Sure, if you buy VTI, for example. If you want to buy fractional shares, you can buy VTSAX which is a mutual fund. You can buy both of them for free from Vangua

Sure, if you buy VTI, for example. If you want to buy fractional shares, you can buy VTSAX which is a mutual fund. You can buy both of them for free from Vanguard and they both have 0.04% expense ratios.