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

$700 guaranteed to not be touched for 15 years+, should I put it anywhere other than a savings account?
If you plan on holding the money for 15 years, until your daughter turns 21, then advanced algebra tells me she is 6 years old. I think the real question is, what do you intend for your daughter to get out of this?  If you want her to get a real return on her money, Mike Haskel has laid out the information to get you started deciding on that. But at 6, is part of the goal also teaching her about financial stewardship, principles of saving, etc.? If so, consider the following: When the money was physically held in the piggy bank, your daughter had theoretical control over it. She was exercising restraint, for delayed gratification (even if she did not really understand that yet, and even if she really didn't understand money / didn't know what she would do with it). By taking this money and putting it away for her, you are taking her out of the decision making - unless you plan on giving her access to the account, letting her decide when to take it out.  Still, you could talk her through what you're doing, and ask her how she feels about it. But perhaps she is too young to understand what committing the money away until 21 really means. And if, for example, she wants to buy a bike when she is 10, do you want her to see the fruits of her saved money? Finally, consider that if you (or you & your daughter, depending on whether you want her to help in the decision) decide to put the money in a financial institution in some manner, the risk you are taking on may need to be part of the lesson for her. If you want to teach the general principles of saving, then putting it in bonds/CD's/Savings etc., may be sufficient, even if inflation lowers the value of the money. If you want to teach principles of investing, then perhaps consider waiting until she can understand why you are doing that. To a kid, I think the principles of saving & delayed gratification can be taught, but the principles of assuming risk for greater reward, is a bit more complex.