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# Unavailable Historical Data

* Historical data is filtered by default. See our FAQ for more insight, [here](https://www.interactivebrokers.com/lib/cstools/faq/#/content/102546341).
* Bars whose size is 30 seconds or less older than six months
* Expired futures data older than two years counting from the future's expiration date.
* Expired options, FOPs, warrants and structured products.
* End of Day (EOD) data for options, FOPs, warrants and structured products.
* Data for expired future spreads
* Bond data older than 6 months
* Data for securities which are no longer trading.
* Native historical data for combos. Historical data is not stored in the IB database separately for combos.; combo historical data in TWS or the API is the sum of data from the legs.
* Historical data for securities which move to a new exchange will often not be available prior to the time of the move.
* Studies and indicators such as Weighted Moving Averages or Bollinger Bands are not available from the API.