An Unpopular Idea
Almost nobody thinks that indexing investment portfolios makes sense.
There are a few exceptions. Certain versions of hedge fund indexes exist. Clearly, some people will defend the proposition. However, I have never met any of them, except for Andy Lo in passing. When Bloomberg's Matt Levine scoffed at indexing hedge funds, he spoke for nearly all investment researchers. Morningstar's team, for example, is universally skeptical.