What's the difference that it is not equivalent to buying? Nothing is special tax-wise about those shares that they came from RSUs. If you got N shares at $X yo

What's the difference that it is not equivalent to buying? Nothing is special tax-wise about those shares that they came from RSUs. If you got N shares at $X you've paid taxes on $X*N, she same if you bought those shares with cash in your bank account. If you wish to own extra stock in your employer you'd be better suited to dollar cost average and buy every paycheck. > If [your company] currently outperforms the market What does that mean? Outperforms over some past time period? That has no bearing on the future. If you have insider knowledge that you think your company will outperform the market in the future I agree it makes sense to keep, but see above about dollar cost averaging and also consult your lawyer about insider trading laws. > most [don't], they are engineers, not experienced stock traders. Exactly, and the standard advice for non-experts is to buy index funds. Not try and guess which specific companies will outperform the market.