How do you invest in the Euro Stoxx 50?

Index funds and ETFs tracking the Euro Stoxx 50 are the standard route. When comparing them, three things decide your outcome: the expense ratio, the tracking difference against the index, and the fund's domicile, which determines withholding tax on dividends.

Also check what the index actually holds before assuming it is diversified. Several major indices are dominated by a handful of very large companies, so the top ten weights matter far more than the total number of constituents.