Earlier quoted context omitted.
> Generally speaking, once a fund reaches the level outperformance of ARK, they underperform the market. Source for this? It would make sense to me if your claim was that future performance for this cohort is average. But, you seem to making a stronger claim -- that is, this cohort of outperforming funds performs worse than average going forward.
You can find lots of research on it but first, between 85-90% of actively managed investment funds underperform their benchmark: https://www.ifa.com/articles/despite_brief_reprieve_2018_spi... That means it is very, very hard to outperform. Then, if you do outperform, that tends to be an exceptional year followed by not so great results. https://www.morningstar.com/articles/1017292/what-to-expect-... Key comment: "Of…
Quote from the same article: "Eighty-eight of the 123 funds were go-go tech/Internet darlings that soared in 1999 but crashed after, losing 24.1% per year from Jan. 1, 2000, to Dec. 31, 2002."
So, it seems like the data comprising the "after-years" is highly skewed towards years when the overall market crashed, which explains the negative returns.
If your claim is true, shouldn't there be a fund that simply indexes the broad market minus top performing hedge fund holdings? If not, why not?