Fidelity doesn't allow partial shares unless you drip back into the same stock the dividend came from.I'm going to look into this.
I basically just my stuff set to auto reinvest any dividends I get
while investing over time in ETF's on top of my 401K.
Would you happen to know if it's possible to imitate this kinda set up on Fidelity or Vanguard by looking up
the symbols they're using ?
M1 Finance is better for reinvestment into their pies. You can reinvent your dividends into whatever is the best value at the time buying partial shares.
I know nothing of Vanguard. I use Fidelity and SoFi.