Vanguard sets an April 1 sell-by-date for some RIA clients to downgrade service or pay $300 upcharge, part of a concerning ‘MBA-ization,’ analyst says

The $7.2 trillion Malvern, Pa, money manager grew its RIA to a staggering $300 billion in eight years, but it’s ready to crack down on investors who get premium service with pedestrian investment balances.