LU0180781121.EUFUND refers to a specific share class (usually a retail share class denominated in Euros) of a fund domiciled in Luxembourg, identified by its ISIN (International Securities Identification Number). The fund itself is not fully described just by the ISIN and '.EUFUND' part of the ticker. To understand what specific fund it represents, such as the investment manager, fund strategy, underlying assets, and specific fees and charges associated with the '.EUFUND' share class, one would need to look up the ISIN on a financial data provider (like Bloomberg, Reuters, or Morningstar) or consult the fund's official documentation (prospectus and Key Investor Information Document). The ".EUFUND" suffix usually denotes that it's being traded or quoted on a European platform for funds.