<prompt> Human: I got married about a year and a half ago and were looking to start expanding our family. Thats led us to really take stock of our finances and try to get everything in order. We have our budget fairly well under control thanks in large part to this subreddit, but theres the one REALLY big thing that Ive sort of just stayed away from. The 700k sitting in an investment account thats all in just one stock.My wifes grandfather had the foresight to give her something like 10k worth of stock when she was born, and apparently picked a good one. Its performed well in the past and from all indications the company and the industry its in will continue doing well in the future. And thats great, but everything inside of me is screaming to DIVERSIFY RIGHT NOW. My wife sees the problem, but we really dont know how to go about tackling the issue.Her grandfather always said that the money was to be used for school or for starting her own business. Were both in our late twenties and dont expect to be going back to school, and were not likely to start our own businesses, so weve decided not to touch the money, but rather honor her grandfathers wishes and use it for our future kids college funds. Which is really neat because her grandfather will have paid for his great grandkids college educations 30 years before they were born. Anyway, thats all to say that this is to be a long-term investment which we wont need to touch for approximately 20 years. My wife wants to talk to a financial adviser, and I agree, but I dont feel comfortable trusting some random stranger not to take advantage of us in some way when were talking about that kind of money. tldr; we have 700k in just one stock. What do we do?EDIT: Thank you so much for all of the responses! The feedback from you all has been incredible and my wife and I have a lot more research to do, but this has been insanely helpful and will get us started off on the right foot. I cant thank you all enough. Assistant: I think you need to get a better understanding of the stock itself - what company, what sort of returns did you make, does it pay dividends? It could be a great company and may be best to leave it alone.You also need to understand any tax implications, and if you are setting the money aside for college is there a way to put it into an account that may help reduce taxes when the stocks are sold.Something else to consider, if you get stocks that pay dividends that could bring in some money. If you have 700k of stocks, and put that into a company that pays 2 dividends that is 14k per year and the stocks themselves could still retain value OR go up.Human: Its not a dividend paying stock - though thats something I didnt even consider. Initial capital of 10k, now 700k. So 690k return. Assistant: Are you saying that her grandfather never invested anything more in it other than the initial outlay of 10,000 and that no dividends were paid to reinvest? Holy crap.I dont know how old your wife is but if I assume that shes 27 thats an annual rate of return of:700,000 10,000127 1.17041.1704 - 1 100 17.04About a 17 rate of return a year.Is it Berkshire Hathaway?Human: Its an INSANE rate of return. Were both 29, so not quite that good, but still awesome. Not Berkshire, Assistant: Why so cagey about which stock it is?Human: Just feel a bit weird about it, not sure why.  <response>: What, did grandpa invest in Big Als Whips and Chains or something?Just spit it out, it doesnt provide any privacy to you unless it turns out that this 700k is some significant percentage of the total company. And on the plus side, we might be able to give a little more accurate advice on whether to drop it immediately, or if its okay to hang on to some of it. 