<prompt> Human: I recently opened a roth ira, put 5500 in it, and picked out the things I want to invest in. However, the stock market is doing well. Should I wait till it goes down more? If so, do I go by the 52 wk high or low for reference? I cant find any information on this, except for one article that said not to worry about what the stock market is doing and just invest right away when you open a retirement account. Also, I calculated how many shares of an etf I could buy with 500, but it dropped the worth down to 460. Is this normal? - Never mind. Figured it out. I was being stupid.Thanks, everyone! I went ahead and invested everything.  <response>: Dont try to time the market. 