But maybe. Vanguard has 6%, Blackrock and Fidelity at 5% each, some of the other investment firms also offer index. I'll peg that all up, 45-50% of the invest

But maybe. Vanguard has 6%, Blackrock and Fidelity at 5% each, some of the other investment firms also offer index. I'll peg that all up, 45-50% of the investments are in some kind of index fund. Lots of money and market push there as indexes. Bogle said that there could be issues at the 90% level, so we are still pretty far away. My issue is funds that are Index 500 or DJI average are set by someone else. Hence the huge number of funds that own Apple and can push on them. When they rebalances those indexes, it can be a traumatic event. On the other hand, index funds are a way of playing par golf with your money every day.