FYI: Historically, Vanguard has competed in a league of its own. Its rivals have battled over one segment of the marketplace, while Vanguard has controlled the other all by its lonesome. Only Vanguard treated funds as commodities. If competently run, suggested the company, the performances of funds within a given category converge. What counts are costs. And nobody beat Vanguard for low expenses.
Regards,
Ted
https://www.morningstar.com/articles/912928/can-vanguard-remain-alone.html