When you retire a fund, a the retirement date is placed in the date retired field.  In FIMS, this date is displayed in the record ID bar at the top of the module. It will say: Fund Retired xx/xx/xxxx fundid

There is a system view created that will also list the retired funds.  Select Retired Funds on the Fund data grid. You can also print out a fund listing of the retired funds.  Select on date retired and fill in an appropriate date range.