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Returns a numerical value, indicating the expiration date of the financial instrument the study is applied to. The date is received from data feed's API upon adding symbol from the data vendor supplied list and is indicated in the YYYMMdd format, where YYY is the number of years since 1900, MM is the month, and dd is the day of the month.

For example, the value returned for the date of October 30th, 2008 will be 1081030, and for April 2nd, 1999 will be 990402.



A valid expiration date will be returned for futures or options only.



  • Will return a value of 1081030 for October 30th, 2008.
  • Will return a value of 990402 for April 2nd, 1999.