<prompt> Human: Im currently dollar cost averaging my way into IVV. Every paycheck Ill buy a share 245.I know its smart to diversify across sectors and products but I want to be fairly aggressive right now as Im only 24 and will not need to access this portion of my savings in the near future. In my experience the SP generally goes up over time so I figure this is a safe bet. My question is should I be buying into other index funds or is it ok to stay with IVV?Edit: This is not an emergency fund, its discretionary savings  <response>: The SP 500 is a great way to own US stocks. I would also look at an international stock ETF.Its not clear from your post, but you shouldnt put your emergency savings in stocks. 