Some of the Biggest Challenges Hedge Fund Investors Face MassPRIM's Eric Nierenberg and other investors share what they find challenging about investing in hedge funds. At the top of his list: Complacency. Related Articles Geopolitics Trump AI as Top Investor Concern While Tech Remains Long-Term Focus James Comtois Some Hedge Funds Are Behaving More Like Equities. Why Investors Should Care. Julie Segal ETFs: Growing Institutional Adoption Sponsored by Invesco