small number of major indexes, whereas I'm interested in sector indexes and such like that aren't commonly covered, e.g. MSCI World Telecommunication Services.

I am looking for a provider with historical data (going back e.g. 10 years) who will also provide data day-by-day going forward.

Currently I work with a data aggregator who, before they supply particular data, requires us to negotiate agreements directly with the individual index providers, e.g. MSCI or FTSE, rather than handling this on our behalf.

They also provide the data in a highly non-standardized form, e.g. data from MSCI will come in a different form to that from FTSE.

And they only sell the data in very non-flexible bundles, e.g. rather than just buying basic EOD numbers one has to buy a hugely expensive package of in-depth analysis of which these numbers are a tiny part.

It's not that I don't expect to pay for this data - but it would be nicer if possible to pay for just the basic data needed and to have the negotiation with the actual index providers handled behind the scenes by the data provider themselves.

Apologies if you feel this, as a rather commercial question rather than something interesting on e.g. option pricing, isn't directly appropriate to this stack exchange.

## Answer by Andreas Mayer (score 4, accepted)

https://quant.stackexchange.com/a/20633

I dont know of any provider that fulfills your whole requirements, but perhaps I can give you some useful information.

General thoughts:

- Some vendors (e.g. MSCI) can have statements in their license agreements that prohibit an entity from storing historical data older than e.g. 3 years. This could be one obstacle in finding a supplier who has full 10 year coverage of all required vendors and indexes. Historical data would probably need to be requested separately which would induce extra cost.

- The licensing agreements are a big issue here. You would probably need a license for derived data as you use the data in your decision making algorithms. The company that provides the data to you would either need a distribution license or a custom agreement with the vendor for your company and your specific data.

- Some vendors might not issue license agreements on fractals of theirs portfolio. It is possible that you have to pay for full packages.

Rimes offers index and constituent data from different providers in a format that you can discuss with them (e.g. CSV).

- As far as I know, you need to provide them with a license up-front as well, so this solution would probably not ease the burden of license agreements. I however can't guarantee this - you would have to contact them to be sure.

- You would have to pay separately for every index - constituents are not included, but you could buy them for an extra fee. As you said that you need a large number of indexes, the cost could become very high. You would need to find the break-even point between this approach and bulk licensing.

Transparency: I work for this company - not in the sales department

InvestmentDataServices could offer you a unified way to retrieve the data that you need.

- Customized processing logic could be added to your data exports e.g. forward filling, reports on missing values etc. This could however involve extra development cost - depending on your specification.

- Maybe it is possible that you can outsource your license negotiations here. At the moment there is no such offering as far as I know, but they are very flexible when it comes to customer requirements.

I am quite sure that both vendors could at least provide you with loads of index data from different providers and custom tailored data files.

But you need to get in contact with them to discuss your requirement and to get a cost estimation to see if it pays off.

## Answer by John (score 0)

https://quant.stackexchange.com/a/20631

I am not sure of the cost involved or if they have a minimum fee to partner with, but MARKIT (https://www.markit.com/Product/All) has a pretty wide offering. I was at a large investment bank for years and they provided much of the index composition data we used

## Answer by Capeya (score -3)

https://quant.stackexchange.com/a/20674

Quandl.com is the way to Go. Just have a look !

Shown in full with attribution under the source's licence. Licence: CC BY-SA 4.0 (Stack Exchange)

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.