My recommendation is to keep it where it is, and do enough studying to create a plan that works for you before you make any changes. This might sound difficult, but it's actually very easy and I think it will make you a better investor in the long run. And by being a better investor I mean you'll be wealthier later in life, or you'll be able to retire earlier - and you'll be confident as you get there. I think that's worth a few hours of reading. The reason for this is that yes, people here could tell you to put it all in VINIX, or put 86% in VINIX and 14% in a bond fund, but when you're hit with a market crash or someone - possibly someone smart who truly has your best interests at heart - tells you something different you won't know whether to stay the course or change. You won't have the confidence to stick with the plan, or realize when the plan needs to change. Generally, messing with your funds hurts you in the long run; people tend to get scared and sell when the markets are down and buy in when they're high. We're our own worst enemies.
https://www.capital.co.uk/life/why-tinkering-with-your-investments-is-doomed-to-failure/Fortunately, you really can learn most of what you need to know in just a few hours, or you could become extremely knowledgeable in tens of hours. I'd recommend starting with JLCollinsNH's Stock Series:
https://jlcollinsnh.com/stock-series/If you want to become even more knowledgeable, you could read the Bogleheads' Guide to Investing. This is a simple introduction to investments that goes a bit deeper than the Stock Series.
After reading these I think you'll know exactly what to do and why to do it. You can then create an Investment Policy Statement to ensure you stay on track. I firmly believe that knowing how to create an IPS and then writing you plan down will help most of us be much better investors. An IPS doesn't have to be intimidating; it can just be a few lines of text on a sticky note if you have a simple plan.
https://forum.mrmoneymustache.com/investor-alley/who-has-a-written-investment-policy-statement/Ok - with all that said, I realize that's probably a totally unsatisfactory answer. What is the year on the Target Date Fund you're currently in? I would expect it would be Target Date 2040, or something like that. Assuming the date is a reasonable one given your age and plans, that fund isn't a bad option. 0.40% is worse than it could be (Vanguards are about 0.15%), but it's better than many. If staying in that fund will let you sleep at night knowing you don't have do do anything and it'll remain appropriate for you as you age then you could do a lot worse than just staying there. With that said, *if* you are comfortable with taking a little more ownership of your investments, are comfortable with the volatility of the markets, and you have a minimum of 7 years before you need the money, VINIX is a great fund. I would put 100% there if I were in your position. However, without knowing your age, your goals, your tolerance for volatility, or anything else I have a hard time just telling you to put it all there. Just because that's the right approach for me doesn't mean it's right for you.