57 lines
2.9 KiB
Markdown
57 lines
2.9 KiB
Markdown
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List of companies in the S&P 500 (Standard and Poor's 500). The S&P 500 is a
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free-float, capitalization-weighted index of the top 500 publicly listed stocks
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in the US (top 500 by market cap). The dataset includes a list of all the
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stocks contained therein.
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## Data
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Information on S&P 500 index used to be available on the [official webpage on the Standard and Poor's website][sp-home]
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but until they publish it back, Wikipedia is the best up-to-date and open data source.
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* Index listing - see <data/constituents.csv> extracted from Wikipedia's [SP500 list of companies][sp-list].
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### Sources
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Detailed information on the S&P 500 (primarily in XLS format) used to be obtained
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from its [official webpage on the Standard and Poor's website][sp-home] - it was
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free but registration was required.
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* Index listing - see <data/constituents.csv>
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* used to be extracted from [source Excel file on S&P website][sp-listing-dec-2014] but this no longer contains a list of constituents. (Note this Excel was actually S&P 500 EPS estimates but on sheet 4 it used to have a list of members - [previous file][sp-listing] was just members but that 404s as of Dec 2014) (Note: <del>but note you have to register and login to access</del> - no longer true as of August 2013)
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* Historical performance ([source xls on S&P website][sp-historical])
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[sp-home]: http://www.spindices.com/indices/equity/sp-500
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[sp-list]: http://en.wikipedia.org/wiki/List_of_S%26P_500_companies
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[sp-listing-dec-2014]: http://www.spindices.com/documents/additional-material/sp-500-eps-est.xlsx?force_download=true
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[sp-listing]: http://us.spindices.com/idsexport/file.xls?hostIdentifier=48190c8c-42c4-46af-8d1a-0cd5db894797&selectedModule=Constituents&selectedSubModule=ConstituentsFullList&indexId=340
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[sp-historical]: http://www.standardandpoors.com/prot/spf/docs/indices/SPUSA-500-USDUF--P-US-L--HistoricalData.xls
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*Note*: for aggregate information on the S&P (dividends, earnings, etc.) see
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[Standard and Poor's 500 Dataset][shiller].
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[shiller]: http://data.okfn.org/data/s-and-p-500
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### General Financial Notes
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Publicly listed US companies are obliged various reports on a regular basis
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with the SEC. Of these 2 types are of especial interest to investors and others
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interested in their finances and business. These are:
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* 10-K = Annual Report
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* 10-Q = Quarterly report
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## Preparation
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You can run the script yourself to update the data and publish them to GitHub : see [scripts README](https://github.com/datasets/s-and-p-500-companies/blob/master/scripts/README.md).
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## License
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All data is licensed under the [Open Data Commons Public Domain Dedication and
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License][pddl]. All code is licensed under the MIT/BSD license.
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Note that while no credit is formally required a link back or credit to [Rufus
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Pollock][rp] and the [Open Knowledge Foundation][okfn] is much appreciated.
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[pddl]: http://opendatacommons.org/licenses/pddl/1.0/
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[rp]: http://rufuspollock.com/
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[okfn]: http://okfn.org/
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