Assuming you'll be adding regularly I would start with the investor shares of VTSAX which also have a $3000 initial investment. A bit more expense ratio than VTI version, but because it is a mutual fund instead of ETF you can add regularly without paying commissions and when you reach $10,000 can convert to VTSAX and have the lower fees. Either way a good choice.Sounds like you're off to a good start with this fund, but not sure exactly what you're investing in or why. I would highly recommend reading JL Collins Stock Series. It was extremely helpful to me personally when starting off with managing my own investments and he is highly thought of by many around here. I wrote a review of the stock series here if interested which will then in turn link you to his site: http://eatthefinancialelephant.com/diy-investing-resource-1-jl-collins-stock-series/Hope that helps.Cheers!