John Bogle, founding father of the Vanguard Group and pioneer of index funds, could have saved buyers extra money than anybody else in historical past. By some estimates, his campaign to drive down charges has, over the previous 5 many years, left them with greater than $1trn that might in any other case have gone to fund managers. Index funds, by means of which speculators can spend money on the stockmarket as a complete, lower out the middlemen. In doing so, they’ve remodeled the world of investing.