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Companies that merge or change their names

Discussion in 'Stock Trader Support' started by SneakyDave, Feb 7, 2013.

  1. SneakyDave

    SneakyDave Member Sportsbook

    Is your system able to handle this type of change, or what happens if a symbol just "goes away". Similar to what happened with RIMM recently changing to BBRY?
  2. Bob

    Bob Developer Staff Member

    I can only handle things that are available through the API. The API is purely PULL (its not a push/pull system). Everything is driven off of the Stock Symbol, so Stock Trader pulls based on the stock symbol. If the stock goes defunct, yahoo eventually (but not right away) removes that stock from their system and when a request is sent for that symbol, it will return zero'd out data and then eventually a NULL record (or some system error message).

    One of the advanced tools that are under development will allow you to mass remove a stock symbol, so if a symbol goes away, you can just enter that symbol, hit remove and it will remove that from everyones accounts.

    As far as name changes go, same thing applies for the API being a pull system. Yahoo doesn't add any additional information/fields to a stock record that indicates a name change is coming, nor anything related to name change. They just change the name and the symbol.

    I could add a tool that allows you to change a symbol from XXXX to YYYY, but all that will do is rename the symbol's for any members that had XXXX stock. It won't handle any financial changes that might also be involved with the merger like a price change or split. There is simply no way to handle that as its not part of the API. The feed doesn't contain that kinda of info.
    SneakyDave likes this.
  3. SneakyDave

    SneakyDave Member Sportsbook

    Right now, people can just notice that a company has changed, and then request the admin to move their money in the old company to the new one. The stock trading system still tells the user how many shares they owned, right, even if the symbol isn't trading anymore?
  4. Bob

    Bob Developer Staff Member

    Well, I believe that Yahoo clones the record so that if attempting to access the OLD Symbol, it retrieve the data from the new symbol. I can't test that tho until it actually happens. The portfolio will still display, but won't be "functional" for that particular stock and some of the data might be NULL.
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