Offer your thoughts or opinion on the input financial query or topic using your financial background.

Investment strategy for a 20 year old with about 30k in bank account
You don't state a long term goal for your finances in your message, but I'm going to assume you want to retire early, and retire well. :-) any other ideas I'm missing out on? A fairly common way to reach financial independence is to build one or more passive income streams.  The money returned by stock investing (capital gains and dividends) is just one such type of stream.  Some others include owning rental properties, being a passive owner of a business, and producing goods that earn long-term royalties instead of just an immediate exchange of time & effort for cash.    Of these, rental property is probably one of the most well-known and easiest to learn about, so I'd suggest you start with that as a second type of investment if you feel you need to diversify from stock ownership.  Especially given your association with the military, it is likely there is a nearby supply of private housing that isn't too expensive (so easier to get started with) and has a high rental demand (so less risk in many ways.)   Also, with our continued current low rate environment, now is the time to lock-in long term mortgage rates.  Doing so will reap huge benefits as rates and rents will presumably rise from here (though that isn't guaranteed.) Regarding the idea of being a passive business owner, keep in mind that this doesn't necessarily mean starting a business yourself.  Instead, you might look to become a partner by investing money with an existing or startup business, or even buying an existing business or franchise.  Sometimes, perfectly good business can be transferred for surprisingly little down with the right deal structure. If you're creative in any way, producing goods to earn long-term royalties might be a useful path to go down.  Writing books, articles, etc. is just one example of this.  There are other opportunities depending on your interests and skill, but remember, the focus ought to be on passive royalties rather than trading time and effort for immediate money.  You only have so many hours in a year.  Would you rather spend 100 hours to earn $100 every year for 20 years, or have to spend 100 hours per year for 20 years to earn that same $100 every year? .... All that being said, while you're way ahead of the game for the average person of your age ($30k cash, $20k stocks, unknown TSP balance, low expenses,) I'm not sure I'd recommend trying to diversify quite yet. For one thing, I think you need to keep some amount of your $30k as cash to cover emergency situations.  Typically people would say 6 months living expenses for covering employment gaps, but as you are in the military I don't think it's as likely you'll lose your job!  So instead, I'd approach it as "How much of this cash do I need over the next 5 years?"  That is, sum up $X for the car, $Y for fun & travel, $Z for emergencies, etc.  Keep that amount as cash for now. Beyond that, I'd put the balance in your brokerage and get it working hard for you now.  (I don't think an average of a 3% div yield is too hard to achieve even when picking a safe, conservative portfolio.  Though you do run the risk of capital losses if invested.)  Once your total portfolio (TSP + brokerage) is $100k* or more, then consider pulling the trigger on a second passive income stream by splitting off some of your brokerage balance.  Until then, keep learning what you can about stock investing and also start the learning process on additional streams.  Always keep an eye out for any opportunistic ways to kick additional streams off early if you can find a low cost entry.   (*) The $100k number is admittedly a rough guess pulled from the air.  I just think splitting your efforts and money prior to this will limit your opportunities to get a good start on any additional streams.  Yes, you could do it earlier, but probably only with increased risk (lower capital means less opportunities to pick from, lower knowledge levels -- both stock investing and property rental) also increase risk of making bad choices.