<prompt> Human: Ive invested a few thousand into Vanguards SP 500. The markets have really gotten a beating and so has my investments. Ive put 100 in stocks to allow the risk since I have a rainy day fund as well as a solid 401k. Its just worrisome to see 570 go out the door in a few days. Do I just need some soothsaying and keep invested? Dare I say, should I pull out? Is there something I should change? Im 27 with solid income, looking to make gains on money that would otherwise be sitting around. Any help greatly appreciated.EDIT: Wanted to say thanks for the comments, I feel much better now. I know for people well versed in this it seems trivial, but I had to get some reassurance that I was on the right track, thanks again.  <response>: Dare I say, should I pull out?Translation: I just bought near the high point, should I sell at the low point?I think you can answer it yourself now. The only time you would want to sell low would be if you think your holdings have no chance of recovering. Since you have a SP 500 fund, youre holding a large fraction of the US economy. If you dont think the US economy is going to recover like it has done after every financial crisis to date, then you should cut your losses. 