Can someone recommend a good source for corporate action data? I need at the very least: ticker changes, dividends, splits, acquisitions and delistings. I historically used Bloomberg Back Office and am looking for a suitable replacement that is within a small team's budget besides just scraping a bloomberg terminal.

Edit: More generally where are the major places getting their data? Are they parsing each companies websites or some some sec filings that I am missing? Is it from DTCC?

  • 2
    $\begingroup$ NYSE and NASDAQ both maintain master lists of corporate actions. $\endgroup$ Commented Jul 14, 2013 at 20:19
  • $\begingroup$ Thank you very much. I am not sure how I missed that. $\endgroup$
    – Michael WS
    Commented Jul 14, 2013 at 20:28
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    $\begingroup$ This is a site for professional quants, and in accordance to the criteria for what is on-topic, questions asking for sources of data are discouraged. $\endgroup$
    – madilyn
    Commented Jul 19, 2013 at 5:26
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    $\begingroup$ I'll bite. why are questions on quality of data off-topic? (apparently, calendar data is on topic and basic NPV questions are.) $\endgroup$
    – Michael WS
    Commented Jul 19, 2013 at 13:54

2 Answers 2


Depends on your budget of course, but:

Also, consider how much IT resources you have for accurately getting, parsing, processing and storing these data.


Try Markit.com/RED a very reliable and accurate source

  • $\begingroup$ What is that a URL or the name of a product? Please make sure your answer are elaborate enough. $\endgroup$
    – SRKX
    Commented Jun 13, 2016 at 7:57
  • $\begingroup$ Try markit.com/Product/Corporate-Actions $\endgroup$
    – ChaimG
    Commented Dec 12, 2017 at 20:54

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