Assessing End-of-Day Market and Fundamental Data Vendors
Summary
The document collects user reports about end-of-day price and fundamental data services. The responses offer practical ways to assess a vendor: investigate whether pricing data may be repackaged from other sources, compare volume characteristics with known providers, and look for clear disclosure of the company and its data sources. One contributor reports using a service for standardized historical financial statements and compares it with broker APIs and public regulatory data.
The accounts disagree in emphasis: one raises concerns about data provenance and vendor identity, while another describes favorable experience with coverage, historical fundamentals, and ease of use. A further reply suggests some lower-cost providers may redistribute data from other vendors. These are individual, anecdotal observations rather than a systematic benchmark or an independent audit. The document offers due diligence considerations, but its claims may be dated and do not verify any provider’s current quality, licensing, or reliability.
Key ideas
- Investigate a vendor’s data sources and provenance before relying on its market data.
- Volume reporting patterns can offer clues about whether datasets share an upstream source.
- Provider identity and transparent sourcing are relevant checks for trading data services.
- User reports describe differences in historical fundamental coverage and integration effort.
- The evidence is anecdotal and does not establish current vendor quality or licensing.
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Full text
# EOD historical data # EOD historical data Apologies If I'm not posting in the right area. Currently I'm using eoddata.com to get pricing data for the US market. Although not always 100% in pricing, I'm quite happy with it. There is another website I stumbled across recently (https://eodhistoricaldata.com/) and the price is about $40 a month which gives you access to over 60 exchanges for pricing and fundamental data. Has anyone had any experience with this? The price seems to be good to be true and I tried to search online but couldn't find anyone who has used this. Edit: I've just done a whois, and the site seems to have been setup just last year and looks quite suspicious ## Answer by TraderPatrick (score 5, accepted) https://quant.stackexchange.com/a/40978 There's about half a dozen data sites setup on the Internet that have some form of freemium subscription that simply scrape the data from another free source (Yahoo, IEX, Google etc.) and repackage it up as their own, with no acknowledgement about the source. Some others purchase a cheap personal-use subscription and package up data too. From what I can tell, eodhistoricaldata.com takes at least part of its data from Yahoo (which comes from CSI), since it exhibits the same characteristics of Yahoo's data with respect to volume figures (under-reporting of volume, rounding down to nearest 100). Any company worthy of your attention will disclose their identity and data sources. Regarding anonymized domains - Why would an authentic business which provides data on which people will rely upon to make trading decisions want to hide their identity? ## Answer by Jay (score 4) https://quant.stackexchange.com/a/43256 I'm a paying customer of https://eodhistoricaldata.com, and used it for one of my last projects to retrieve standardised, quarterly income statements, balance sheets, and cash flow statements. Of all providers I used in the past (see list below), their coverage of companies, and the range of historically available fundamental data points are the best. Simple, and fast sign up, and fair pricing. As such data points become more and more of a commodity, we can expect the price to fall even more over the next two years. ### Alternatives #### iextrading https://iextrading.com/developer/docs/#financials - Misc.: excellent documentation, very active github issue tracking #### InteractiveBrokers API https://interactivebrokers.github.io/tws-api/fundamentals.html Note: requires to open a trading account with them. Approval times vary. - Misc.: documentation isn't very good. I developed software using all of the above services. eodhistoricaldata.com is my favourite so far. Using the sec.gov free Financial Statement Data Set (https://www.sec.gov/dera/data/financial-statement-data-sets.html) is another alternative, but requires a lot of coding, and data munging. ## Answer by Nick Mugisha (score 1) https://quant.stackexchange.com/a/44819 They are low level data vendors, probably purchasing the data from eoddata and redistributing them, that why the prices are so low. The vendors who are in the same tier as eoddata will offer their prices in the same range as eoddata. If you are looking for vendors who are in the same rank as eoddata, checkout Algoseek, who also offer high quality data with easy to use API at a very affordable quote. Others are Tick data or Barchart. Try any of the above and you'll get it that eoddata offer roughly the same price as the mentioned vendors because they belong to the same tier.
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